Kernel panic during boot after Ubuntu upgrade (due to missing linux-image-generic package)

Published on May 9th 2025 - Listed in Linux - 0 comments

How to change a mapping field type by re-indexing in Elasticsearch

Published on April 24th 2025 - Listed in Elasticsearch ELK Kibana - 0 comments

How to fix broken monitoring checks using PhantomJS (TypeError) after Ubuntu upgrade

Published on April 15th 2025 - Listed in Linux Monitoring Icinga Internet SSL TLS - 0 comments

Fixing code errors after PHP upgrade 7.4 -> 8.1 or 8.2

Published on April 11th 2025 - last updated on April 11th 2025 - Listed in Personal Coding PHP - 0 comments

Lets Encrypt certbot failed to authenticate domain with mixed DNS records (AKA do not forget IPv6 records)

Published on April 3rd 2025 - Listed in Internet TLS SSL Security Linux - 0 comments

How to find the active (U)EFI partition and sync partition to secondary SSD in Debian Linux

Published on March 28th 2025 - Listed in Linux Hardware - 0 comments

Filesystem running out of inodes on Laravel app server due to Blade views (view cache)

Published on March 24th 2025 - last updated on March 24th 2025 - Listed in PHP Linux - 0 comments

Monitoring backend icinga2 is not running (due to time sync issue)

Published on March 11th 2025 - Listed in Icinga Monitoring Linux - 0 comments

All mail servers suddenly listed on NixSpam (ix.dnsbl.manitu.net)

Published on March 7th 2025 - Listed in Monitoring Internet Mail - 0 comments

How to retrieve metrics from all processes using Grafana Alloy

Published on February 27th 2025 - Listed in Grafana Observability Linux - 0 comments

check_esxi_hardware 20250221 released: pywbem exception improvements

Published on February 21st 2025 - Listed in Hardware Monitoring VMware Python Virtualization - 0 comments

Using GiB instead of KiB in libvirt xml memory allocation of KVM/Qemu VM

Published on February 18th 2025 - Listed in KVM Linux Virtualization - 0 comments

How to compare version numbers in a Python condition

Published on February 14th 2025 - Listed in Python Coding - 0 comments

Performance boost on my HP Microserver N40L after Debian 12 upgrade

Published on February 12th 2025 - Listed in Hardware Linux Samba - 0 comments

Fix CI/CD pipelines using EPEL repositories for EL7 (RHEL7, CentOS7)

Published on February 5th 2025 - Listed in Linux Git - 0 comments

check_smart 6.15.0 released: SMART Error Log check + usage override possibility

Published on January 31st 2025 - Listed in Hardware Monitoring Icinga Nagios - 0 comments

How to convert from Unix nano timestamp format to human readable date in Linux

Published on January 28th 2025 - Listed in Observability Influx Linux Databases - 0 comments

How to change Icingaweb2 password for icingaadmin user in backend database

Published on January 20th 2025 - Listed in Icinga Monitoring Databases MySQL MariaDB - 0 comments

rsync security update introduced a regression on Debian and Ubuntu Linux (meanwhile fixed)

Published on January 17th 2025 - Listed in Linux Security Backup - 0 comments

How to scrape local Prometheus node exporter metrics running in Grafana Alloy

Published on January 16th 2025 - Listed in Grafana Observability - 0 comments

Logstash http output plugin: difference between json and json_batch format

Published on January 8th 2025 - Listed in ELK Observability Logstash Monitoring - 0 comments

The need for a new notebook led me to the Lenovo ThinkPad T14 Gen 5 (AMD)

Published on January 3rd 2025 - Listed in Personal Hardware - 3 comments

Log manipulation and alteration with Logstash mutate filter

Published on December 30th 2024 - last updated on January 8th 2025 - Listed in ELK Observability Logstash Monitoring - 0 comments

By the way: check_es_system monitoring plugin also works on OpenSearch!

Published on December 10th 2024 - Listed in Elasticsearch ELK Monitoring OpenSearch - 0 comments

check_esxi_hardware 20241129 released: Python2 is no longer supported, potentially last and final release...

Published on November 29th 2024 - Listed in Hardware Monitoring VMware Python - 0 comments

A (planned) power cut with annoying consequences and a dead-alike network

Published on November 27th 2024 - Listed in Personal Rant Network - 0 comments

Blacklisted on spam.dnsbl.anonmails.de? Nope, this DNSBL is gone.

Published on November 13th 2024 - Listed in Monitoring Mail - 0 comments

How to renew expired Icinga2 repository key

Published on November 6th 2024 - Listed in Icinga Monitoring Linux - 0 comments

How to create associative array from a comma separated string with key/value pairs in Bash script

Published on November 5th 2024 - Listed in Linux Shell Bash Coding - 0 comments

RPM build ERROR: No build ID note found on pre-compiled binaries

Published on November 1st 2024 - Listed in Linux - 0 comments

How to show the keys from JSON output on the Linux Shell

Published on October 31st 2024 - Listed in Linux Shell Coding - 0 comments

How to fix apt upgrade error on shim-signed package (error processing package shim-signed)

Published on October 24th 2024 - Listed in Virtualization Linux - 1 comments

Trying to upgrade PowerDNS - required database schema upgrade failed (Column length too big)

Published on October 2nd 2024 - Listed in PowerDNS MySQL Databases - 0 comments

GlusterFS service not starting after system reboot (Initialization of volume management failed)

Published on September 28th 2024 - Listed in GlusterFS Linux Python Ansible - 0 comments

Sysdig not working anymore in Docker container (empty formatting token)

Published on September 24th 2024 - Listed in Kubernetes Cloud Containers Docker Linux - 0 comments

Dovecot complaining of missing DH key (Error: Diffie-Hellman key exchange requested, but no DH parameters provided)

Published on September 22nd 2024 - Listed in Linux Mail Security TLS - 0 comments

PowerDNS replication failing (TCP nameserver had error, cycling backend: GSQLBackend unable to lookup)

Published on September 17th 2024 - Listed in Linux MySQL Databases DNS PowerDNS - 0 comments

Not able to mount logical volume used as LXC container rootfs in Proxmox (special device does not exist)

Published on September 13th 2024 - Listed in Virtualization Linux Proxmox LXC LVM - 0 comments

Monitoring plugin check_smart 6.14.3 released: Performance data fixes

Published on September 10th 2024 - Listed in Monitoring Hardware - 0 comments

The Dream

Published on September 10th 2024 - Listed in Personal - 0 comments

Monitoring plugin check_es_system 1.13.0 released

Published on September 6th 2024 - Listed in Elasticsearch ELK Monitoring - 0 comments

Matomo import_logs.py script running into json.decoder.JSONDecodeError error

Published on September 5th 2024 - Listed in Linux Internet - 0 comments

How to replace CMOS battery in Cisco UCS C220 server (Voltage P3V_BAT_V_MOIN alert)

Published on August 27th 2024 - Listed in Monitoring Hardware - 0 comments

NFS share exportfs not working: Function not implemented

Published on August 21st 2024 - Listed in Linux NFS Network - 0 comments

How to fix VMware Workstation Player 17.5.2 not working on Kernel 6.8 (unable to install all modules)

Published on August 19th 2024 - last updated on November 30th 2024 - Listed in VMware Virtualization Linux - 4 comments

Apache Reverse Proxy leads to error 500, AH01144: No protocol handler was valid for the URL

Published on August 14th 2024 - Listed in Apache Varnish Linux - 0 comments

Empty CentOS 7 repository mirrors and how they break CI/CD pipelines

Published on August 8th 2024 - Listed in Linux Internet - 0 comments

pure-ftpd: (?@?) [ERROR] Sorry, but that file doesn't exist: [/etc/ssl/private/pure-ftpd.pem]

Published on July 30th 2024 - Listed in Linux TLS Security - 0 comments

Keepalived_vrrp: Warning - script XYZ is not used

Published on July 24th 2024 - Listed in Linux Network - 0 comments

Rewrite Perl script with HTML::Strip to use newer HTML::Restrict module

Published on July 17th 2024 - last updated on July 24th 2024 - Listed in Linux Perl Coding - 0 comments

Tracing a layer 2 link on a Cisco Nexus switch with port-channel interfaces using SFP+ transceivers

Published on July 12th 2024 - last updated on July 17th 2024 - Listed in Network Hardware - 0 comments

How to change a Cisco Nexus interface from mode access to trunk when used in a port-channel group

Published on July 11th 2024 - Listed in Network Hardware - 0 comments

How to use multimedia hot-keys from hardware keyboard on QMMP audio player

Published on June 27th 2024 - Listed in Hardware Linux Multimedia - 1 comments

Patching check_swap Nagios / Monitoring plugin to run without thresholds

Published on June 24th 2024 - last updated on October 1st 2024 - Listed in Monitoring Coding Icinga Nagios Linux - 0 comments

Monitoring Brother network printer with SNMP and alert when low on toner

Published on June 13th 2024 - Listed in Hardware Monitoring Coding Perl Network Icinga - 0 comments

Travis CI builds fail with expired key error on MongoDB APT repository

Published on June 12th 2024 - Listed in Cloud Coding Linux MongoDB - 0 comments

Unable to mount NFS share on Linux client (access denied by server while mounting)

Published on June 11th 2024 - Listed in Linux Network - 0 comments

How to use ignore where in service apply rule created in Icinga Director

Published on June 6th 2024 - Listed in Monitoring Icinga - 0 comments

Fixing check_varnish monitoring plugin for Varnish 6.5 and newer releases

Published on June 5th 2024 - last updated on June 21st 2024 - Listed in Monitoring Varnish - 0 comments

Thruk monitoring SLA reports not working after update (Puppeteer is missing)

Published on June 4th 2024 - Listed in Monitoring Icinga Linux - 0 comments

Rancher 2.8 Kubernetes Upgrade on downstream cluster failed (another git process seems to be running)

Published on June 1st 2024 - Listed in Kubernetes Cloud Rancher Containers Docker - 0 comments

fail2ban postfix-sasl filter not working, use postfix auth mode instead

Published on May 31st 2024 - Listed in Monitoring Linux Security Mail - 1 comments

Error after upgrading Icingaweb to 2.12.x: Please check if a db instance exists at all

Published on May 28th 2024 - Listed in Icinga Linux Monitoring - 0 comments

Fixing broken graphite-web after Linux distribution upgrade

Published on May 27th 2024 - Listed in Monitoring Icinga - 0 comments

How to renew expired PowerDNS repository key

Published on May 22nd 2024 - Listed in PowerDNS Linux - 0 comments

How to fix Zoneminder recorded videos always starting with grey content

Published on May 6th 2024 - Listed in Zoneminder Surveillance Multimedia Security - 0 comments

Understanding an erroneous spike in Grafana graph with data from InfluxDB

Published on May 4th 2024 - Listed in Databases Influx Grafana - 0 comments

Ansible: How to handle a list from command line input variable (--extra-vars)

Published on May 2nd 2024 - Listed in Ansible - 0 comments

How to use the sun (or moon) trajectory in a panel on a Grafana dashboard

Published on April 30th 2024 - Listed in Grafana Monitoring - 0 comments

How to set default values for empty vars_prompt variables in Ansible

Published on April 26th 2024 - last updated on April 27th 2024 - Listed in Ansible Coding - 0 comments

Creating an AWS EKS cluster and solving kubectl connection issues (due to older awscli version)

Published on April 25th 2024 - Listed in AWS Cloud Kubernetes - 0 comments

How to run Jitsi video conference server behind NAT and internal Reverse Proxy

Published on April 19th 2024 - last updated on March 5th 2025 - Listed in Internet Nginx Linux Network Office - 0 comments

Unable to open existing JMX config in JMeter (scriptwrapper error)

Published on April 17th 2024 - last updated on April 18th 2024 - Listed in Linux Security - 0 comments

Peugeot Update not working and stuck in progress? Verify the partition(s) of the USB drive!

Published on April 15th 2024 - last updated on April 27th 2024 - Listed in Personal Linux Windows - 0 comments

Yet another DNSBL has gone offline (spamtrap.drbl.drand.net)

Published on March 27th 2024 - Listed in Monitoring Internet Mail - 0 comments

Monitoring LDAPS with check_ldap and running into the hostname problem (Could not bind to the LDAP server)

Published on March 22nd 2024 - Listed in Linux Monitoring Icinga Nagios - 0 comments

Debugging HPE ilorest command failing (error while loading shared libraries: libz.so.1)

Published on March 20th 2024 - Listed in Hardware Linux Monitoring Shell - 0 comments

How to use Brother MFC as scanning device on Linux Desktop

Published on March 15th 2024 - Listed in Hardware Linux Personal - 0 comments

Monitoring plugin check_smart 6.14.2 released: Bugfix release for NVMe drives

Published on March 15th 2024 - Listed in Monitoring Hardware - 0 comments

How to list all available versions of a package in RPM repository

Published on March 4th 2024 - last updated on March 5th 2024 - Listed in Linux - 0 comments

How to iterate through a nested JSON, search for a specific value and print the key with Python

Published on February 27th 2024 - Listed in Coding Python - 0 comments

How to handle JSON decode error in Python script with try and except

Published on February 20th 2024 - Listed in Coding Python - 2 comments

How to reset MariaDB root login to use unix socket authentication

Published on February 18th 2024 - Listed in MariaDB Linux Databases - 0 comments

H.265 codec video issue in LibreElec 11 running on Wetek Play 2 device (fast forward freeze) workaround

Published on February 17th 2024 - last updated on February 28th 2024 - Listed in Kodi Multimedia - 0 comments

Why does a Python variable keep the default value although changed inside a function?

Published on February 16th 2024 - last updated on February 17th 2024 - Listed in Coding Python - 0 comments

How to create a Python function which accepts multiple input arguments

Published on February 15th 2024 - Listed in Coding Python - 0 comments

Differences between 301 and 302 redirects and their SEO impact

Published on February 13th 2024 - Listed in HTML Internet - 0 comments

How to fix wrongly set SOA serial to a future date in DNS zone file

Published on February 12th 2024 - last updated on February 22nd 2024 - Listed in DNS Linux - 0 comments

How to retrieve root partition disk size in GB with Ansible playbook tasks

Published on February 9th 2024 - Listed in Ansible Linux - 0 comments

siege [error] socket: unable to connect sock.c:282: Connection refused

Published on February 7th 2024 - Listed in Linux Nginx Apache Security - 0 comments

How to connect to Raspberry Pi Desktop using wayvnc VNC Server

Published on February 7th 2024 - last updated on February 8th 2024 - Listed in Hardware Linux - 4 comments

kubectl rollout error: unknown command restart deployment

Published on January 25th 2024 - Listed in Kubernetes Cloud Rancher Containers - 0 comments

Unable to remove LV snapshot: Logical volume in use (by grub-mount process!)

Published on January 22nd 2024 - Listed in Linux LVM - 0 comments

How to install MegaCli command on physical Ubuntu and Debian Linux servers

Published on January 17th 2024 - last updated on January 28th 2025 - Listed in Hardware Linux - 3 comments

How to run GitHub CI/CD workflows (actions) on Rocky Linux (or another distribution)

Published on January 16th 2024 - Listed in Docker Linux Containers Git - 0 comments

Error in Rocky Linux 9 container using dnf; No such command: config-manager

Published on January 15th 2024 - Listed in Docker Linux Containers Git - 0 comments

How to enable SSH with key authentication in Anthias BalenaOS image for Raspberry Pi

Published on January 11th 2024 - Listed in Hardware Linux Personal - 4 comments

MegaCli error 0x97 when trying to create new VD / Logical Drive

Published on January 10th 2024 - last updated on January 18th 2024 - Listed in Hardware Linux - 0 comments

RabbitMQ queue monitoring and fixing check_rabbitmq_queue monitoring plugin

Published on January 4th 2024 - Listed in Monitoring Coding Perl Linux - 0 comments

Perl error: Cant locate strict.pm: Permission denied (due to additional shared libraries path)

Published on December 19th 2023 - last updated on January 5th 2024 - Listed in Perl Linux - 0 comments

How to switch to LDAPS as authentication backend in Elasticsearch and solve certificate errors

Published on December 14th 2023 - Listed in Elasticsearch ELK Windows - 0 comments

Confluence removes MySQL connector library during update process

Published on December 13th 2023 - Listed in Atlassian Linux MySQL - 0 comments

How to delete SSH public (authorized_keys) keys with Ansible

Published on December 12th 2023 - Listed in Ansible Linux - 0 comments

Shell scripting: How to verify a command actually exists on the system

Published on December 7th 2023 - Listed in Linux Shell Bash Coding - 2 comments

Fixing Twilio SMS API Error 400: Permission to send an SMS has not been enabled for the region

Published on November 30th 2023 - Listed in Monitoring Cloud - 0 comments

How to read SMART drive health status of Samsung Portable SSD T7 Shield (and compile smartmontools 7.4)

Published on November 25th 2023 - Listed in Hardware Linux - 0 comments

MySQL (Community) server upgrade 5.7 to 8.0 failed, packages have unmet dependencies

Published on November 23rd 2023 - Listed in MySQL Linux Databases - 0 comments

htop on Debian 12 (Bookworm) showing all physical CPU cores - even with cgroup limits set

Published on November 20th 2023 - last updated on December 5th 2023 - Listed in LXC Linux - 3 comments

How to fix RPM conflict on package installation in rpmbuild spec file

Published on November 17th 2023 - Listed in Linux - 0 comments

How to list and backup only specific MySQL or MariaDB databases using Ansible Playbook

Published on November 16th 2023 - Listed in Ansible Linux MySQL MariaDB - 0 comments

GitLab Omnibus package upgrade error: It seems you are upgrading from X to Y

Published on November 14th 2023 - Listed in Git Linux - 1 comments

How to retrieve the latest release tag of a GitHub repository using Ansible playbook

Published on November 10th 2023 - Listed in Git Ansible - 0 comments

Where is the mailx command in Rocky Linux 9? Use s-nail from now on!

Published on November 8th 2023 - Listed in Linux Mail - 0 comments

Different rename command and usage, depending on Linux distribution

Published on November 1st 2023 - Listed in Linux - 0 comments

Analyzing and fixing Internal Server Error in PowerDNS API and Opera DNS UI

Published on October 31st 2023 - last updated on March 5th 2025 - Listed in DNS PowerDNS MySQL MariaDB Linux - 0 comments

RPM import key error: key 1 not an armored public key

Published on October 27th 2023 - Listed in Linux Git - 0 comments

How to renew expired certificates in MinIO S3 Object Storage Server

Published on October 26th 2023 - last updated on December 6th 2024 - Listed in Linux Minio Cloud - 5 comments

ERROR 3105 (HY000) at line 554: The value specified for generated column 'column' in table 'table' is not allowed

Published on October 23rd 2023 - Listed in MySQL Databases MariaDB - 0 comments

How to find the currently installed Atlassian Confluence and Jira version on the command line

Published on October 19th 2023 - last updated on April 4th 2024 - Listed in Atlassian Linux - 0 comments

Monitoring plugin check_netio: Detect network interface operational status

Published on October 2nd 2023 - Listed in Monitoring Linux - 0 comments

Bugfix in Elasticsearch monitoring plugin check_es_system, version 1.12.1 released

Published on September 30th 2023 - Listed in Elasticsearch ELK Monitoring - 0 comments

Travis CI Builds have been temporarily disabled for public repositories due to a negative credit balance

Published on September 29th 2023 - Listed in Git Coding Cloud - 0 comments

NTP not able to sync time, shows "No association IDs returned" in ntpq output

Published on September 27th 2023 - Listed in Linux - 1 comments

XFreeRDP error BIO_should_retry returned a system error 32 Broken pipe solved

Published on September 26th 2023 - Listed in Linux Windows Network - 0 comments

Monitoring plugin check_smart 6.14.1 released: Bugfix release

Published on September 22nd 2023 - Listed in Monitoring Hardware - 0 comments

mdadm RAID array with failed drive set to inactive after boot

Published on September 21st 2023 - Listed in Linux Hardware - 0 comments

BIND (named) not reloading zone with error loading from master file failed: CNAME and other data

Published on September 13th 2023 - Listed in DNS Linux - 0 comments

How to quickly resize pictures on the command line using ImageMagick convert

Published on September 8th 2023 - last updated on November 12th 2023 - Listed in Graphics Multimedia Linux - 0 comments

Cannot open file for writing error while trying to edit a file in /tmp (even as root user)

Published on September 6th 2023 - Listed in Linux Security - 1 comments

GitLab CI/CD pipeline using Docker image fails with error: shell not found

Published on August 28th 2023 - Listed in Docker Linux Containers Git - 0 comments

How to set up and disable (turn off) LED illuminator lights on Dahua IP camera

Published on August 25th 2023 - last updated on May 8th 2025 - Listed in Hardware Security Network Surveillance - 0 comments

Wordpress block editor (Gutenberg) crashes with unexpected error when editing text heading

Published on August 19th 2023 - last updated on August 21st 2023 - Listed in Wordpress CMS - 0 comments

How to run Rocky Linux 9 as LXC container, fix network and enable EPEL repositories

Published on August 16th 2023 - Listed in Linux LXC Network - 0 comments

How to solve Wi-Fi unavailable in Linux Mint on Dell Latitude notebook

Published on August 15th 2023 - Listed in Linux Hardware - 0 comments

How to check a hosts group membership in Ansible

Published on August 11th 2023 - Listed in Ansible Linux - 0 comments

How to grep for an exact string match with Perl

Published on August 4th 2023 - last updated on August 7th 2023 - Listed in Perl Coding - 0 comments

Gitlab access tokens not working anymore after upgrade to 16.x

Published on July 28th 2023 - last updated on July 31st 2023 - Listed in Linux Git - 2 comments

Fatal error during Gitlab CE upgrade to 15.11.x inside a LXC container

Published on July 28th 2023 - Listed in Linux LXC Git - 1 comments

How to fix a broken MySQL / MariaDB replication (Relay log read failure) after a crash on the slave server

Published on July 26th 2023 - Listed in MySQL MariaDB Databases Linux - 0 comments

Monitoring plugin check_shelly 0.3 released: Support for Shelly IoT Gen1 devices

Published on July 20th 2023 - Listed in Monitoring Hardware - 0 comments

Debian Linux failing to boot with dependency error for logical volume using a LVM Thin Pool

Published on July 18th 2023 - Listed in Linux LVM - 0 comments

Adding performance data to dbstats action of check_postgres monitoring plugin

Published on July 12th 2023 - Listed in Databases PostgreSQL Monitoring Perl - 0 comments

MSSQL Available Space alert: How to manually grow the database file with SSMS

Published on July 11th 2023 - Listed in Monitoring Databases Windows - 0 comments

How to monitor PostgreSQL databases with check_postgresl.pl, managed through Puppet

Published on June 30th 2023 - last updated on July 3rd 2023 - Listed in Databases PostgreSQL Monitoring - 0 comments

Varnish service not starting due to Error: Cannot create working directory

Published on June 29th 2023 - Listed in Varnish Linux - 0 comments

LXC cgroup limits not working anymore after Debian Bullseye upgrade on the host

Published on June 28th 2023 - Listed in LXC Linux - 6 comments

How to open JConsole over SSH with X11 forwarding as another user using X/Display session transfer

Published on June 23rd 2023 - Listed in Linux Java - 0 comments

Notes for double LTS upgrade: Ubuntu 18.04 to 22.04 and MariaDB 10.3 to 10.6

Published on June 20th 2023 - last updated on September 7th 2023 - Listed in MariaDB Database Linux - 0 comments

APT upgrade error while upgrading Galera cluster node from MariaDB 10.3 to MariaDB 10.4

Published on June 20th 2023 - Listed in Galera Database MariaDB - 0 comments

Brother compatible vs. original laser toner cartridges: Is the cheaper price worth the lower quality?

Published on June 19th 2023 - Listed in Hardware Personal Office - 0 comments

How to renew expired zoneminder repository key (public key is not available: NO_PUBKEY A8C670C86F88B031)

Published on June 14th 2023 - Listed in Linux Surveillance Zoneminder Security - 0 comments

How to mount a (additional) block device into a LXC container

Published on June 12th 2023 - last updated on June 13th 2023 - Listed in LXC Linux LVM - 0 comments

mysqldump: Error 1412: Table definition has changed, please retry transaction when dumping table

Published on June 6th 2023 - Listed in MySQL Databases MariaDB - 0 comments

Galera garbd terminated: Group requested gcs_proto_ver: 2, max supported by this node: 0

Published on May 31st 2023 - Listed in Galera Database MariaDB - 0 comments

SSH connection not working (userauth_pubkey: key type ssh-rsa not in Pubkey Accepted Algorithms [preauth])

Published on May 16th 2023 - last updated on May 16th 2023 - Listed in Linux Ubuntu Security - 0 comments

Unexpected APT error when trying to enable Ubuntu Pro (ESM) service

Published on May 11th 2023 - Listed in Linux Ubuntu Security SSL TLS - 2 comments

Thruk not creating PDF report anymore after upgrading to 3.x

Published on May 8th 2023 - Listed in Monitoring Linux - 0 comments

Troubleshooting very slow Wordpress backend (100% CPU usage on uploads) with eBFP and Flamegraphs

Published on May 6th 2023 - last updated on December 12th 2023 - Listed in Linux Apache PHP Wordpress - 1 comments

Monitoring plugin check_smart 6.14.0 released: Multiple improvements and enhancements

Published on April 29th 2023 - Listed in Hardware Linux Monitoring - 0 comments

How to monitor PostgreSQL database size in AWS RDS

Published on April 28th 2023 - Listed in Monitoring AWS PostgreSQL Databases Cloud - 0 comments

How to create databases, users (roles) and install extensions in AWS RDS PostgreSQL

Published on April 27th 2023 - last updated on May 8th 2023 - Listed in AWS Cloud Postgres Databases - 0 comments

Troubleshooting bad server performance caused by hard drives with huge Load Cycle Count

Published on April 25th 2023 - Listed in Hardware Linux Monitoring Grafana Observability - 0 comments

Postfix not resolving MX and deferring e-mails after DNS server change (Host or domain name not found, Name service error)

Published on April 18th 2023 - Listed in Mail Linux DNS - 0 comments

Annoying Android SMS (text message) not sent problem finally fixed! (Not sent, tap to try again.)

Published on April 14th 2023 - Listed in Personal Android - 4 comments

Solving DNS issues due to outdated /etc/resolv.conf inside Rancher managed Kubernetes after a DNS server change

Published on April 9th 2023 - Listed in Docker Kubernetes Rancher Internet Cloud - 1 comments

How to use SSH command and config with a jump (bastion) host and save a lot of time

Published on March 22nd 2023 - last updated on August 14th 2023 - Listed in Linux - 2 comments

Unable to connect with PuTTY using key authentication after distribution upgrade to Ubuntu 22.04

Published on March 21st 2023 - Listed in Linux Windows - 0 comments

Using update-alternatives to avoid /usr/bin/python: bad interpreter and point python to python3

Published on March 16th 2023 - Listed in Linux Python - 0 comments

Debian distribution upgrade to Bullseye failed with Systemd lookup error: undefined symbol: seccomp_api_get

Published on March 12th 2023 - Listed in Linux LXC Systemd - 0 comments

LXC container unable to start: Failed to setup cgroup limits for container

Published on March 9th 2023 - Listed in LXC Linux - 0 comments

Unable to boot from virtual CD/DVD drive using ISO in VMware virtual machine

Published on February 27th 2023 - Listed in VMware Virtualization - 1 comments

chroot: failed to run command bash: Exec format error

Published on February 23rd 2023 - last updated on February 17th 2025 - Listed in Linux - 0 comments

Error during Ubuntu dist-upgrade to 22.04: ubuntu-server depends on multipath-tools

Published on February 22nd 2023 - Listed in Linux Ubuntu Systemd - 0 comments

How to do TAG filtering in InfluxDB (SHOW TAG VALUES with a WHERE clause)

Published on February 21st 2023 - Listed in Influx Database Grafana - 0 comments

How to delete (old) monitoring data in InfluxDB with WHERE condition

Published on February 17th 2023 - last updated on February 20th 2023 - Listed in Icinga Influx Database - 0 comments

I am now a Certified Kubernetes Administrator (CKA)! Yay!

Published on February 16th 2023 - Listed in Kubernetes Personal - 0 comments

Automatic modprobe (enable Linux Kernel module) at boot time

Published on February 14th 2023 - Listed in Linux Kubernetes Systemd - 0 comments

First steps with self-hosted Rocket Chat: Watch the holes (bugs)!

Published on February 11th 2023 - last updated on February 11th 2023 - Listed in Cloud Linux - 0 comments

(Performance) Comparison of different compression methods used in combination with mysqldump

Published on February 8th 2023 - Listed in MySQL MariaDB Databases Linux - 0 comments

How to use check_esxi_hardware / CIM access without root user on ESXi

Published on February 6th 2023 - last updated on November 10th 2023 - Listed in VMware Virtualization Linux - 5 comments

check_rancher2 1.12.0 released: Monitoring of Rancher internal certificates in the local cluster

Published on February 2nd 2023 - Listed in Kubernetes Rancher Internet Cloud Monitoring - 0 comments

Unable to install nagios-plugins-all on RHEL 8 with EPEL repository enabled

Published on January 31st 2023 - Listed in Linux - 0 comments

Workaround for negated (exception) iptables rules with multiple sources or destinations

Published on January 30th 2023 - Listed in Network Linux Security - 0 comments

What to do when Rancher (Kubernetes) internal Ingress controller certificates have expired

Published on January 27th 2023 - Listed in Docker Kubernetes Rancher Internet Cloud Monitoring - 0 comments

Figuring out the real (and combined) memory usage of forked processes on Linux: Not the easiest thing

Published on January 26th 2023 - Listed in Linux - 0 comments

ERROR: relation table does not exist during PostgreSQL maintenance tasks (VACUUM, REINDEX)

Published on January 25th 2023 - Listed in Databases PostgreSQL - 0 comments

check_shelly 0.2 released: Monitor the relay switch (power) status

Published on January 20th 2023 - Listed in Monitoring Hardware - 0 comments

How to enable CIM Server (WBEM service) in ESXi 8

Published on January 17th 2023 - last updated on March 16th 2023 - Listed in VMware Virtualization - 1 comments

How to hide certain HTML elements in mobile view only (and solve CLS issue)

Published on January 11th 2023 - Listed in HTML Internet Personal - 0 comments

check_rancher2 1.11.0 released: Allow ignoring specific workloads, treat provisioning cluster differently

Published on January 10th 2023 - Listed in Docker Kubernetes Rancher Internet Cloud Monitoring - 0 comments

Monitoring Varnish Cache Hit Rate (Ratio) with check_varnish

Published on January 9th 2023 - Listed in Varnish Monitoring - 0 comments

New version of check_mysql_slavestatus released: Bugfix when using both -H and -S (socket) parameters

Published on January 3rd 2023 - Listed in Monitoring MySQL MariaDB Databases - 0 comments

check_esxi_hardware 20221230 released: Bugfix when no Serial Number detected (NoneType)

Published on December 30th 2022 - Listed in Hardware VMware Virtualization Monitoring Coding - 0 comments

The pain to install VMware ESXi 8 in a virtual machine (no network adapters detected and no hard disk found)

Published on December 29th 2022 - last updated on December 29th 2022 - Listed in VMware Virtualization KVM Linux - 4 comments

Purple error during ESXi 8 installation: Failed to decompress vmx.v00, status: Admission check failed for memory resource

Published on December 28th 2022 - Listed in VMware Virtualization - 1 comments

New monitoring plugin: check_sftp to monitor SFTP server(s)

Published on December 27th 2022 - Listed in Monitoring Linux Network Cloud - 0 comments

How to use SFTP password authentication in a Bash script using non-interactive (batch) mode

Published on December 23rd 2022 - Listed in Coding Bash Linux Shell - 1 comments

The problem using output redirection >/dev/null as a variable in Bash Shell script

Published on December 22nd 2022 - Listed in Coding Bash Linux Shell - 0 comments

How to solve Citrix Workspace SSL error (You have not chosen to trust...) caused by missing Root CA certificates

Published on December 19th 2022 - last updated on December 20th 2022 - Listed in Linux SSL TLS Security Virtualization - 0 comments

How to verify and monitor Tinyproxy as a HTTP forward proxy

Published on December 15th 2022 - Listed in Monitoring Proxy Linux Internet Network - 0 comments

Analyzing and solving performance issues in Ubuntu VM after OS upgrades inside VM and on physical host

Published on December 9th 2022 - last updated on December 10th 2022 - Listed in KVM Linux Virtualization Kubernetes Docker - 0 comments

Postfix process (and listener) not running after service restart: The mystery of the master.lock file

Published on December 7th 2022 - Listed in Mail Linux - 0 comments

How to create PHP files with Ansible blockinfile and fix headers already sent errors with correct markers

Published on November 30th 2022 - Listed in PHP Ansible - 0 comments

How to manually update the security feeds in GVM (Greenbone Vulnerability Management)

Published on November 29th 2022 - last updated on February 27th 2023 - Listed in Security Linux - 4 comments

Replacing my old webcam (Creative VF0700) with a new model (Foscam W81) on Linux Mint

Published on November 24th 2022 - Listed in Personal Linux Multimedia Hardware - 0 comments

How to fix unparsable structured data issues detected by Google Search Console

Published on November 20th 2022 - last updated on November 29th 2022 - Listed in Internet PHP Personal - 0 comments

How to fix Linux Mint logo (icon) not showing up as Cinnamon Menu button

Published on November 18th 2022 - last updated on May 11th 2023 - Listed in Linux - 0 comments

How to fix the missing keymaps in Debian and Ubuntu (localectl: Failed to read list of keymaps)

Published on November 15th 2022 - last updated on February 13th 2025 - Listed in Linux Systemd - 12 comments

Citrix Workspace error after Ubuntu upgrade: Keyboard mapping file is invalid or does not exist

Published on November 14th 2022 - last updated on November 14th 2022 - Listed in Linux - 0 comments

How to install Citrix Workspace app (Citrix Receiver) on Ubuntu based Linux

Published on November 11th 2022 - Listed in Linux Virtualization - 0 comments

How to block a client IP address or range in Cloudflare

Published on November 9th 2022 - Listed in Cloud Security Internet Network - 0 comments

Why Grafana panel shows wrong data from check_disk monitoring plugin (IEC vs. SI Byte calculation)

Published on November 3rd 2022 - Listed in Icinga Grafana Monitoring Grafana Observability - 0 comments

Kubernetes cluster (initiated with kubeadm) not starting after a reboot

Published on November 2nd 2022 - last updated on February 15th 2023 - Listed in Kubernetes Linux Containers - 0 comments

Host object in Nagios marked as down, check_ping shows network unreachable

Published on October 24th 2022 - Listed in Nagios Monitoring Network - 0 comments

Top 5 Java errors and how to understand them

Published on October 21st 2022 - Listed in Coding Java - 0 comments

How to rotate an image on the Linux command line using imagemagick (convert)

Published on October 4th 2022 - Listed in Graphics Multimedia Linux - 0 comments

Grafana: How to stack multiple (but not all) data series from different queries together

Published on September 30th 2022 - Listed in Grafana Icinga Monitoring - 0 comments

Ansible playbook task fail: Invalid variable name in register specified

Published on September 28th 2022 - Listed in Ansible Linux - 0 comments

otrs.Daemon.pl DateTime::TimeZone errors flooding OTRS server after system updates

Published on September 27th 2022 - Listed in OTRS Linux Perl - 0 comments

After upgrading Icingaweb2 to 2.11 where have the feature commands global switches gone?

Published on September 21st 2022 - Listed in Icinga Monitoring - 0 comments

LXC container with macvlan interface not starting after unclean stop

Published on September 16th 2022 - Listed in LXC Linux Network - 0 comments

check_rancher2 1.10.0 released: Handle newer Kubernetes versions, added ignore status in workload check

Published on September 14th 2022 - Listed in Docker Kubernetes Rancher Internet Cloud Monitoring - 0 comments

HAProxy: How to temporarily disable a backend server using the command line and the stats socket

Published on September 13th 2022 - Listed in HAProxy Linux - 0 comments

How to fix broken apt dist-upgrade when /var is out of disk space

Published on September 9th 2022 - Listed in Linux - 0 comments

Upgrading Seafile fails at Python module installation with pip3

Published on September 8th 2022 - Listed in Seafile Linux Python - 0 comments

Wordpress (Japanese SEO) hack extracting and executing code from uploaded ZIP file

Published on August 26th 2022 - Listed in Security Wordpress PHP Hacks - 0 comments

Ansible and the problem to reset the MySQL root password (unable to connect to database, check login_user and login_password are correct)

Published on August 18th 2022 - Listed in Ansible Linux MySQL MariaDB Databases - 2 comments

After Confluence copy: java.sql.SQLException: The user specified as a definer does not exist

Published on August 17th 2022 - last updated on February 15th 2023 - Listed in Atlassian MySQL MariaDB Databases - 2 comments

Unable to remove (ksh) package in Ubuntu 18.04 Bionic due to missing binfmt-support package

Published on August 11th 2022 - Listed in Linux - 0 comments

Icinga2 satellite stopped executing checks after Debian upgrade from Buster to Bullseye

Published on August 10th 2022 - Listed in Icinga Monitoring Linux - 1 comments

Understanding Perl Net::DNS resolving and patching check_rbl to support a specific nameserver

Published on August 5th 2022 - Listed in Perl Coding Monitoring DNS Mail - 0 comments

Postfix rejects all incoming e-mails with message: blocked using zen.spamhaus.org; Error: open resolver

Published on August 4th 2022 - last updated on August 11th 2022 - Listed in Mail Internet Security Linux - 2 comments

check_rancher2 1.9.0 released: Improvements in plugin output

Published on July 29th 2022 - Listed in Docker Kubernetes Rancher Internet Cloud Monitoring - 0 comments

Dell OpenManage shows degraded storage backplane, but is it?

Published on July 27th 2022 - Listed in Monitoring Hardware Linux - 0 comments

After Plesk upgrade: logrotate error shows duplicate log entry for /var/log/plesk/panel.log

Published on July 22nd 2022 - Listed in Linux - 0 comments

Error: OID not increasing when parsing SNMP output of Checkpoint VSX

Published on July 15th 2022 - Listed in Linux Security Monitoring - 0 comments

How to enable remote (syslog) udp logging in Shelly IoT device

Published on July 8th 2022 - Listed in Monitoring Hardware Linux - 0 comments

check_esxi_hardware 20220708 released: Added JSON output for Zabbix compatibility

Published on July 8th 2022 - Listed in Hardware VMware Virtualization Monitoring - 0 comments

How to show the full (historical) content of a screen session in Linux

Published on July 6th 2022 - Listed in Linux - 1 comments

Cloudflare managed WAF rule blocks Confluence page edit close request (doeditpage.action)

Published on June 22nd 2022 - Listed in Atlassian Security Internet Cloud - 0 comments

check_mysql_write 1.6 available: Plugin now creates monitoring table by itself

Published on June 21st 2022 - Listed in MySQL MariaDB Database Monitoring - 0 comments

How to detect and fix (mitigate) SSL/TLS renegotiation DOS vulnerability in Postfix

Published on June 20th 2022 - Listed in Mail Internet Security SSL TLS Linux - 0 comments

How to set up log forwarding in KeyCDN and log events to a dedicated log file with Rsyslog

Published on June 17th 2022 - last updated on June 17th 2022 - Listed in Linux Cloud Network Internet - 0 comments

check_rancher2 monitoring getting Authentication failed error on API Key with scope

Published on June 16th 2022 - Listed in Kubernetes Rancher Monitoring - 0 comments

How to properly wipe data from a replaced raid drive and solve couldnt open /dev/sdX for write - not zeroing

Published on June 15th 2022 - Listed in Hardware Linux - 0 comments

Could NOT find OpenSSL error while compiling cmake from source

Published on June 10th 2022 - Listed in Linux - 1 comments

check_rancher2 1.8.0: More performance data, new resource threshold (cpu, memory, pods) monitoring

Published on June 10th 2022 - Listed in Docker Kubernetes Rancher Internet Cloud Monitoring - 0 comments

How to find the exact center of an image using GIMP

Published on May 20th 2022 - Listed in Graphics Multimedia - 0 comments

How to append additional key value pair to a JSON object in MySQL or MariaDB

Published on May 13th 2022 - Listed in MySQL MariaDB Database Linux Coding - 0 comments

How to list only a specific EC2 instance filtered on a tag (name) in AWS cli

Published on May 4th 2022 - Listed in AWS Cloud Linux - 0 comments

Invoice Ninja v5: How to make the Account Management setting available to additional (admin) users

Published on April 29th 2022 - Listed in Internet Personal Databases - 0 comments

check_smart 6.13.0 available: Skip temperature check and improved handling of missing smartctl command

Published on April 27th 2022 - Listed in Monitoring Hardware - 0 comments

IMHO: Toshiba hard drives are underrated (expanding NAS with larger disks)

Published on April 23rd 2022 - last updated on April 25th 2022 - Listed in Hardware Linux Personal - 0 comments

How to enable Wake On LAN (WOL) on ASRock motherboard in Linux Mint

Published on April 22nd 2022 - last updated on January 14th 2025 - Listed in Hardware Linux - 1 comments

AWS: How to extend an EBS volume on EC2 instance and grow Linux LVM and file system without downtime

Published on April 21st 2022 - last updated on May 4th 2022 - Listed in AWS Cloud Linux LVM - 0 comments

LXC containers with static IP in config not working anymore after Debian Bullseye 11.3 update

Published on April 12th 2022 - Listed in LXC Systemd Linux - 0 comments

How to use Perl Net::SNMP v3 authentication with newer SHA (SHA256, SHA512) protocols

Published on April 8th 2022 - Listed in Perl Monitoring Linux - 0 comments

Unable to remove old Python version in LXC container after Debian dist upgrade (update-binfmts error workaround)

Published on March 31st 2022 - Listed in LXC Linux - 0 comments

Nagios NRPE and the different payload (packet, buffer) sizes using cross-version communication

Published on March 30th 2022 - last updated on March 31st 2022 - Listed in Nagios Icinga Monitoring Linux - 0 comments

Unable to compile from source due to configure error: Cannot find ssl headers

Published on March 30th 2022 - Listed in Linux - 1 comments

dpkg: error processing package libglib2.0-0:i386 (--configure) on APT dist upgrade

Published on March 28th 2022 - Listed in Linux - 3 comments

How to renew expired GPG key (EXPKEYSIG 3F01618A51312F3F) for GitLab APT repositories

Published on March 24th 2022 - last updated on September 28th 2024 - Listed in Linux Git - 4 comments

ILO3 hardware monitoring stopped working after Debian upgrade due to outdated TLS protocols

Published on March 24th 2022 - last updated on July 11th 2024 - Listed in Hardware Monitoring SSL Security - 0 comments

Nginx Ingress configuration gone after Rancher and Kubernetes update

Published on March 23rd 2022 - Listed in Rancher Kubernetes Docker Cloud Containers Nginx - 0 comments

MySQL APT repositories: An error occurred during the signature verification (public key is not available)

Published on March 22nd 2022 - Listed in MySQL Linux - 2 comments

Oops... there was a problem during the request after updating Matomo (Piwik) to 4.8.0

Published on March 18th 2022 - Listed in PHP Internet - 0 comments

check_http and OpenSSL 1.1.1 - an evil combo due to backward incompatibility with older OpenSSL versions?

Published on March 17th 2022 - last updated on March 23rd 2022 - Listed in TLS SSL Security Monitoring Linux - 0 comments

MySQL / MariaDB mysqldump error: Cannot load from mysql.proc. The table is probably corrupted (1728)

Published on March 17th 2022 - Listed in MySQL MariaDB Database Linux Backup - 3 comments

Icingaweb2 error: Base table or view not found (rememberme does not exist)

Published on March 15th 2022 - last updated on January 31st 2023 - Listed in Icinga MySQL Databases - 1 comments

How to monitor stale zones/domains on PowerDNS secondary (slave) servers

Published on March 11th 2022 - last updated on March 14th 2022 - Listed in PowerDNS DNS Monitoring Icinga Nagios - 0 comments

Python coding: Why query results of mysql.connector are in parentheses and how to print real values

Published on March 10th 2022 - last updated on January 23rd 2025 - Listed in Coding Python MySQL Databases - 0 comments

New version of check_zpools: Several fixes, handling unknown pool and zpool command error

Published on March 10th 2022 - Listed in Monitoring ZFS - 0 comments

How to add secure cookie flag on Jira (or any Apache Tomcat) server

Published on March 9th 2022 - Listed in Atlassian Tomcat Security TLS SSL - 0 comments

Malformed UTF-8 characters error in Opera DNS UI logs after PowerDNS upgrade

Published on March 8th 2022 - Listed in PowerDNS DNS - 0 comments

Handling validity check failed and empty client certificate chain errors in Elasticsearch

Published on March 1st 2022 - last updated on March 7th 2022 - Listed in Elasticsearch ELK Monitoring TLS SSL Security - 0 comments

How to use PHP built-in web server and disable access logging

Published on February 28th 2022 - Listed in PHP Linux - 0 comments

PowerDNS secondary (slave) unable to AXFR zone after IP address change: client has no permission

Published on February 25th 2022 - Listed in PowerDNS DNS - 0 comments

New version of check_couchdb_replication: Rewrite and improvements

Published on February 24th 2022 - Listed in Monitoring CouchDB Databases - 0 comments

Technical analysis of Wordpress hack with PHP script lock360.php as running process

Published on February 22nd 2022 - last updated on November 14th 2023 - Listed in PHP Security Linux Hacks Wordpress - 9 comments

New vulnerability exploits lead to mass hack attacks on multiple Wordpress installations

Published on February 18th 2022 - last updated on February 22nd 2022 - Listed in Security Wordpress Internet Hacks - 0 comments

Announcing new monitoring plugin: check_shelly to monitor Shelly IOT power devices

Published on February 16th 2022 - Listed in Monitoring Hardware - 0 comments

How to send HTTP requests in Python, handle authentication and JSON POST data

Published on February 15th 2022 - Listed in Coding Python - 0 comments

Cannot remove: Permission denied to delete file on local Linux file system, even with write permissions

Published on February 10th 2022 - Listed in Linux Unix - 3 comments

Troubleshooting AWS EC2 instance with lost network connectivity (after upgrade to Ubuntu 20.04)

Published on February 9th 2022 - Listed in AWS Cloud Linux Network Systemd - 1 comments

Nginx add_header not working, headers not showing up or disappearing in response

Published on February 8th 2022 - last updated on April 22nd 2022 - Listed in Nginx Internet - 0 comments

Varnish reload error due to incompatible VMOD and ABI mismatch

Published on February 4th 2022 - Listed in Varnish - 0 comments

IP address filtering in Logstash: To cidr, or not to cidr?

Published on February 1st 2022 - Listed in Logstash ELK Linux Network - 0 comments

How to change PHP version on the command line (CLI) using alternatives

Published on January 31st 2022 - Listed in PHP Linux - 0 comments

Properly upgrading both CouchDB and Operating System (Ubuntu): The order is important!

Published on January 27th 2022 - Listed in CouchDB Linux - 0 comments

mysqldump: Error 2013: Lost connection to MySQL server during query when dumping table

Published on January 26th 2022 - last updated on January 28th 2022 - Listed in MySQL MariaDB Database Linux Backup - 0 comments

Quick and easy log listener with Logstash and local file output

Published on January 25th 2022 - last updated on March 29th 2022 - Listed in Logstash ELK Linux Network - 0 comments

Interface name change in SNMP output after Checkpoint upgrade (R80.30 to R81.10) leads to monitoring issues

Published on January 21st 2022 - Listed in Monitoring Security Network - 0 comments

The pressure shock-wave from the Tonga volcano explosion caught by Adafruit/Bosch BME680 VOC sensor monitoring

Published on January 20th 2022 - Listed in Hardware Monitoring Personal Influx Grafana - 0 comments

How to enable missing secure cookie attribute in Roundcube webmail

Published on January 19th 2022 - Listed in Roundcube Cloud Mail Security - 0 comments

SNMP v3 authentication with SHA1 protocol not working after Checkpoint Gaia upgrade to R81.XX

Published on January 18th 2022 - last updated on May 2nd 2022 - Listed in Monitoring Security Network - 2 comments

How to remove a (alternative) domain from a Lets Encrypt (SAN) certificate using certbot

Published on January 17th 2022 - Listed in Security TLS Internet - 0 comments

Varnish Cache cuts a long HTTP Cookie header (seen in varnishlog)

Published on January 14th 2022 - Listed in Varnish - 0 comments

How to fix a Rancher 2 cluster node stuck registering in downstream cluster (not shown in UI)

Published on January 10th 2022 - Listed in Docker Kubernetes Rancher Internet Network Cloud Monitoring - 0 comments

Another Western Digital Green SSD dead without any pre-fail indication

Published on January 8th 2022 - last updated on September 16th 2023 - Listed in Hardware Linux - 2 comments

How to ignore (discard) certain syslog messages in rsyslogd using filters

Published on January 7th 2022 - Listed in Linux ELK - 2 comments

Update to LibreElec 9.2.8 with Kodi 18.9 (Leia) on Wetek Openelec Box (aka Wetek Play 1)

Published on January 6th 2022 - last updated on January 19th 2023 - Listed in Kodi Multimedia - 18 comments

How to solve CIFS/Samba share mount error(13): Permission denied

Published on January 4th 2022 - last updated on November 25th 2023 - Listed in Linux Windows Samba - 10 comments

LVM warning: Device for PV [...] not found or rejected by a filter

Published on January 4th 2022 - Listed in Linux LVM - 0 comments

Varnish caching combined with HAProxy balancing in Kubernetes deployments (and tackling strange DNS issues)

Published on December 16th 2021 - Listed in Kubernetes Containers Cloud HAProxy Varnish - 0 comments

Monitoring plugin check_smart 6.12.2 available: Bugfix release

Published on December 16th 2021 - Listed in Hardware Monitoring - 0 comments

Kubernetes node under disk pressure - but there is enough disk space in /var/lib/docker!

Published on December 15th 2021 - Listed in Rancher Kubernetes Docker Cloud Containers Linux - 0 comments

Using Nginx and LUA script to mitigate against Log4Shell (CVE-2021-44228) vulnerability attacks

Published on December 12th 2021 - last updated on December 15th 2021 - Listed in Nginx Security Internet - 0 comments

Monitoring plugin check_smart 6.12.1 released: Security fix, NVMe perfdata fix, Erase_Fail_Count_Total

Published on December 10th 2021 - last updated on December 10th 2021 - Listed in Hardware Monitoring Security - 0 comments

mdadm: no raid-devices specified error shows up when creating new raid array (device)

Published on December 9th 2021 - Listed in Linux - 0 comments

Cluster role issues after Kubernetes upgrade: error getting ClusterInformation: connection is unauthorized

Published on December 8th 2021 - Listed in Rancher Kubernetes Docker Cloud Containers - 0 comments

Thousands of JSON parsing errors after Logstash upgrade to 7.15

Published on December 6th 2021 - last updated on January 3rd 2022 - Listed in Elasticsearch ELK Logstash - 0 comments

Elasticsearch monitoring plugin check_es_system 1.12.0 released: Major improvements and enhancements!

Published on December 3rd 2021 - Listed in Elasticsearch ELK Monitoring - 0 comments

Monitoring plugin check_rancher2 1.7.1 released: Fix in cluster status check

Published on December 1st 2021 - Listed in Docker Kubernetes Rancher Internet Network Cloud Monitoring - 0 comments

Ansible blockinfile TypeError: startswith first arg must be bytes or a tuple of bytes, not str

Published on November 24th 2021 - Listed in Ansible - 0 comments

How to use AWS command line (CLI) with Google Authenticator as virtual MFA device

Published on November 22nd 2021 - Listed in AWS Security Linux Cloud - 0 comments

Rancher managed Kubernetes (Docker) node unable to pull images after clean-up

Published on November 18th 2021 - Listed in Rancher Kubernetes Docker Cloud Containers Linux - 0 comments

AWS EC2 instances not booting after Ubuntu distribution upgrade (grub install to wrong NVMe device)

Published on November 12th 2021 - Listed in AWS Cloud Linux - 0 comments

Docker upgrade on Kubernetes node (Ubuntu) failed: The aufs storage-driver is no longer supported

Published on November 11th 2021 - Listed in Rancher Kubernetes Docker Cloud Containers - 0 comments

Table of contents in LibreOffice Writer not working after ODT download from Google Docs

Published on November 4th 2021 - Listed in Office Cloud - 0 comments

How to create a simple HTML page with a horizontally and vertically centered image

Published on November 3rd 2021 - Listed in HTML Internet - 0 comments

Missing calico-node role in Rancher managed Kubernetes cluster after K8s upgrade with RKE

Published on October 26th 2021 - last updated on November 25th 2021 - Listed in Rancher Kubernetes Docker Cloud Containers - 0 comments

Monitoring plugin check_rancher2 1.7.0 released: Pressure conditions on Kubernetes nodes

Published on October 21st 2021 - Listed in Monitoring Containers Kubernetes Rancher - 0 comments

MySQL / MariaDB not logging errors (log_error file empty) on Ubuntu

Published on October 20th 2021 - Listed in MySQL MariaDB Database Linux - 0 comments

update-initramfs warning: initramfs-tools configuration sets RESUME but no matching swap device is available

Published on October 15th 2021 - Listed in Linux - 8 comments

Elasticsearch: unknown setting [xpack notification slack account my-watcher url]

Published on October 12th 2021 - Listed in Elasticsearch ELK - 0 comments

How to fix data corruption and strange characters in InfluxDB measurements and series names

Published on October 8th 2021 - Listed in Influx Database - 1 comments

Lets Encrypt Root CA expiry (server certificate verification failed): Make sure to remove DST Root CA X3!

Published on October 7th 2021 - Listed in Internet TLS Security SSL Linux - 8 comments

ReferenceError: primordials is not defined when running gulp with Node.js version 12 and above

Published on October 6th 2021 - Listed in Coding - 2 comments

Elasticsearch failed on parsing mappings on index creation ([_default_] mappings are not allowed)

Published on October 5th 2021 - Listed in Elasticsearch ELK - 1 comments

Monitoring plugin check_smart 6.11 released: NVMe attributes with dots and order output by priority/criticality

Published on October 4th 2021 - Listed in Monitoring Hardware - 0 comments

Elasticsearch X-Pack error after upgrade: Incorrect realm settings found

Published on October 1st 2021 - Listed in Elasticsearch ELK - 0 comments

Elasticsearch error: The index was created with version [x.x.x] but the minimum compatible version is [x.x.x]

Published on September 30th 2021 - Listed in Elasticsearch ELK - 0 comments

PHP errors Class Locale and DOMImplementation not found after Icingaweb 2 upgrade

Published on September 29th 2021 - Listed in Icinga Monitoring PHP Linux - 2 comments

Monitoring Windows hosts with NSClient++: Service and system checks using NRPE and API

Published on September 27th 2021 - last updated on October 5th 2021 - Listed in Windows Monitoring - 1 comments

MySQL syntax error when inserting empty values using PHP (not automatically assigned NULL)

Published on September 22nd 2021 - Listed in PHP MySQL MariaDB Database Coding - 0 comments

How to monitor and handle evicted pods (containers) in Rancher managed Kubernetes

Published on September 17th 2021 - Listed in Docker Kubernetes Rancher Internet Network Cloud Monitoring - 0 comments

Debian boot and freeze issues with Kernel panics on HP Proliant DL380 G7 servers

Published on September 16th 2021 - last updated on January 30th 2025 - Listed in Hardware Linux - 11 comments

When mount stops working in Linux (systemd: mount unit is bound to inactive unit)...

Published on September 7th 2021 - Listed in Systemd Linux - 8 comments

Problems with plugins (apps) after Confluence upgrade due to plugin cache

Published on September 7th 2021 - Listed in Atlassian Linux - 0 comments

Confluence upgrade from 7.7 to 7.13 fails with SQL error on replicated MySQL database

Published on September 6th 2021 - last updated on November 13th 2023 - Listed in Atlassian MySQL Database - 0 comments

Debian 11 (Bullseye) and the problem with bond (bonding) LACP interfaces

Published on September 1st 2021 - last updated on September 15th 2022 - Listed in Linux Hardware Network - 12 comments

Nginx reverse proxy error: SSL alert number 40 while SSL handshaking to upstream server (SSL server name)

Published on August 30th 2021 - Listed in Nginx Security TLS - 8 comments

Monitoring plugin check_rancher2 1.6.1 released: Bugfix in cluster and project lookup

Published on August 25th 2021 - Listed in Docker Kubernetes Rancher Internet Network Cloud Monitoring - 0 comments

How to solve vertical lines in scanned documents on Brother MFC 9330CDW

Published on August 24th 2021 - Listed in Hardware - 0 comments

How to secure the Plesk Panel with a Lets Encrypt certificate (and solve port 8443 problem)

Published on August 24th 2021 - Listed in Internet TLS Security Cloud SSL - 0 comments

Monitoring plugin check_vmware_snapshots with Perl error: Server version unavailable

Published on August 20th 2021 - Listed in Perl Monitoring VMware Virtualization - 1 comments

check_nrpe 4.x and NSClient++ 5.x: (ssl_err != 5) Error - Could not complete SSL handshake

Published on August 20th 2021 - Listed in Monitoring Windows - 6 comments

urllib3 (1.26.6) or chardet (3.0.4) doesn't match a supported version! python dependency warnings

Published on August 19th 2021 - last updated on February 15th 2022 - Listed in Monitoring Python Coding - 4 comments

Crackling, buzzing sounds and bad audio quality in Linux Mint finally solved!

Published on August 11th 2021 - last updated on July 5th 2022 - Listed in Multimedia Linux Hardware - 17 comments

VLC unable to play music from Samba share (Your input cant be opened: unable to open the MRL)

Published on August 10th 2021 - Listed in Multimedia Linux Samba - 0 comments

Bugfix release of check_esxi_hardware monitoring plugin: TLSv1 fix

Published on August 9th 2021 - Listed in VMware Monitoring Virtualization - 0 comments

check_esxi_hardware compatibility matrix (ESXi, Python, pywbem)

Published on August 9th 2021 - last updated on November 29th 2024 - Listed in VMware Monitoring Virtualization - 0 comments

How to get a Windows 7 virtual machine (without Service Pack) ready to use

Published on August 9th 2021 - Listed in Windows Virtualization - 0 comments

Varnish with cryptic error: Message from VCC-compiler: Symbol not found

Published on August 4th 2021 - Listed in Varnish - 0 comments

MYSQL_ATTR_INIT_COMMAND errors showing up in Icingaweb2 after OS (and PHP) upgrade

Published on July 27th 2021 - Listed in Icinga Monitoring PHP Linux - 1 comments

Unable to deploy Rancher managed Kubernetes in LXC/LXD containers due to kube-proxy and nf_conntrack_max values

Published on July 23rd 2021 - last updated on December 8th 2021 - Listed in Docker Kubernetes Rancher Internet Cloud Coding LXC Containers - 0 comments

How to quickly change the number of replicas setting in an Elasticsearch Index

Published on July 19th 2021 - Listed in Elasticsearch ELK Monitoring - 0 comments

Defining optional (sub-) URI paths in Nginx locations using PCRE regular expressions

Published on July 16th 2021 - Listed in Nginx Perl - 0 comments

Nginx reverse proxy error: SSL alert number 47 while SSL handshaking to upstream

Published on July 14th 2021 - Listed in Nginx Security TLS - 0 comments

How to backup KVM virtual machines using virt-backup.pl script

Published on July 8th 2021 - last updated on July 9th 2021 - Listed in KVM Virtualization Linux Backup LVM - 3 comments

APT repository changes its Suite value from stable to oldstable: This must be accepted explicitly before updates for this repository can be applied

Published on July 6th 2021 - last updated on April 22nd 2022 - Listed in Linux Security - 0 comments

DNS RBL check timed out on dnsbl.anticaptcha.net: Yet another DNSBL blocklist is gone

Published on July 6th 2021 - Listed in Monitoring Internet Mail - 0 comments

Monitoring plugin check_smart 6.10.0 released: Added support for aacraid controllers

Published on July 6th 2021 - Listed in Monitoring Hardware - 0 comments

Analysis of packet losses of KVM guest Ubuntu 18.04 on Debian 9 host (interface model type)

Published on July 5th 2021 - Listed in Linux Network Virtualization KVM - 1 comments

Problem with libvirt-daemon-system package during Debian upgrade

Published on July 2nd 2021 - Listed in Linux Virtualization KVM - 0 comments

Modify InfluxDB subscription to send data to multiple subscribers (asynchronous data replication)

Published on June 28th 2021 - Listed in Influx Database - 0 comments

Unable to start container using LXC 4.0 on Ubuntu 20.04 LTS (failed to mount: permission denied)

Published on June 25th 2021 - Listed in LXC Linux - 0 comments

Unable to create LXC container due to ERROR: Unable to fetch GPG key from keyserver (key server down)

Published on June 22nd 2021 - last updated on July 8th 2021 - Listed in Linux LXC Cloud - 0 comments

How to install Dell OMSA (OpenManage Server Administrator) 10.x on Ubuntu 20.04

Published on June 21st 2021 - last updated on August 31st 2022 - Listed in Hardware Linux Monitoring - 5 comments

Elasticsearch monitoring plugin check_es_system 1.11.1 released: Two bug fixes

Published on June 16th 2021 - Listed in Elasticsearch Monitoring ELK - 0 comments

How to setup Raspberry Pi Zero without mouse and keyboard attached to micro USB

Published on June 16th 2021 - Listed in Hardware Linux Network - 0 comments

How to use Linux hw-probe behind a HTTP Proxy (for probe upload to linux-hardware.org)

Published on June 11th 2021 - last updated on June 15th 2021 - Listed in Linux Perl Coding Hardware - 0 comments

How to create RAID-1 array with Hot Spare from three disks on Dell PowerEdge R7525 with PERC H745 controller

Published on June 9th 2021 - last updated on June 11th 2021 - Listed in Hardware - 0 comments

How to solve apt error server certificate verification failed

Published on June 4th 2021 - last updated on September 8th 2023 - Listed in Linux TLS Security - 1 comments

WARNING: PV /dev/sdxx in VG vgname is using an old PV header, modify the VG to update

Published on June 2nd 2021 - last updated on March 9th 2023 - Listed in Linux - 1 comments

Weird directory permissions after directory was created by Ansible playbook

Published on June 1st 2021 - Listed in Ansible Linux - 0 comments

Icinga 2 fails to upgrade package to 2.12.4 on a recently upgraded Ubuntu 18.04 Bionic (from Xenial)

Published on May 28th 2021 - Listed in Icinga Monitoring Linux - 0 comments

Mautic calendar not showing all events - how to fix the notes result limit

Published on May 26th 2021 - Listed in Office Cloud - 0 comments

Galera Cluster wsrep sst crash when trying to sync table without PK (Primary Key)

Published on May 7th 2021 - Listed in MySQL Database MariaDB Galera - 0 comments

Nginx crashes after being reloaded twice (or more) on Ubuntu 20.04

Published on May 5th 2021 - Listed in Nginx Linux - 3 comments

Monitoring plugin check_rancher2 1.6.0 released: added performance data on single Kubernetes cluster check

Published on May 4th 2021 - Listed in Docker Kubernetes Rancher Internet Network Cloud Monitoring - 0 comments

Icinga 2 with MySQL IDO fails to start after Debian release (distribution) upgrade

Published on May 3rd 2021 - Listed in Icinga Monitoring Linux - 0 comments

How to import MariaDB apt repository key behind an outgoing HTTP proxy

Published on May 1st 2021 - Listed in Linux MariaDB Internet - 0 comments

How to solve HAProxy running into max open files limit (Proxy reached process FD limit)

Published on May 1st 2021 - Listed in HAProxy Systemd Linux - 1 comments

When is a Solid State Drive (SSD) really dead? An analysis on a Crucial MX 500 1TB SSD.

Published on April 27th 2021 - Listed in Hardware Linux Monitoring - 0 comments

How to monitor Invoice Ninja white label license expiration

Published on April 26th 2021 - Listed in Monitoring - 0 comments

MySQL replication out of sync: How to do a full database restore and solve error 1032 (could not execute update_rows)

Published on April 23rd 2021 - last updated on January 31st 2022 - Listed in MySQL Database Database - 7 comments

How to monitor and graph power usage (consumption) of HP Proliant servers

Published on April 22nd 2021 - Listed in Hardware Monitoring - 0 comments

How to use Perl regular expression and save match to a new variable

Published on April 21st 2021 - Listed in Perl Coding - 0 comments

Better (PHP) coding and spotting syntax errors with CodeLobster IDE editor

Published on April 16th 2021 - Listed in HTML PHP Coding - 0 comments

Monitoring plugin check_rancher2 1.5.0 released: jq is now required instead of jshon, fixes cluster health check

Published on April 14th 2021 - Listed in Docker Kubernetes Rancher Internet Network Cloud Monitoring - 0 comments

LVM restore of logical volume not working: merging of snapshot will occur on next activation

Published on April 13th 2021 - Listed in LXC Linux LVM - 0 comments

Seafile upgrade and Seahub start errors after upgrading from Seafile 7.0 to 7.1

Published on April 9th 2021 - Listed in Cloud Linux Seafile - 0 comments

Monitoring plugin check_smart 6.9.1 released: Security fix in pseudo-device path

Published on April 8th 2021 - last updated on October 15th 2021 - Listed in Monitoring Hardware Security - 2 comments

How to use multiple check_nwc_health warningx parameters in Icinga 2

Published on April 6th 2021 - Listed in Monitoring Network Icinga - 0 comments

Samba 4: getent passwd does not show Active Directory users, but wbinfo -u works fine

Published on March 31st 2021 - last updated on July 12th 2023 - Listed in Linux Windows Samba - 5 comments

Troubleshooting Windows client unable to join a Samba 4 Active Directory (Logon failure: unknown user name or bad password)

Published on March 30th 2021 - Listed in Linux Windows Samba - 0 comments

NRPE: Error - Could not complete SSL handshake after check_nrpe was upgraded from 2.x to 3.x

Published on March 25th 2021 - last updated on May 2nd 2021 - Listed in Monitoring Linux - 3 comments

Ansible stat.islnk in playbook fails with error: dict object has no attribute islnk

Published on March 24th 2021 - Listed in Ansible Linux - 0 comments

Monitoring of Samba (CIFS) share stops working with error: Result from smbclient not suitable

Published on March 18th 2021 - Listed in Linux Windows Monitoring Samba - 0 comments

After upgrading Linux Mint (Ubuntu), attachments in KeePass 2 do not open anymore: Access denied

Published on March 15th 2021 - Listed in Linux Security - 0 comments

Hardware upgrade: ASRock B550 and AMD Ryzen 5 3600 on Linux Mint 20.1 with Kernel 5.8

Published on March 12th 2021 - last updated on August 7th 2021 - Listed in Personal Hardware Linux - 2 comments

After upgrading to Linux Mint 19, all text characters are now shown as bracket boxes

Published on March 11th 2021 - Listed in Linux Personal - 0 comments

How to use SUM function across multiple rows matching several criteria in LibreOffice Calc Spreadhsheets (SUMIFS)

Published on March 8th 2021 - Listed in Personal Cloud Internet Office - 0 comments

Important Nginx configuration changes after upgrading Ubuntu from 16.04 to 20.04

Published on March 4th 2021 - Listed in Nginx Linux - 0 comments

Monitoring plugin check_smart 6.9.0 released: Allow PCI device paths, add Percent_Lifetime_Remain SSD check

Published on March 4th 2021 - last updated on April 13th 2021 - Listed in Hardware Monitoring - 0 comments

How to do bulk/mass changes on DNS records in PowerDNS with MySQL backend

Published on March 2nd 2021 - Listed in DNS PowerDNS Linux Coding Shell MySQL Database - 0 comments

How Slot Games are categorized and made (from a creator point of view)

Published on March 1st 2021 - Listed in Internet Coding - 0 comments

Using dd to replace a solid state drive, restore a partition and grow its ext4 file system

Published on February 27th 2021 - Listed in Linux - 0 comments

How to use sed to append quote characters around a DNS TXT record

Published on February 24th 2021 - Listed in DNS PowerDNS Linux Coding Shell - 0 comments

Fixing the Monitoring API is not ready error in Rancher 2 Kubernetes clusters

Published on February 18th 2021 - last updated on February 19th 2021 - Listed in Docker Kubernetes Rancher Internet Network Cloud Monitoring - 0 comments

Invalid performance data from check_disk on CentOS results in empty monitoring graphs

Published on February 17th 2021 - Listed in Linux Monitoring Icinga Nagios - 0 comments

Rancher 2 Kubernetes cluster shows alerts on Controller Manager and Scheduler - but why? A jump into the Kubernetes rabbit hole.

Published on February 11th 2021 - last updated on August 26th 2021 - Listed in Docker Kubernetes Rancher Internet Network Cloud Monitoring - 0 comments

Monitoring plugin check_rancher2 1.4.0 released: Kubernetes namespace awareness for workload (service) checks

Published on February 10th 2021 - Listed in Kubernetes Containers Rancher Monitoring - 0 comments

A Rancher 2 upgrade gone bad: Management cluster down (a.k.a. you really need to ditch helm v2 and use helm v3)

Published on February 9th 2021 - last updated on February 16th 2021 - Listed in Docker Kubernetes Rancher Internet Cloud - 0 comments

How to migrate OTRS 6.x (Community Edition) to another server

Published on February 4th 2021 - last updated on January 10th 2023 - Listed in OTRS Linux - 3 comments

Protect your Wordpress blog from brute force login attacks

Published on February 1st 2021 - last updated on February 2nd 2021 - Listed in Wordpress Security Hacks - 0 comments

check_infoblox monitoring: End of life but not dead thanks to open source community! (new check types added)

Published on January 29th 2021 - Listed in DNS Monitoring - 0 comments

How to solve Kubernetes upgrade in Rancher 2 failing with remote error: tls: bad certificate

Published on January 28th 2021 - Listed in Docker Kubernetes Rancher Internet Cloud - 0 comments

How a dying SSD of a Windows virtual machine killed the physical Linux host

Published on January 25th 2021 - Listed in Hardware Windows Linux VMware Virtualization - 1 comments

Brother MFC 9330 CDW and the mystery of the unwanted embossing marks (a.k.a. fuser replacement)

Published on January 21st 2021 - last updated on January 22nd 2021 - Listed in Hardware Office - 4 comments

Prevent certain log events/messages to be indexed into Elasticsearch by using Logstash drop filters

Published on January 19th 2021 - Listed in ELK Logstash Elasticsearch VMware - 0 comments

Installing a newer node.js and npm version on Debian Linux using update-alternatives

Published on January 15th 2021 - last updated on March 27th 2024 - Listed in Linux - 3 comments

Painless e-mail mailbox migration/sync using imapsync

Published on January 14th 2021 - Listed in Mail Cloud Internet Linux - 0 comments

Changing timezone in Debian and Ubuntu Linux using tzdata

Published on January 13th 2021 - Listed in Linux - 0 comments

A new and multi-author technology blog is online: Announcing Geeker's Digest

Published on January 13th 2021 - Listed in Personal - 0 comments

How to use [CTRL] [ALT] [DEL] key combination in standard Remote Desktop

Published on January 11th 2021 - Listed in Windows - 6 comments

Headscratchers and fixes for the most common macOS Big Sur problems

Published on January 7th 2021 - Listed in Macintosh Apple - 0 comments

Lets Encrypt certbot unable to issue certificate, missing command line (Please choose an account)

Published on January 6th 2021 - Listed in TLS SSL Security Linux - 2 comments

How to watch Youtube on Kodi and solve 403 error on Google sign in

Published on December 18th 2020 - Listed in Kodi Multimedia Internet - 8 comments

How to deploy your own remote public IP address lookup service (in Kubernetes using Rancher 2)

Published on December 11th 2020 - Listed in Docker Kubernetes Rancher Internet Network Cloud - 0 comments

Troubleshooting service check output and performance data in Icinga 2 using debug console

Published on December 4th 2020 - Listed in Monitoring Icinga - 0 comments

WARNING: Device /dev/xxx not initialized in udev database - shown in rescue chroot environment

Published on December 3rd 2020 - Listed in Linux - 0 comments

First steps with noUiSlider: Integration into HTML forms and more examples

Published on November 26th 2020 - last updated on November 27th 2020 - Listed in Internet HTML - 1 comments

Monitoring plugin check_es_system 1.11.0 released: Show read only index(es) in output and jq is the new default JSON parser

Published on November 25th 2020 - Listed in Elasticsearch Monitoring ELK - 0 comments

Terminator terminal broadcast all option broadcasts input to all other terminator windows

Published on November 25th 2020 - Listed in Shell Linux - 0 comments

How to create a user and grant privileges in MySQL 8.x using GRANT

Published on November 23rd 2020 - Listed in MySQL Database Database - 0 comments

Solve Seahub start problems after Seafile upgrade from 6.2 to 7.0

Published on November 18th 2020 - last updated on April 9th 2021 - Listed in Cloud Linux Seafile Nginx - 0 comments

PHP: Translations with gettext not working in Apache mod_php but works on command line (caused by mod_perl)

Published on November 17th 2020 - Listed in Apache PHP Linux Coding - 2 comments

Nginx 1.14 on Debian 10 (Buster) filling error logs with nchan_store_init_worker assertion failed

Published on November 13th 2020 - Listed in Nginx Linux - 2 comments

Western Digital SSD Dashboard (Software) broken, shows empty black display

Published on November 13th 2020 - Listed in Hardware Windows - 1 comments

How to edit HTML/XML code syntax as content loaded in Xinha Editor

Published on November 12th 2020 - Listed in Internet HTML - 0 comments

How to force a restart of a (frozen) Huawei smartphone (tested with Mate 20 Pro)

Published on November 11th 2020 - Listed in Android Personal - 1 comments

Release 1.10.1 of monitoring plugin check_es_system fixes thresholds in jthreads check type

Published on November 10th 2020 - Listed in Monitoring Elasticsearch - 0 comments

Fixing Perl script using LWP unable to connect to TLS 1.2 URL; failing with sslv3 alert handshake failure

Published on November 2nd 2020 - Listed in Perl Coding Security TLS - 0 comments

How to convert form fields into JSON data and submit data with HTTP POST using curl in PHP

Published on October 28th 2020 - Listed in PHP Coding - 0 comments

How to identify and replace a failing drive behind Fusion-MPT SAS-2 controller on IBM System X server

Published on October 26th 2020 - Listed in Hardware Linux - 0 comments

How to do a firmware update of Integrated Management Module (IMM2) on a IBM System X Server

Published on October 21st 2020 - Listed in Hardware - 0 comments

How to update smartmontools drivedb in Debian Stretch (without package update)

Published on October 15th 2020 - Listed in Monitoring Hardware Linux - 1 comments

Monitoring plugin check_smart 6.8 allows to skip SMART self-assessment check, adds Commmand_Timeout attribute to default raw list

Published on October 14th 2020 - Listed in Hardware Monitoring - 0 comments

Farewell to another hard drive: Western Digital Green 2 TB dead after 63791 hours

Published on October 1st 2020 - last updated on October 3rd 2020 - Listed in Hardware Linux - 0 comments

MySQL and MariaDB multi source replication and how to monitor them with check_mysql_slavestatus

Published on September 30th 2020 - Listed in Monitoring MySQL MariaDB Database - 7 comments

Convert database and tables from utf8 to utf8mb4 and solve collation errors in Jira and Confluence

Published on September 29th 2020 - last updated on February 23rd 2022 - Listed in Atlassian Database MySQL - 11 comments

Nginx and Apache access logs in Kibana and how to search for request path / (slash)

Published on September 28th 2020 - last updated on September 29th 2020 - Listed in ELK Kibana Nginx Apache Elasticsearch Observability - 0 comments

Digitalising DVDs on Linux with Handbrake and video cutting with LosslessCut

Published on September 27th 2020 - last updated on January 10th 2023 - Listed in Multimedia Kodi Hardware Linux - 0 comments

Rancher 2 managed Kubernetes node slow due to Prometheus / How to find the reason for a slow node and dynamically adjust resource limits

Published on September 23rd 2020 - last updated on September 25th 2020 - Listed in Kubernetes Containers Rancher Monitoring - 1 comments

Linux Mint Desktop: CD/DVD drive tray closes immediately after opening

Published on September 22nd 2020 - Listed in Hardware Linux - 2 comments

Create an animated gif from a video source using ffmpeg, imagemagick and gifsicle

Published on September 21st 2020 - Listed in Multimedia Linux - 0 comments

Monitoring of Windows services with NSClient and what to do if services should NOT be started

Published on September 18th 2020 - Listed in Monitoring Windows - 2 comments

Release 1.10 of monitoring plugin check_es_system allows specific thread monitoring (using tps check type)

Published on September 16th 2020 - Listed in Monitoring Elasticsearch - 0 comments

Linux Mint cannot print on Samba shared printer after password change (apparmor and authentication errors)

Published on September 15th 2020 - last updated on April 13th 2024 - Listed in Linux Office Samba - 2 comments

Ansible playbook run fails due to Python version problem: How to force a Python version on the client

Published on September 10th 2020 - last updated on March 20th 2023 - Listed in Ansible Linux Python Personal - 5 comments

Adding a video stream from an IP camera in Kodi TV using Surveillance Cameras add-on

Published on September 8th 2020 - Listed in Multimedia Kodi Surveillance - 4 comments

Atlassian Jira not starting, shows setup page in browser and database is not yet configured in logs

Published on September 8th 2020 - Listed in Atlassian Database MySQL - 0 comments

Monitoring plugin check_netio 1.6 released: Limit tcp statistic output in performance data

Published on September 4th 2020 - Listed in Monitoring Linux Network - 0 comments

How to match case insensitive (uppercase and lower case) strings with regular expression in Bash

Published on September 4th 2020 - last updated on November 25th 2021 - Listed in Coding Bash Linux Shell - 0 comments

How to remove the first word of a line in Bash - comparing awk vs. cut vs. sed

Published on September 4th 2020 - last updated on August 4th 2021 - Listed in Coding Bash Linux Shell - 3 comments

Keepalived scripts and how to run them as non root user

Published on September 3rd 2020 - Listed in Linux Network - 0 comments

Image viewer (xviewer) on Linux Mint crashes on large pictures - set alternative (Nomacs) as preferred application

Published on September 2nd 2020 - Listed in Linux Multimedia Graphics - 1 comments

Kodi TV: Matroska video file (mkv) with increasing audio/video sync lag issue (solved!)

Published on August 31st 2020 - Listed in Multimedia Kodi - 0 comments

How to install MySQL 5.7 on Ubuntu 20.04 focal (and properly avoid MySQL 8.0 packages)

Published on August 31st 2020 - last updated on February 4th 2022 - Listed in MySQL Database Linux Ubuntu - 9 comments

Digital TV recording (even scheduled) made easy with Libreelec, Kodi and Tvheadend

Published on August 29th 2020 - Listed in Multimedia Linux Kodi - 2 comments

Linux distribution and release discovery in Ansible - and how to handle no ansible_distribution for Ubuntu 20.04

Published on August 28th 2020 - Listed in Ansible Linux - 0 comments

Syslog-NG in container stopped working: No space left on device /dev

Published on August 25th 2020 - last updated on April 16th 2024 - Listed in LXC Linux Containers - 1 comments

Bugfix release 1.9.1 of monitoring plugin check_es_system fixes regression in read only check

Published on August 24th 2020 - Listed in Monitoring Elasticsearch - 0 comments

PowerDNS master slave replication stopped working due to AWS Elastic IP mysteriously gone

Published on August 19th 2020 - Listed in PowerDNS DNS AWS Cloud - 0 comments

500 Internal Server Error served by Nginx reverse proxy due to worker_connections are not enough

Published on August 14th 2020 - Listed in Nginx - 0 comments

Error on Tomcat start java.sql.SQLException: The server time zone value CEST is unrecognized after updating MySQL JDBC connector

Published on August 11th 2020 - last updated on August 12th 2020 - Listed in Tomcat Atlassian Database - 0 comments

Crucial MX500 SSD drive dead after 8650 hours

Published on August 10th 2020 - Listed in Hardware Linux Monitoring - 0 comments

Upgrading Icinga2 from 2.10 to 2.12 on Debian Stretch fails due to missing backports

Published on August 7th 2020 - Listed in Icinga Monitoring Linux - 1 comments

Upgrading Roundcube from 1.3.x to 1.4.x and testing the new responsive skin (Elastic)

Published on July 31st 2020 - last updated on August 1st 2020 - Listed in Internet Cloud Mail Roundcube - 0 comments

When the replacement SSD drive is the same model - but with less capacity

Published on July 28th 2020 - last updated on July 30th 2020 - Listed in Hardware Linux - 0 comments

Release 1.9 of monitoring plugin check_es_system adds Elasticsearch cluster name in status check output

Published on July 23rd 2020 - Listed in Monitoring Elasticsearch - 0 comments

Leaving a party without saying bye: Western Digital Green SSD dead without pre-fail indications

Published on July 21st 2020 - Listed in Hardware Monitoring Linux - 0 comments

Speed comparison PHP 7.0 vs. 7.2 vs. 7.4 using MySQL PDO connection

Published on July 21st 2020 - Listed in PHP Linux Database - 0 comments

Grafana dashboard behind reverse proxy not showing graph but shows error 414 Request-URI Too Large

Published on July 14th 2020 - Listed in Nginx Grafana Monitoring - 0 comments

New version of check_esxi_hardware available: Two minor fixes

Published on July 10th 2020 - Listed in VMware Hardware Monitoring Virtualization - 0 comments

Automatic ticket unlocking in OTRS and Znuny 6.x

Published on July 9th 2020 - last updated on December 19th 2022 - Listed in OTRS - 0 comments

Implementing Swiss Payments Code (SPC) and QR code invoicing with Invoice Ninja

Published on June 30th 2020 - last updated on May 23rd 2022 - Listed in Internet Coding Personal - 13 comments

kubectl shows error You must be logged in to the server (Unauthorized) after Kubernetes upgrade

Published on June 30th 2020 - Listed in Kubernetes Containers Rancher - 1 comments

Kubernetes clusters and their Achilles heels: etcd, its fault tolerance and working it in two location data centers

Published on June 29th 2020 - Listed in Rancher Kubernetes Containers - 0 comments

How to create automatic snapshots (backups) of EC2 storage volumes using Data Lifecycle Manager

Published on June 22nd 2020 - Listed in AWS Cloud Backup - 0 comments

New release 1.3.0 of monitoring plugin check_rancher2 adds parameter to ignore node status(es)

Published on June 17th 2020 - Listed in Kubernetes Rancher Containers Monitoring - 0 comments

Create SLA availability statistics and reports from Icinga 2 monitoring (in Icingaweb and Thruk)

Published on June 15th 2020 - Listed in Monitoring Icinga - 0 comments

Release 1.8.1 of monitoring plugin check_es_system fixes bug in readonly check

Published on June 12th 2020 - Listed in Monitoring Elasticsearch - 0 comments

Monitoring expiration dates of all ssl/tls certificates in the chain (intermediate and root ca)

Published on June 10th 2020 - Listed in SSL TLS Linux Monitoring Internet Security - 0 comments

New release of check_esxi_hardware introduces new parameters to define SSL/TLS protocol and ignore chassis intrusion alerts

Published on June 5th 2020 - Listed in Hardware Monitoring Virtualization VMware - 0 comments

Bugfix release 6.7.1 of monitoring plugin check_smart available

Published on June 2nd 2020 - Listed in Hardware Monitoring - 0 comments

Logstash to Logstash log forwarding using the Lumberjack output plugin

Published on May 28th 2020 - Listed in ELK Elasticsearch Filebeat Logstash - 5 comments

New release 1.2.3 of monitoring plugin check_rancher2 is available

Published on May 25th 2020 - Listed in Kubernetes Rancher Containers Monitoring - 0 comments

Upgrading Filebeat from 5.x to 7.x and Logstash from 5.x to 6.x and circumvent the type field problem

Published on May 20th 2020 - Listed in ELK Elasticsearch Filebeat Logstash - 0 comments

check_mongodb returns python error on MongoDB 4.x database size check

Published on May 14th 2020 - Listed in Monitoring Database MongoDB - 0 comments

Keepalived virtual ip addresses gone lost after systemd update

Published on May 12th 2020 - Listed in Linux Systemd Network - 0 comments

Running Harbor registry (Docker repository) behind reverse proxy and solve docker push errors

Published on May 5th 2020 - Listed in Docker Kubernetes Containers Security - 2 comments

Monitoring plugin check_es_system 1.8 is out, allows usage of jq json parser

Published on May 2nd 2020 - Listed in Monitoring Elasticsearch - 0 comments

Unable to create KVM virtual machine: Host does not support domain type kvm for virtualization type hvm

Published on April 25th 2020 - last updated on January 23rd 2025 - Listed in Linux KVM Hardware Virtualization - 0 comments

Rancher 2: Kubernetes cluster provisioning fails with error response / is not a shared mount

Published on April 24th 2020 - Listed in Rancher Kubernetes Containers - 0 comments

How to create a visual status progress bar in a Google Sheets spreadsheet

Published on April 21st 2020 - last updated on August 27th 2021 - Listed in Internet Cloud Personal Office - 12 comments

Galera node unable to sync from donor: Requesting state transfer failed: -113(No route to host)

Published on April 21st 2020 - last updated on December 22nd 2020 - Listed in MySQL Database Galera - 2 comments

After Plesk upgrade, check_mailq returns fatal: User nagios(110) is not allowed to view the mail queue

Published on April 18th 2020 - Listed in Monitoring Linux - 0 comments

No such file or directory in /tmp although file exists and permissions are correct

Published on April 14th 2020 - Listed in Linux Monitoring Systemd - 3 comments

Unable to mount NTFS partitions on a drive which is part of an Intel isw raid (fakeraid)

Published on April 9th 2020 - Listed in Hardware Windows Linux - 0 comments

Bugfix release 1.7.2 of monitoring plugin check_es_system

Published on April 9th 2020 - Listed in Monitoring Elasticsearch - 0 comments

Apache 2.4 with mpm event freezing up (scoreboard is full) after reload due to bug

Published on April 6th 2020 - Listed in Apache Linux Monitoring - 0 comments

How to create automatic backups (snapshots) of an EC2 instance in AWS using Cloudwatch

Published on April 3rd 2020 - last updated on June 22nd 2020 - Listed in AWS Cloud Backup - 0 comments

How to detect Ghostcat AJP vulnerability (CVE-2020-1938) in Apache Tomcat

Published on April 2nd 2020 - Listed in Security Tomcat Linux Apache - 0 comments

Bugfix release 1.7.1 of monitoring plugin check_es_system

Published on April 1st 2020 - Listed in Monitoring Elasticsearch - 0 comments

Raspberry Pi 3b+ and Power over Ethernet: Comparing PoE hats and splitters

Published on April 1st 2020 - last updated on January 14th 2025 - Listed in Hardware - 1 comments

Using ELK to collect Nginx logs and show TLS version and ciphers used by HTTP clients

Published on March 27th 2020 - last updated on June 7th 2024 - Listed in ELK Filebeat Nginx Internet TLS Security - 0 comments

check_smart monitoring plugin now supports NVMe drives

Published on March 25th 2020 - Listed in Hardware Monitoring - 0 comments

How monitoring plugin check_nwc_health calculates network interface traffic speed

Published on March 19th 2020 - last updated on March 19th 2020 - Listed in Monitoring Network - 0 comments

How the X-Cache HTTP header information (HIT, MISS) was abused for targeted attacks on our systems

Published on March 13th 2020 - Listed in Security Internet Varnish Hacks - 4 comments

Finally: Improving Your PC Speed with a Solid State Drive (SSD)

Published on March 11th 2020 - Listed in Hardware - 0 comments

LXC container not getting configured static IP address because of netplan and disabled dhcp

Published on March 10th 2020 - Listed in LXC Linux Containers - 1 comments

Confluence page update through REST API not working anymore (error 501: Unable to save changes to unreconciled page)

Published on March 6th 2020 - Listed in Atlassian Linux - 0 comments

Lets Encrypt announced mass revoking of certain certificates on March 4 2020 - here is a quick check if you are affected

Published on March 4th 2020 - Listed in Internet Linux TLS SSL - 0 comments

Installing (compiling) jshon with libjansson on an old Linux (SLES 10)

Published on February 28th 2020 - Listed in Shell Linux - 0 comments

Nginx: Proper way to use different reverse proxy upstream based on user-agent without using if

Published on February 24th 2020 - Listed in Nginx - 3 comments

Handle Varnish errors with Edge Side Includes (ESI) content served from non-xml content

Published on February 21st 2020 - Listed in Varnish - 0 comments

Icinga 2: Apply rule for monitoring multiple Varnish instances and create a Grafana Varnish dashboard

Published on February 20th 2020 - Listed in Icinga Monitoring Varnish - 0 comments

Monitoring Varnish with check_varnish and create graphs from multiple varnishstat fields

Published on February 18th 2020 - last updated on June 5th 2024 - Listed in Monitoring Varnish - 2 comments

Python: Using argparse with either argument required by creating argument group with mutual exclusion

Published on February 18th 2020 - Listed in Python Coding Monitoring - 0 comments

PostgreSQL returns password authentication failed for user although password is correct

Published on February 14th 2020 - Listed in PostgreSQL Database - 1 comments

check_netio 1.5 is available: Added interface drops and optional tcp stats to performance data

Published on February 12th 2020 - Listed in Linux Monitoring - 0 comments

Version 0.3 of check_rpi_temp monitoring plugin changes the way temperature is read

Published on February 7th 2020 - Listed in Hardware Linux Monitoring - 0 comments

VMware: Cannot extend virtual hard drive in vSphere UI, greyed out size - how to solve it and increase physical volume in Linux VM

Published on February 7th 2020 - Listed in VMWare Virtualization Linux - 0 comments

Icinga 2: How to create global custom variables and use them in apply rules

Published on February 4th 2020 - Listed in Icinga Monitoring - 0 comments

Bugfix release 1.2.2 of monitoring plugin check_rancher2 is available

Published on January 29th 2020 - Listed in Kubernetes Rancher Containers Monitoring - 0 comments

How to install Linux Mint 19.3 from USB stick and solve boot from USB issues

Published on January 24th 2020 - Listed in Linux Hardware - 0 comments

Unable to boot Knoppix 8.6 from USB stick on a Dell Latitude? Check boot option in BIOS!

Published on January 23rd 2020 - Listed in Linux Hardware - 0 comments

Letsencrypt certificate not renewed on Apache web server due to https redirect

Published on January 21st 2020 - Listed in Apache SSL TLS Linux - 0 comments

Raspberry Pi 3b+, Gigabit PoE switch and PoE splitter: An impossible setup? Nope!

Published on December 13th 2019 - Listed in Hardware Linux Network - 0 comments

HAProxy: How to use different HTTP Host header based on each backend server address

Published on December 11th 2019 - Listed in HAProxy Linux Elasticsearch ELK Cloud - 1 comments

How to install a custom recovery and LineageOS Android on Sony Xperia Tablet Z

Published on December 9th 2019 - last updated on February 16th 2024 - Listed in Android - 6 comments

HAProxy in Ubuntu 18.04 Docker image not starting: cannot bind UNIX socket

Published on December 4th 2019 - last updated on September 1st 2022 - Listed in Docker HAProxy Linux Kubernetes Containers - 7 comments

Monitoring plugin check_smart version 6.6.1 available: Fix deprecated warning

Published on December 4th 2019 - Listed in Monitoring Hardware - 0 comments

Convert movies/clips to VTech Kidizoom Touch 5.0 video format using ffmpeg

Published on December 2nd 2019 - Listed in Multimedia Linux Personal - 6 comments

check_smart 6.6 is out: Multiple drives check using -g parameter now support 3ware and cciss controllers

Published on November 29th 2019 - Listed in Monitoring Hardware - 0 comments

First steps with Github workflows (actions) for simple code/syntax validation

Published on November 25th 2019 - Listed in Linux Coding Git - 0 comments

check_smart 6.5 available: Default attribute raw list defined

Published on November 22nd 2019 - Listed in Monitoring Hardware - 0 comments

Transfer your X11 (graphic) session to another user with xauth

Published on November 20th 2019 - Listed in Linux - 0 comments

Update Debian Jessie to Stretch and Zoneminder from 1.29 via 1.30 to 1.32 and how to fix update issues

Published on November 12th 2019 - Listed in Zoneminder Surveillance Linux - 0 comments

Rancher 2 Kubernetes certificates expired! How to rotate your expired certificates?

Published on November 8th 2019 - last updated on November 11th 2019 - Listed in Kubernetes Rancher Containers - 2 comments

Monitoring plugin check_es_system 1.7 released: Added check to verify Elasticsearch cluster master node

Published on November 4th 2019 - Listed in Elasticsearch Monitoring ELK - 0 comments

Blacklisted on bl.emailbasura.org? Yet another DNSBL blacklist is gone.

Published on October 30th 2019 - Listed in Monitoring Mail Internet - 0 comments

Using NSClient++ and NRPE to run local WMI queries on Windows hosts

Published on October 30th 2019 - Listed in Monitoring Windows - 2 comments

Monitoring plugin check_smart 6.4 released: Independence and new quiet parameter

Published on October 29th 2019 - last updated on October 29th 2019 - Listed in Hardware Monitoring - 0 comments

Quick EC2 instance type change using aws command line only

Published on October 22nd 2019 - Listed in AWS - 0 comments

check_smart 6.3 now allows to completely ignore SMART attributes

Published on October 1st 2019 - Listed in Monitoring Hardware - 0 comments

Kibana throws error X of Y shards failed on visualizations and dashboards

Published on September 30th 2019 - Listed in ELK Elasticsearch Filebeat Observability - 0 comments

Introducing monitoring plugin check_rpi_temp to measure and check Raspberry Pi board temperature

Published on September 30th 2019 - Listed in Monitoring Hardware - 0 comments

How to use the Docker host IP address within an application container (and allow communication across clusters)

Published on September 25th 2019 - last updated on September 26th 2019 - Listed in Docker Rancher Containers Linux - 0 comments

Galera cluster unable to sync SST: xtrabackup checkpoints missing, failed innobackupex on donor

Published on September 23rd 2019 - last updated on November 12th 2024 - Listed in MariaDB Database Galera - 0 comments

Google not indexing Worpdress WPML translated pages - marked as duplicate (but they are not duplicates!)

Published on September 17th 2019 - Listed in Wordpress Internet - 1 comments

Boosting check_haproxy monitoring plugin to ignore backend(s), add bytes in/out to performance data

Published on September 17th 2019 - last updated on December 8th 2021 - Listed in HAProxy Monitoring - 2 comments

Kubernetes upgrade through Rancher gone bad: Lost DNS after upgrading 1.13 to 1.14.

Published on September 12th 2019 - last updated on September 13th 2019 - Listed in Kubernetes Rancher Containers - 0 comments

Elasticsearch rejected execution of processing of BulkShardRequest or: monitoring thread pools with check_es_system v 1.6!

Published on September 9th 2019 - Listed in Elasticsearch Monitoring ELK - 2 comments

Monitoring plugin check_es_system 1.5.1 released, fixes bug in Elasticsearch cluster health lookup

Published on September 5th 2019 - Listed in Elasticsearch Monitoring ELK - 0 comments

Cannot print or open System Settings Printers anymore in Linux Mint

Published on September 4th 2019 - Listed in Linux Hardware Office - 0 comments

Monitoring plugin check_rancher2 version 1.2.0 released

Published on September 3rd 2019 - Listed in Rancher Monitoring Kubernetes - 0 comments

How to upgrade Kubernetes version in a Rancher 2 managed cluster

Published on August 28th 2019 - last updated on February 12th 2021 - Listed in Kubernetes Rancher Docker Containers - 7 comments

First steps with Consul and how to interpret communication errors between nodes

Published on August 27th 2019 - Listed in Consul Linux - 0 comments

Install LXC from upstream source on Ubuntu 18.04 Bionic

Published on August 24th 2019 - Listed in LXC Linux - 0 comments

Monitoring plugin check_mysql_slavestatus now supports mysql option file, socket (and more updates)

Published on August 22nd 2019 - Listed in MySQL MariaDB Database Monitoring - 0 comments

Comparing Galera cluster wsrep sst methods rsync vs. mariabackup

Published on August 20th 2019 - last updated on December 22nd 2020 - Listed in Database MySQL MariaDB Galera - 0 comments

Version 6.2 of monitoring plugin check_smart allows quicker identification of drives with problems

Published on August 19th 2019 - Listed in Hardware Monitoring Linux BSD - 0 comments

Mass file renaming in Bash based on search/replace or regular expressions

Published on August 19th 2019 - last updated on January 17th 2024 - Listed in Bash Linux Shell - 0 comments

Wordpress keeps flashing updating button when updating pages using WPML Multilingual CMS

Published on August 17th 2019 - Listed in Wordpress PHP - 0 comments

Docker container filesystem running out of space - how to find out which container to blame and handle large container json logs

Published on August 15th 2019 - Listed in Linux Rancher Containers Docker - 1 comments

Cannot start AWS EC2 instance after changing instance type: Ensure that your instance is enabled for ENA

Published on August 13th 2019 - Listed in AWS Linux - 2 comments

I am an egg boiler, too, said the hard drive and caused performance issues

Published on August 8th 2019 - Listed in Hardware Linux Monitoring - 0 comments

Troubleshooting (and solving) high load spikes and timeouts on Varnish using backend with ESI

Published on August 2nd 2019 - last updated on August 7th 2019 - Listed in Varnish Linux - 0 comments

Windows 10 and Server 2016 clients block access to (Samba) shares with public guest account: Technical analysis and workaround for event 31017

Published on July 22nd 2019 - Listed in Windows Linux Security Samba - 4 comments

How to protect your mailbox from spammers using only digit domains with SpamAssassin

Published on July 12th 2019 - Listed in Mail Linux - 0 comments

Using check_win_net_usage monitoring plugin with Windows host running with German language

Published on July 8th 2019 - Listed in Monitoring Windows - 0 comments

Change call ring duration before forwarding to Combox (Voicemail) for Swisscom and M-Budget Mobile

Published on July 8th 2019 - Listed in Android Personal - 0 comments

How to monitor Salesforce Cloud and integrate into your monitoring software

Published on July 5th 2019 - last updated on August 2nd 2019 - Listed in Monitoring Internet - 0 comments

Local users becoming root using su without password authentication due to wrong PAM config

Published on July 4th 2019 - Listed in Linux Security - 1 comments

Dell support links updated in check_esxi_hardware and new Python on Windows install guide

Published on July 2nd 2019 - Listed in Windows VMware Virtualization Hardware Monitoring - 0 comments

How we successfully deflected a layer 7 DDOS attack with Nginx and GeoIP

Published on June 27th 2019 - Listed in Nginx Internet Security - 0 comments

Version 1.5 of check_es_system adds monitoring for read-only indexes in Elasticsearch

Published on June 26th 2019 - Listed in Monitoring Elasticsearch Icinga Nagios ELK - 0 comments

New version 1.4 of check_netio allows to check for interface errors

Published on June 21st 2019 - Listed in Monitoring Linux Icinga Nagios - 0 comments

AWS EC2 instance scheduled for retirement: Panic? No panic (for EBS volumes)!

Published on June 21st 2019 - Listed in AWS Internet - 0 comments

Create a persistent data volume from NFS share for Docker containers in Rancher 1.6

Published on June 13th 2019 - Listed in Rancher Docker Containers NFS - 2 comments

Change InfluxDB query to include case insensitive matches in a Grafana dashboard variable

Published on June 13th 2019 - Listed in Monitoring Grafana Influx - 2 comments

check_smart v 6.1 allows using pseudo device /dev/bus/N

Published on June 12th 2019 - Listed in Monitoring Hardware - 0 comments

Replace hard or solid state drive with a bigger one and grow software (mdadm) raid

Published on June 7th 2019 - last updated on April 25th 2022 - Listed in Linux Hardware - 6 comments

Major release: check_smart plugin now allows multi attribute checks, supports multiple warning thresholds

Published on June 4th 2019 - Listed in Monitoring Icinga Nagios Perl Hardware - 0 comments

From strings to arrays to hashes and how to view the values in Perl

Published on June 4th 2019 - Listed in Perl Coding - 0 comments

Terminator terminal suddenly inserting each character twice when broadcasting to multiple windows

Published on June 3rd 2019 - Listed in Linux Internet Shell - 26 comments

After Ubuntu update from Trusty to Xenial, disk filled up by rsyslog log due to wrong logrotate config

Published on May 31st 2019 - Listed in Linux - 0 comments

Blacklisted on bl.spamcannibal.org? Yet another DNSBL blacklist is gone.

Published on May 31st 2019 - Listed in Mail Internet Monitoring - 2 comments

Debugging a HTTP 400 Bad Request error in Nginx leads to too large headers

Published on May 28th 2019 - last updated on April 16th 2021 - Listed in Nginx HAProxy Internet - 1 comments

How to monitor MySQL or MariaDB Galera Cluster writes and avoid deadlocks

Published on May 24th 2019 - last updated on December 22nd 2020 - Listed in Database MySQL Monitoring Galera - 0 comments

Setting up a LXC host on Ubuntu 18.04 in a VMware ESXi virtual machine environment

Published on May 22nd 2019 - Listed in LXC VMware Linux Virtualization Containers - 0 comments

PowerDNS SOA serial is not updated after a zone change in Opera DNS UI

Published on May 16th 2019 - last updated on May 17th 2019 - Listed in PowerDNS DNS - 2 comments

Login using Active Directory in Atlassian Jira fails with LDAP: error code 1

Published on May 16th 2019 - Listed in Linux Atlassian - 0 comments

Fix a broken python3.5 package upon Ubuntu upgrade to Bionic

Published on May 15th 2019 - last updated on March 31st 2022 - Listed in Linux Ubuntu - 0 comments

Debian Wheezy LXC container not running on Stretch host with Kernel 4.18 bpo anymore (a vsyscall story)

Published on May 13th 2019 - last updated on July 2nd 2021 - Listed in Linux LXC Security Containers - 0 comments

Hard drive to SSD upgrade on a HP 250 G5 notebook

Published on May 11th 2019 - last updated on May 11th 2019 - Listed in Hardware Windows Linux - 1 comments

check_esxi_hardware now supports regular expressions for elements in ignore list

Published on May 10th 2019 - Listed in VMware Virtualization Hardware Monitoring - 0 comments

Nginx socket() failed (24: Too many open files)

Published on May 9th 2019 - last updated on November 28th 2024 - Listed in Nginx Linux - 8 comments

Create an animated gif image from still images on the cli using imagemagick

Published on May 2nd 2019 - last updated on October 31st 2019 - Listed in Linux Multimedia Surveillance - 0 comments

Monitoring plugin check_es_system 1.4 released

Published on April 26th 2019 - Listed in Monitoring Elasticsearch Icinga Nagios ELK - 0 comments

Elasticsearch: Shards fail to allocate due to maximum number of retries exceeded

Published on April 5th 2019 - Listed in ELK Elasticsearch Linux - 1 comments

Monitoring plugin check_es_system 1.3 released

Published on April 3rd 2019 - Listed in Monitoring Elasticsearch Icinga Nagios ELK - 0 comments

Docker logging with GELF using tcp: The good, the bad, the ugly

Published on April 3rd 2019 - Listed in Docker Containers ELK Logstash - 3 comments

PowerDNS Master Slave DNS Replication with MySQL backend

Published on April 1st 2019 - Listed in DNS PowerDNS Linux - 11 comments

PowerDNS Authoritative DNS Server 4.1 with MySQL backend on Ubuntu 18.04

Published on March 26th 2019 - last updated on April 1st 2019 - Listed in DNS Linux Ubuntu PowerDNS - 2 comments

How to install and use check_netapp_ontap plugin to monitor NetApp filer

Published on March 22nd 2019 - last updated on March 3rd 2023 - Listed in Monitoring Icinga Nagios Perl Hardware - 4 comments

Letsencrypt certificate renewal behind http proxy fails with unexpected error: bad handshake

Published on March 18th 2019 - Listed in SSL TLS Security Internet OSSEC - 0 comments

New authoritative DNS server setup with user interface in 2019 (a comparison)

Published on March 15th 2019 - Listed in DNS Linux Ubuntu PowerDNS - 2 comments

InfluxDB backup on localhost fails with error: failed copy backup to file: err=

Published on March 14th 2019 - last updated on March 14th 2019 - Listed in Database Influx - 0 comments

The more than 10 year challenge: The blog has a new (responsive) face!

Published on March 11th 2019 - Listed in Personal Internet HTML - 0 comments

Investigating HTTP server response (json) is cut/incomplete before the end

Published on March 8th 2019 - Listed in Nginx Linux Internet - 1 comments

Create a thumbnail in PHP with imagemagick and rename accordingly

Published on March 7th 2019 - last updated on March 13th 2019 - Listed in PHP - 0 comments

Unique sorting of multiple words in string in PHP

Published on March 3rd 2019 - Listed in PHP - 0 comments

Updating Ubuntu with cross versions on LXC hosts and containers: Watch the gotchas!

Published on February 28th 2019 - last updated on April 29th 2019 - Listed in Linux Ubuntu LXC Containers - 0 comments

Major update on Elasticsearch monitoring plugin check_es_system!

Published on February 20th 2019 - Listed in Monitoring Elasticsearch Icinga Nagios - 0 comments

LXC 2.0 container not starting on Debian 9 Stretch when using cgroup limits

Published on February 18th 2019 - Listed in LXC Linux - 0 comments

Upgrade Rancher 2 version on HA management cluster with helm

Published on February 14th 2019 - last updated on January 11th 2023 - Listed in Rancher Docker Kubernetes Containers - 0 comments

How to solve Rancher 1.x service stuck in removing (in progress)

Published on February 13th 2019 - last updated on March 13th 2019 - Listed in Rancher Docker Linux Database MySQL - 1 comments

Getting the EDIMAX EW-7811UN to work with Linux Mint 18.1

Published on February 11th 2019 - last updated on December 4th 2019 - Listed in Linux Network Wireless Hardware - 0 comments

It is 2019, time to upgrade your Ubuntu 14.04 Trusty machines!

Published on January 30th 2019 - Listed in Linux - 0 comments

Elasticsearch ignored disk watermark settings and enforced read only index

Published on January 28th 2019 - Listed in ELK Elasticsearch Linux - 1 comments

HAProxy backend server behind AWS LB remains down with HTTP 503

Published on January 25th 2019 - Listed in HAProxy Linux Internet AWS Cloud - 0 comments

How to play an audio file on the command line or as a cron job in Linux

Published on January 22nd 2019 - Listed in Linux Multimedia - 2 comments

Investigating high load on Icinga2 monitoring (caused by browser accessing Nagvis)

Published on January 21st 2019 - last updated on March 13th 2019 - Listed in Icinga Monitoring - 0 comments

Application (Docker/Kubernetes) containers and STDOUT logging

Published on January 15th 2019 - Listed in Docker Containers Linux ELK - 1 comments

Outages in the Cloud. Whom to blame and how to prove it?

Published on January 11th 2019 - last updated on February 1st 2025 - Listed in Internet Linux Network Monitoring Influx Grafana Observability - 4 comments

Monitoring plugin check_smart 5.11.1 released

Published on January 8th 2019 - Listed in Monitoring Hardware Linux BSD Icinga Nagios - 0 comments

SSL TLS SNI certificate monitoring with Icingaweb2 x509 module

Published on January 7th 2019 - last updated on November 20th 2020 - Listed in Monitoring SSL TLS Icinga - 2 comments

Linux going AMD Ryzen with Debian 9 (Stretch)

Published on December 31st 2018 - last updated on July 21st 2020 - Listed in Hardware Linux - 1 comments

Monitoring plugin check_smart 5.11 available, introducing exclude list

Published on December 28th 2018 - Listed in Monitoring Hardware Linux BSD Icinga Nagios - 0 comments

Reduce the number of shards of an Elasticsearch index (and template)

Published on December 27th 2018 - last updated on October 1st 2021 - Listed in ELK Elasticsearch - 1 comments

Monitoring plugin check_netio 1.3 released

Published on December 21st 2018 - Listed in Monitoring Linux Network - 0 comments

Regex != regex in sed (or: replacing digits in sed)

Published on December 14th 2018 - Listed in Shell Linux Coding - 0 comments

How to manually clean up Zoneminder events (and respect archived events)

Published on December 14th 2018 - last updated on October 17th 2020 - Listed in Zoneminder Surveillance Linux Security - 4 comments

Monitoring plugin check_lxc 0.6.3 released

Published on December 5th 2018 - Listed in Monitoring Linux Icinga LXC Containers - 0 comments

Logstash gelf output plugin gone after udpate

Published on November 28th 2018 - Listed in ELK Logstash - 1 comments

How to create a new admin user in a clustered CouchDB

Published on November 21st 2018 - Listed in CouchDB Database - 0 comments

ELK stack not sending notifications anymore because of DNS cache

Published on November 20th 2018 - Listed in ELK Java DNS - 0 comments

Mounting NFS export suddenly does not work anymore - blame systemd

Published on November 15th 2018 - Listed in Linux Systemd NFS - 0 comments

Icinga2-classicui is gone after installing Icinga2 2.10

Published on November 14th 2018 - Listed in Icinga Monitoring - 0 comments

Creating an InfluxDB asynchronous replication using subscription service

Published on November 13th 2018 - last updated on February 20th 2023 - Listed in Database Influx Monitoring Icinga - 1 comments

MariaDB Galera Cluster: When the data is in sync but the query results differ

Published on November 9th 2018 - Listed in MySQL MariaDB Database Galera - 0 comments

Monitoring plugin check_rancher2 1.0.0 available, leaving beta phase

Published on November 9th 2018 - Listed in Monitoring Icinga Containers Rancher - 0 comments

Different proxy_pass upstream depending on client ip address in Nginx

Published on October 26th 2018 - Listed in Nginx Internet Linux - 1 comments

Permission denied when writing on NTFS mount, even as root

Published on October 18th 2018 - Listed in Linux Windows - 1 comments

check_esxi_hardware now supports python3!

Published on October 2nd 2018 - Listed in Hardware Monitoring VMware - 0 comments

Grub2 install fails on USB drive with error: appears to contain a ufs1 filesystem

Published on September 28th 2018 - Listed in Linux - 0 comments

How to compare speed of USB flash pen drives (USB sticks)

Published on September 26th 2018 - last updated on December 1st 2019 - Listed in Hardware Linux - 0 comments

How to use kubectl on a Rancher 2 managed Kubernetes cluster

Published on September 21st 2018 - Listed in Docker Containers Linux Rancher - 0 comments

Adapt Roundcube managesieve plugin to dynamically lookup sieve host

Published on September 7th 2018 - Listed in PHP Mail Linux Roundcube - 0 comments

Install a newer Valgrind version on Ubuntu 14.04 using alternatives

Published on September 3rd 2018 - Listed in Linux - 1 comments

Install/Upgrade cmake 3.12.1 on Ubuntu 14.04 using alternatives

Published on September 3rd 2018 - last updated on June 6th 2019 - Listed in Linux - 2 comments

How to change check source in an Icinga 2 distributed master-master setup

Published on August 21st 2018 - last updated on January 23rd 2024 - Listed in Icinga Monitoring Network - 0 comments

Another way to append a text in sed using ampersand

Published on August 15th 2018 - Listed in Linux Shell Bash Coding - 3 comments

Ignore systemd log warning Failed to reset devices.list: Operation not permitted in OSSEC

Published on July 31st 2018 - Listed in Linux LXC OSSEC Security Systemd - 0 comments

LXC container in network reachable, but cannot ping between host and container

Published on July 27th 2018 - Listed in LXC Linux Network - 0 comments

Fix table increment counter in MariaDB or MySQL after manual row deletion

Published on July 24th 2018 - Listed in PHP MySQL MariaDB Database - 0 comments

Retrieving a value from XML document in Linux Bash

Published on July 24th 2018 - last updated on November 12th 2020 - Listed in Monitoring Linux Icinga Shell Coding - 0 comments

Installing check_vmware_esx.pl and VMware Perl SDK 6.7 on Ubuntu 16.04 Xenial

Published on July 20th 2018 - Listed in VMware Monitoring Icinga Linux Perl - 2 comments

Freeing up disk space from CouchDB - do not forget the views!

Published on July 19th 2018 - Listed in CouchDB Database DB Linux - 3 comments

Monitoring memory usage of a LXC container (comparing 1.x vs 2.x)

Published on July 18th 2018 - Listed in Monitoring Linux LXC Virtualization - 0 comments

How to create a persistent volume in Rancher 2.x from a NFS share

Published on June 27th 2018 - last updated on May 10th 2021 - Listed in Rancher Docker NFS Containers - 0 comments

Search field in Firefox is gone, how to get it back

Published on June 15th 2018 - last updated on February 24th 2022 - Listed in Internet - 0 comments

Ansible: Detect and differ between LXC containers and hosts

Published on June 13th 2018 - Listed in Linux Ansible LXC - 1 comments

/etc/rc.local does not exist anymore - but does it still work?

Published on June 11th 2018 - last updated on April 30th 2024 - Listed in Linux - 8 comments

Filesystem full because of Filebeat still hanging on to rotated log

Published on June 11th 2018 - Listed in Linux - 0 comments

Network config in Ubuntu 18.04 Bionic is now elsewhere and handled by netplan

Published on June 8th 2018 - Listed in Linux - 0 comments

Rancher 1.6: Github user not able to login (Internal Server Error)

Published on May 31st 2018 - Listed in Docker Rancher Linux DB Database MySQL Git - 0 comments

Quickly show character sets and collations of all tables in a MySQL database

Published on May 30th 2018 - last updated on September 29th 2020 - Listed in DB Database MySQL - 0 comments

Install Linux Mint 18.3 on software raid (mdraid) device

Published on May 26th 2018 - last updated on January 6th 2023 - Listed in Hardware Linux - 4 comments

Hardware Error: Parity error during data load. Or: Clean me!!!

Published on May 24th 2018 - Listed in Hardware Linux - 1 comments

How to build a generic Icinga2 service graph in Grafana using InfluxDB

Published on May 11th 2018 - Listed in Icinga Monitoring Grafana Influx Database - 2 comments

Monitoring plugin check_smart version 5.10 released

Published on May 8th 2018 - Listed in Nagios Icinga Monitoring Hardware - 0 comments

Lessons learned: Do not put stateful Minio into a Docker container

Published on May 7th 2018 - Listed in Linux Containers LXC Docker Minio - 0 comments

Rsnapshot error: /bin/rm: cannot remove ... Directory not empty

Published on May 4th 2018 - Listed in Linux - 0 comments

Monitoring plugin check_smart version 5.9 released

Published on April 29th 2018 - Listed in Nagios Icinga Monitoring Hardware - 0 comments

Galera node on Ubuntu 14.04 Trusty not joining after update to MariaDB 10.0.34

Published on April 25th 2018 - last updated on December 22nd 2020 - Listed in MySQL MariaDB Database DB Galera - 0 comments

New version 20180411 of check_esxi_hardware released

Published on April 11th 2018 - Listed in Monitoring Nagios Icinga Hardware VMware - 0 comments

Unable to download attachment from Gmail, how to get it anyway (by using Takeout)

Published on April 9th 2018 - Listed in Internet Linux Mail - 0 comments

Monitor dual storage (raid) controller on IBM x3650 M4

Published on April 6th 2018 - Listed in Hardware Linux Monitoring - 0 comments

Automatic SLA reporting from Icinga and push into Confluence page

Published on April 4th 2018 - last updated on March 6th 2020 - Listed in Icinga Monitoring Nagios Linux Atlassian - 2 comments

ArchiCAD 17 fails to install on Mac OS X 10.9 Mavericks

Published on April 3rd 2018 - Listed in Macintosh Personal Apple - 0 comments

Version 20180329 of check_esxi_hardware available (pywbem version lookup)

Published on March 31st 2018 - Listed in VMware Monitoring Icinga Nagios - 0 comments

Bash: date -d 1 month ago still shows the same month

Published on March 29th 2018 - Listed in Linux Shell Bash Coding - 0 comments

New version of check_couchdb_replication allows check of all replications

Published on March 26th 2018 - Listed in Database DB CouchDB Nagios Icinga Monitoring - 0 comments

Bash: Why is a multi-line output saved as one line in a variable?

Published on March 26th 2018 - Listed in Linux Shell Bash Coding - 6 comments

Windows: Monitoring of files or directories and alert when older than certain age

Published on March 21st 2018 - last updated on April 13th 2021 - Listed in Windows Monitoring Icinga Nagios - 0 comments

Mouse click not working after update of virtual Linux Mint 17.3

Published on March 19th 2018 - Listed in Linux - 0 comments

apt upgrade exits with error: package pkgname contains empty filename

Published on January 10th 2018 - Listed in Linux - 0 comments

New monitoring plugin check couchdb replication to monitor CouchDB replications

Published on January 8th 2018 - Listed in Nagios Icinga Monitoring Database CouchDB - 0 comments

New version of check_es_system plugin fixes authentication problems

Published on January 5th 2018 - Listed in Monitoring Nagios Icinga Elasticsearch DB Database - 0 comments

Install newer ninja-build (1.8.2) on Ubuntu 14.04 Trusty

Published on December 22nd 2017 - Listed in Linux - 4 comments

Install/Upgrade cmake 3.10.1 in Ubuntu 14.04 using alternatives

Published on December 22nd 2017 - Listed in Linux - 2 comments

ElasticSearch cluster stays red, stuck unassigned shards not being assigned

Published on December 19th 2017 - last updated on October 15th 2021 - Listed in ELK Linux Elasticsearch - 0 comments

How to monitor Windows disk space usage on a mounted drive without assigned letter

Published on December 18th 2017 - last updated on April 4th 2024 - Listed in Windows Monitoring Icinga Nagios - 0 comments

Recover a crashed MySQL or MariaDB InnoDB database from ibd files

Published on December 13th 2017 - Listed in Database MySQL MariaDB - 2 comments

Create separate measurement tables in InfluxDB for Icinga 2 NRPE checks

Published on December 12th 2017 - last updated on February 20th 2023 - Listed in Icinga Monitoring Influx Database - 3 comments

ElasticSearch stopped to assign shards due to low disk space

Published on December 12th 2017 - Listed in Linux ELK - 2 comments

Icinga2 graphing with InfluxDB and Grafana

Published on December 8th 2017 - last updated on April 25th 2024 - Listed in Icinga Monitoring Influx Database - 1 comments

icinga2-classicui shows Whoops error on new Icinga 2.8 install

Published on December 8th 2017 - Listed in Icinga Monitoring Linux - 0 comments

How to install Dell OpenManage 9.x and racadm on Ubuntu 16.04

Published on December 6th 2017 - last updated on July 14th 2021 - Listed in Hardware Monitoring Nagios Icinga - 0 comments

How to install a custom Android ROM on Sony Xperia Z2

Published on November 28th 2017 - Listed in Android - 2 comments

Cant kill a non-numeric process ID in check_vmware_esx plugin

Published on November 27th 2017 - Listed in Monitoring Nagios Icinga Hardware VMware - 0 comments

Monitoring multiple Varnish instances

Published on November 14th 2017 - Listed in Varnish Linux Monitoring Icinga Nagios - 0 comments

Wetek Play/Openelec Box update to LibreElec 8.2 features tvheadend wizard

Published on November 12th 2017 - Listed in Multimedia Kodi - 0 comments

Confused ElasticSearch refuses to insert data due to mapping conflict

Published on October 31st 2017 - Listed in Linux ELK Kibana Logstash Filebeat - 2 comments

XT Commerce http status 500 without any PHP errors

Published on October 31st 2017 - Listed in Internet PHP - 0 comments

Automatically cleaning up archived WAL files on a PostgreSQL server

Published on October 27th 2017 - Listed in DB Postgres PGSQL Database PostgreSQL - 7 comments

check_smart v5.8 now supports regex for MegaRaid interface

Published on October 19th 2017 - Listed in Monitoring Nagios Icinga Hardware - 0 comments

Nginx: Serve error pages from reverse proxy, not from upstream server

Published on September 21st 2017 - Listed in Internet Linux Nginx - 0 comments

Varnish panic / crash due to low workspace sizing

Published on September 18th 2017 - Listed in Varnish Linux - 0 comments

Linux Mint Dual Monitor Setup: Screens dark after login in Cinnamon

Published on September 15th 2017 - Listed in Linux - 0 comments

Increase JVM Heap Size Memory for ElasticSearch

Published on September 14th 2017 - Listed in ELK Linux - 0 comments

Analysing and troubleshooting Varnish traffic with varnishtop and varnishlog

Published on September 13th 2017 - last updated on March 5th 2020 - Listed in Varnish Linux - 0 comments

Solving _grokparsefailure on syslog entries in ELK stack

Published on September 12th 2017 - Listed in ELK Linux - 0 comments

Elastic X-Pack error after updating Logstash

Published on September 11th 2017 - Listed in ELK Linux - 0 comments

check_esxi_hardware new with --no-lcd parameter to ignore LCD alerts

Published on September 5th 2017 - Listed in Nagios Icinga Monitoring VMware - 0 comments

Handling different timezones of HAProxy logs in ELK stack

Published on August 28th 2017 - last updated on March 19th 2020 - Listed in Docker Rancher Linux ELK HAProxy Containers - 1 comments

Docker container syslog logs not appearing in ELK Kibana (different timezone)

Published on August 25th 2017 - Listed in Docker Linux ELK Observability - 0 comments

LXC Container not starting - no init runlevel in container

Published on August 23rd 2017 - Listed in Linux LXC - 0 comments

How to setup collaborative (parallel) editing in Atlassian Confluence

Published on August 18th 2017 - last updated on February 6th 2020 - Listed in Linux Internet Atlassian - 0 comments

Install and configure Elastic Filebeat through Ansible

Published on August 11th 2017 - Listed in Linux ELK Kibana Logstash Filebeat Ansible - 2 comments

HTTP POST benchmarking / stress-testing an API behind HAProxy with siege

Published on August 3rd 2017 - Listed in Internet Linux HAProxy - 1 comments

check_mssql_health: Monitoring MSSQL with SQL query and negative thresholds

Published on July 28th 2017 - Listed in Windows Monitoring Database - 0 comments

How to monitor a PostgreSQL replication

Published on July 26th 2017 - last updated on June 15th 2021 - Listed in DB Postgres Database Monitoring Icinga Nagios - 3 comments

check_nwc_health: rumms - UNKNOWN no interfaces

Published on July 20th 2017 - Listed in Network Icinga Nagios Monitoring - 0 comments

Presenting new monitoring plugin: check_lxc

Published on July 19th 2017 - Listed in Linux Monitoring Nagios Icinga LXC - 1 comments

Varnish vcl reload not working with SystemD on Ubuntu 16.04

Published on July 18th 2017 - Listed in Linux Varnish Systemd - 0 comments

Count backwards with seq in Linux

Published on July 12th 2017 - Listed in Linux - 0 comments

Gandi domain registrar hacked?

Published on July 7th 2017 - Listed in Internet DNS - 0 comments

55700 hours or the grey old age of a SATA drive

Published on July 7th 2017 - Listed in Hardware - 0 comments

Samsung UE55KU6400 defect picture when using external sources

Published on July 4th 2017 - Listed in Multimedia Personal - 0 comments

Permissions of log files automatically being reset by syslog

Published on June 27th 2017 - Listed in Linux Mail - 2 comments

Magento2 Load Balancer Health Check for AWS ELB

Published on June 26th 2017 - Listed in AWS Internet PHP MySQL DB Linux - 0 comments

apt-get update error: Could not get lock (SystemD and unattended APT)

Published on June 23rd 2017 - last updated on April 24th 2021 - Listed in Linux Systemd - 0 comments

Debian 9 Stretch (and newer) rebuilt Nagios NRPE Server (with command args and SSL compatibility)

Published on June 22nd 2017 - last updated on September 21st 2023 - Listed in Linux Monitoring Nagios Icinga - 8 comments

Cannot boot Linux Mint 18.1 after running apt-get upgrade

Published on June 19th 2017 - Listed in Linux - 0 comments

AWS EC2 instance unreachable after reboot ([Errno 101])

Published on June 16th 2017 - Listed in Linux Internet AWS - 4 comments

Easy FX currency converter in PHP

Published on June 14th 2017 - Listed in PHP - 0 comments

Rename jpeg files to contain the date the picture was taken

Published on May 6th 2017 - last updated on August 4th 2019 - Listed in Windows Linux Multimedia Mac - 0 comments

Ubuntu 16.04 reboot and shutdown hanging on LVM metadata daemon

Published on May 5th 2017 - Listed in Linux LVM - 0 comments

Monitor a PostgreSQL database in AWS RDS with check_postgres

Published on April 27th 2017 - Listed in Nagios Icinga Monitoring AWS - 0 comments

Empty page returned from Nginx with fastcgi caching (HEAD vs GET)

Published on April 21st 2017 - Listed in Linux Nginx - 2 comments

Nginx compile fails with fatal error: ld terminated with signal 9

Published on April 21st 2017 - Listed in Linux Nginx - 0 comments

Firmware-Upgrade of a Dahua IPC-HFW1320S network camera

Published on April 18th 2017 - last updated on October 30th 2024 - Listed in Hardware Security Network Surveillance - 1 comments

Unable to delete application link in JIRA (NullPointerException: consumer)

Published on April 3rd 2017 - Listed in Linux Database Windows Atlassian - 0 comments

Galera Arbitrator garbd not starting: Exception in creating receive loop

Published on March 29th 2017 - last updated on December 22nd 2020 - Listed in MySQL DB Database MariaDB Galera - 1 comments

Tackling Confluence migration issues (Windows+MSSQL to Linux+MariaDB)

Published on March 24th 2017 - Listed in Linux Database MySQL Windows Atlassian - 0 comments

Unbound DNS not serving reverse lookup for internal addresses

Published on March 20th 2017 - Listed in Linux DNS - 2 comments

resolvconf is not always helpful, especially in a chroot rescue system

Published on February 22nd 2017 - Listed in Linux - 0 comments

MySQL InnoDB: Operating system error number 13 in a file operation

Published on February 21st 2017 - Listed in Linux Database MySQL - 0 comments

UEFI boot does not like software raid at all (GRUB Error 17)

Published on February 20th 2017 - Listed in Linux Hardware Rant - 0 comments

Unbound DNS server behind a VIP - solving reply from unexpected source

Published on February 17th 2017 - Listed in Linux - 5 comments

Get Unbound DNS lookups working in Ubuntu 16.04 Xenial, understand SERVFAIL

Published on February 16th 2017 - Listed in Linux DNS - 3 comments

The curious case of curl, SSL SNI and the HTTP Host header

Published on February 13th 2017 - last updated on May 29th 2019 - Listed in Internet Linux SSL TLS - 0 comments

Using check_netio monitoring plugin on CentOS 7 or RHEL 7

Published on January 27th 2017 - Listed in Linux Monitoring Nagios Icinga - 2 comments

Custom partitioning on new Red Hat Enterprise Linux 7 setup

Published on January 26th 2017 - Listed in Linux Rant - 0 comments

Custom HTTP headers not showing up on 404 response status

Published on January 23rd 2017 - last updated on April 22nd 2022 - Listed in Linux Nginx - 0 comments

Rancher: Error response from daemon /usr/bin/dockerd (deleted)

Published on January 23rd 2017 - Listed in Linux Rancher Containers Docker - 3 comments

grub-install: warning: Couldnt find physical volume

Published on January 23rd 2017 - Listed in Linux - 1 comments

Encrypted http connections (https) use four times more CPU resources

Published on January 19th 2017 - Listed in Internet Linux TLS SSL - 0 comments

Rename video files to filename with recorded date using mediainfo

Published on January 16th 2017 - last updated on March 9th 2025 - Listed in Personal Linux Multimedia - 6 comments

Simple HTTP check monitoring plugin on Windows (check_http alternative)

Published on January 5th 2017 - Listed in Windows Monitoring Nagios Icinga - 6 comments

Creating custom PNP4Nagios templates in Icinga 2 for NRPE checks

Published on January 3rd 2017 - Listed in Nagios Icinga Monitoring - 0 comments

check_esxi_hardware and pywbem 0.10.x tested

Published on December 21st 2016 - Listed in Nagios Icinga Monitoring VMware - 0 comments

The Docker Dilemma: Benefits and risks going into production with Docker

Published on December 16th 2016 - Listed in Docker Virtualization Linux Containers - 2 comments

Install LineAge 14 (Android 7 Nougat) on Samsung Galaxy S5 Plus G901F

Published on December 12th 2016 - Listed in Android - 14 comments

PHP: sys_temp_dir is not the same as upload_tmp_dir, it stays /tmp

Published on December 9th 2016 - Listed in PHP - 0 comments

TVHeadend Mutex Scan Settings for Cablecom and Thurcom (Switzerland)

Published on December 6th 2016 - Listed in Personal Hardware Multimedia Kodi - 0 comments

Magento shop 1.9.2.4 hacked, possibly through Connect Manager

Published on December 5th 2016 - Listed in Hacks PHP - 0 comments

Downgrade Mac OS X on a new iMac? Forget about it!

Published on November 21st 2016 - Listed in Personal Hardware Mac Apple - 0 comments

Allow SSH access based on GeoIP country

Published on November 3rd 2016 - last updated on November 13th 2019 - Listed in Linux Security - 2 comments

Tracing a DirtyCow exploit hack several years back to 2007

Published on October 28th 2016 - Listed in Hacks Linux Internet - 0 comments

Reset (clean up) a Rancher Docker Host / Kubernetes Node

Published on October 28th 2016 - last updated on March 4th 2025 - Listed in Linux Virtualization Containers Rancher Cloud Kubernetes - 0 comments

Play a multimedia file in VLC as cron job

Published on October 24th 2016 - Listed in Linux - 1 comments

How to fix a broken or half installed Debian deb package

Published on October 14th 2016 - last updated on September 26th 2024 - Listed in Linux - 0 comments

New version of check_esxi_hardware supports pywbem 0.9.x

Published on October 13th 2016 - Listed in Nagios Icinga Monitoring VMware - 18 comments

Configure Varnish custom settings on Debian 8 Jessie and Ubuntu 16.04 LTS

Published on October 13th 2016 - Listed in Linux Varnish - 0 comments

Ubuntu 16.04 xenial does not rotate nginx and rsyslog logfiles

Published on October 10th 2016 - Listed in Linux Nginx - 1 comments

Unable to load public key when encrypting data with openssl

Published on October 10th 2016 - Listed in Linux - 1 comments

Update MySQL table by appending text to existing column value

Published on October 6th 2016 - Listed in MySQL DB Database - 0 comments

monit unexpectedly restarted web application server due to http status

Published on October 6th 2016 - Listed in Linux Monitoring - 0 comments

XML validation command line on Windows server

Published on September 26th 2016 - Listed in Windows - 0 comments

Force Postfix to allow empty HELO/EHLO commands

Published on September 22nd 2016 - Listed in Mail Linux - 0 comments

Ubuntu Xenial root partition filling up constantly due to kernel updates

Published on September 20th 2016 - Listed in Linux - 1 comments

Headscratcher: Server should be SSL-aware but has no certificate configured

Published on September 14th 2016 - Listed in Linux - 0 comments

check_es_store is now check_es_system and also checks memory usage

Published on September 7th 2016 - Listed in Nagios Icinga Monitoring - 0 comments

Remove old and install new version of Dell OMSA on CentOS

Published on September 6th 2016 - Listed in Hardware Linux - 1 comments

AMD share prices in 2016: Doubting the so called financial technical analysts

Published on September 2nd 2016 - Listed in Personal Rant - 0 comments

Slow down central mail relay server but with domain exceptions

Published on August 30th 2016 - Listed in Mail Linux Internet - 0 comments

rsyslog not logging into /var/log/mail.log? Check permissions!

Published on August 22nd 2016 - Listed in Linux Mail - 1 comments

Testing multicast is working with omping

Published on August 10th 2016 - Listed in Linux Network - 0 comments

When the OS says you are old

Published on August 2nd 2016 - Listed in Linux Personal - 1 comments

Reviewing 6 months with Linux Mint 17.3 as desktop OS

Published on July 11th 2016 - Listed in Linux Personal - 0 comments

SD card of Raspberry Pi dead - after almost (or only?) a year runtime

Published on July 6th 2016 - Listed in Hardware Linux - 0 comments

Plugged wlan access point - no link on switch (BPDU Guard disabled port)

Published on June 30th 2016 - Listed in Network - 0 comments

How to extend virtual drive VMDK and physical volume (PV) in a LVM setup on a VMware VM

Published on June 28th 2016 - last updated on August 12th 2022 - Listed in Linux VMware LVM - 0 comments

Very slow VMware Perl SDK with newer Perl libwww-perl version (solved)

Published on June 21st 2016 - last updated on May 9th 2019 - Listed in VMware Linux Nagios Icinga Monitoring - 8 comments

Migrated web-application from PHP 5.4 to PHP 7: 3x faster!

Published on June 10th 2016 - Listed in PHP - 0 comments

Create a fake mail server to test mail functions in applications

Published on June 7th 2016 - Listed in Linux Mail - 0 comments

Raspberry Pi sd card issue after power outage (constant red led)

Published on June 7th 2016 - Listed in Hardware Linux - 0 comments

Presenting check_es_store plugin: Monitor ElasticSearch store (disk) usage

Published on June 2nd 2016 - Listed in Icinga Nagios Monitoring Internet - 0 comments

Limit http request methods in Nginx (authentication except for GET)

Published on May 31st 2016 - Listed in Nginx Linux - 0 comments

New version of check_esxi_hardware allows different CIM ports (NAT)

Published on May 31st 2016 - Listed in Nagios Icinga Monitoring VMware - 2 comments

Shopware shows content correctly but with http status 503

Published on May 30th 2016 - Listed in Internet - 0 comments

SpamAssassin stopped working? Check loopback interface!

Published on May 26th 2016 - Listed in Mail Linux - 0 comments

How to retrieve values from json output in Bash

Published on April 29th 2016 - last updated on October 15th 2021 - Listed in Linux Coding Shell - 0 comments

Amazon S3 bucket and Internet Explorer 11: HTTP 400 error because of umlaut

Published on April 29th 2016 - Listed in Windows Internet - 0 comments

Did you know Skype understands sed? Replace previous line with sed command!

Published on April 27th 2016 - Listed in Internet Linux - 0 comments

Avoid Ansible writing several times the same line in /etc/sudoers

Published on April 25th 2016 - Listed in Linux Ansible - 0 comments

Disable autostart of lxcbr0 on Ubuntu 16.04 xenial

Published on April 22nd 2016 - Listed in Linux LXC - 1 comments

check_disk on Ubuntu 16.04 xenial reports DISK CRITICAL: / not found

Published on April 22nd 2016 - Listed in Nagios Icinga Monitoring Linux - 0 comments

Downtime happens fast, especially if NIC (domain registry) deletes your domain by accident

Published on April 18th 2016 - Listed in Internet Personal DNS - 0 comments

Does an Ubuntu 16.04 (xenial) container run on a 14.04 (trusty) host?

Published on April 18th 2016 - Listed in LXC Linux - 2 comments

How to create global FTP message/banner/greeting with Pure-FTPd on Ubuntu Linux

Published on April 15th 2016 - last updated on February 10th 2023 - Listed in Linux - 0 comments

New version (20160411) of check_esxi_hardware available

Published on April 13th 2016 - Listed in Nagios Icinga Monitoring VMware - 0 comments

LXC 1.1.x is available on Debian Jessie now and update on lxc-start problem

Published on March 30th 2016 - Listed in LXC Linux - 0 comments

Debian Jessie: LXC Start not working (failed to determine fs type)

Published on March 29th 2016 - Listed in LXC Linux - 0 comments

Cannot install syslog-ng on Ubuntu 14.04 due to unmet dependencies

Published on March 23rd 2016 - Listed in Linux - 3 comments

rsnapshot on Debian Jessie not working when using ssh_args

Published on March 18th 2016 - Listed in Linux - 0 comments

systemd-journald stopped logging on CentOS 7 (Failed to write entry)

Published on March 17th 2016 - Listed in Linux Systemd - 0 comments

NRPE in Debian Jessie: Command arguments not working

Published on March 16th 2016 - Listed in Nagios Icinga Monitoring Linux - 9 comments

Create a LXC container in Debian Jessie without systemd

Published on March 14th 2016 - Listed in LXC Linux Systemd - 0 comments

Using PHP preg_replace to read NIC information from check_nwc_health

Published on March 4th 2016 - Listed in PHP - 0 comments

Accessing WMI through a firewall - which ports are required?

Published on March 2nd 2016 - Listed in Nagios Icinga Monitoring Windows Linux - 0 comments

Supervision of an application (daemon process) with monit

Published on February 26th 2016 - Listed in Linux - 0 comments

Force a new partition to start at a certain sector with parted

Published on February 24th 2016 - Listed in Linux - 1 comments

AMD Radeon on Windows 7: Sometimes white is yellow(-ish)

Published on February 24th 2016 - Listed in Windows Hardware - 0 comments

Use apt behind proxy - but do not use proxy for some repositories (DIRECT)

Published on February 19th 2016 - Listed in Linux - 1 comments

Move an iptables firewall rule up the chain before a reject rule

Published on February 4th 2016 - last updated on May 7th 2021 - Listed in Linux Security Network - 0 comments

The fight to find rpms for old Red Hat Linux servers

Published on February 2nd 2016 - Listed in Linux - 0 comments

check_disk_smb: Access Denied when monitoring share on old Samba server

Published on January 29th 2016 - last updated on March 17th 2022 - Listed in Nagios Icinga Monitoring Linux Samba - 0 comments

How to measure the data size (usage) of single tables or databases in MariaDB or MySQL

Published on January 27th 2016 - last updated on February 6th 2023 - Listed in Database MySQL MariaDB - 1 comments

Backup partition (ext4) running out of space? tune2fs to the rescue!

Published on January 14th 2016 - Listed in Linux - 0 comments

Connect with Pidgin to Lync 2013 in Linux Mint 17.3 (Ubuntu 14.04)

Published on January 13th 2016 - Listed in Linux Windows - 2 comments

Use WMI for monitoring auto-discovery on Windows Server

Published on January 11th 2016 - Listed in Monitoring Windows Icinga - 0 comments

Installing and use cmake 3.4.1 in Ubuntu 14.04 using alternatives

Published on January 7th 2016 - Listed in Linux - 5 comments

Joomla CMS 3.4.5 hacked through RCE vulnerability

Published on January 4th 2016 - Listed in Hacks Internet - 1 comments

Automatic php form validation with HTML5 (required)

Published on December 18th 2015 - Listed in Internet HTML PHP - 0 comments

check_win_net_usage now with network interface detection

Published on December 15th 2015 - Listed in Monitoring Icinga Nagios - 0 comments

Icinga 2: Define dynamic multiple parents dependency with apply rule

Published on December 11th 2015 - Listed in Monitoring Icinga Nagios - 2 comments

NagVis with LDAP authentication and automatic read-only (guest) view

Published on December 11th 2015 - Listed in Monitoring Nagios Icinga - 4 comments

check_disk on openSUSE 13.2: Permission denied on Samba mount

Published on December 10th 2015 - last updated on April 24th 2021 - Listed in Monitoring Nagios Icinga Linux Samba - 0 comments

Clone a private git repository with Ansible (using password prompt)

Published on December 2nd 2015 - Listed in Linux Ansible Git - 5 comments

Fix Raspberry Pi 2 boot issue after rpi-update

Published on December 1st 2015 - Listed in Linux - 0 comments

configure fails with config.status error cannot find input file Makefile.in

Published on November 27th 2015 - Listed in Linux - 0 comments

New version of check_equallogic (20151126) released

Published on November 26th 2015 - Listed in Nagios Icinga Monitoring - 0 comments

Ubuntu Desktop: Error resolving, name or service not known (but DNS works!)

Published on November 24th 2015 - Listed in Linux DNS - 0 comments

Nagiosgraph insert.pl: illegal attempt to update (minimum one second step)

Published on November 23rd 2015 - Listed in Nagios Icinga Monitoring - 0 comments

Icinga 2: Send SMS alerts only for CRITICAL status and its recoveries

Published on November 10th 2015 - Listed in Monitoring Nagios Icinga - 0 comments

Upgrading from openSUSE 12.3 to openSUSE Tumbleweed (FAIL)

Published on November 5th 2015 - Listed in Linux - 0 comments

How to integrate Nagiosgraph in Icinga 2

Published on November 4th 2015 - Listed in Monitoring Nagios Icinga - 0 comments

check_infoblox: New check type dhcpstat

Published on October 30th 2015 - Listed in Nagios Icinga Monitoring - 0 comments

sudo asks for password, although NOPASSWD is set in /etc/sudoers

Published on October 30th 2015 - Listed in Linux - 0 comments

Seafile client stuck in sync? Check for special characters in file names!

Published on October 27th 2015 - Listed in Windows Internet Seafile Cloud - 0 comments

HAProxy fails to dynamically lookup DNS of backend servers

Published on October 27th 2015 - Listed in HAProxy Linux - 0 comments

Presenting new monitoring plugin: check_infoblox for Infoblox appliances

Published on October 21st 2015 - Listed in Monitoring Nagios Icinga - 0 comments

awk: print last few elements of a line

Published on October 16th 2015 - Listed in Linux Coding Shell - 0 comments

How to play Age of Empires (AoE) Multiplayer in 2015

Published on October 15th 2015 - Listed in Windows Personal - 1 comments

Do not try to auto-mount containers logical volume during lxc-create

Published on October 13th 2015 - Listed in Linux LXC - 0 comments

Wordpress web abused using fx() web shell and Priv8 mailer to send spams

Published on October 9th 2015 - Listed in Hacks Internet Linux - 0 comments

Cannot update bind9 in Debian? Check for errors in zone config!

Published on October 8th 2015 - Listed in Linux DNS - 0 comments

Bugfix in check_equallogic when volume does not exist

Published on October 6th 2015 - Listed in Nagios Icinga Monitoring Hardware - 0 comments

Nginx: Configure bypassing and or purging the cache

Published on September 30th 2015 - Listed in Linux Nginx - 1 comments

lxc-destroy command not working when run as cron job

Published on September 25th 2015 - Listed in Linux LXC - 0 comments

Enable caching in Nginx Reverse Proxy (and solve cache MISS only)

Published on September 17th 2015 - Listed in Linux Nginx - 10 comments

It is 2015 and we still should not use MongoDB (POV of a Systems Engineer)

Published on September 15th 2015 - last updated on February 11th 2023 - Listed in Database MongoDB - 0 comments

HAProxy 1.5 init script broken in Ubuntu 14.04.3 LTS

Published on September 10th 2015 - Listed in Linux - 0 comments

Troubleshooting Wondershare Filmora Video Editor Crash

Published on August 28th 2015 - Listed in Multimedia - 4 comments

Icinga 2: Advanced usage of arrays/dictionaries for monitoring of partitions

Published on August 21st 2015 - last updated on November 22nd 2021 - Listed in Nagios Icinga Monitoring - 2 comments

Using arrays in Icinga 2 custom attributes to monitor partitions

Published on August 20th 2015 - Listed in Nagios Icinga Monitoring - 0 comments

SLES 11: Where is my beloved htop?

Published on August 6th 2015 - Listed in Linux - 2 comments

Read or count number of lines of an Excel xlsx file in Linux on the cli

Published on July 29th 2015 - Listed in Linux Perl Shell Windows Coding Office - 2 comments

fatal: Access denied for user by PAM account configuration

Published on July 29th 2015 - Listed in Linux Security - 3 comments

Improving Gmail spam filter: All it needs is a barking Linus Torvalds.

Published on July 22nd 2015 - Listed in Internet Personal - 0 comments

pptp client on Linux: Disable crazy anon logging (callmgr)

Published on July 21st 2015 - Listed in Linux Network Internet - 0 comments

Mount a volume with different ownership permissions with bindfs

Published on July 16th 2015 - Listed in Linux - 0 comments

Samsung Galaxy S5 (G901F): Hello CM 12.1, bye bye Touchwiz! Install guide.

Published on July 15th 2015 - Listed in Android - 11 comments

Could not install new software version on Sony Xperia Tablet Z (OTA)

Published on July 14th 2015 - Listed in Android - 0 comments

check_esxi_hardware now exits with Unknown status for timeouts

Published on July 10th 2015 - Listed in Nagios Monitoring VMware - 2 comments

Winbind unable to retrieve user list from Windows Active Directory

Published on July 9th 2015 - last updated on April 8th 2021 - Listed in Linux Windows Samba - 2 comments

MongoDB 3.x: Create log rotation script

Published on July 6th 2015 - Listed in MongoDB Database - 4 comments

Samsung Galaxy S5 (G901F): Pain to install custom recovery or Cyanogenmod

Published on July 2nd 2015 - Listed in Android - 3 comments

New version of check_esxi_hardware fixes issue with patched pywbem

Published on June 26th 2015 - Listed in Nagios Monitoring Linux VMware - 8 comments

How to analyze HTTP sessions from tcpdump pcap file using Wireshark filters

Published on June 26th 2015 - last updated on March 28th 2024 - Listed in Linux Network - 0 comments

Change sort order in Icinga Classic UI with Icinga 2 Core

Published on June 18th 2015 - Listed in Monitoring Nagios Icinga - 0 comments

Use FTPES with pure-ftpd and solve connection timeout issues

Published on June 12th 2015 - Listed in Linux Internet - 0 comments

HAProxy: Make httpchk on different port than application

Published on June 11th 2015 - Listed in PHP Linux HAProxy MySQL - 1 comments

Nginx talking to remote php-fpm backend server: No input file specified.

Published on June 10th 2015 - Listed in PHP Linux Nginx - 2 comments

Ubuntu 14.04: mailq command not working in container (Permission denied)

Published on June 8th 2015 - Listed in Linux - 4 comments

What are the tasks of a DevOps engineer?

Published on May 27th 2015 - last updated on August 27th 2019 - Listed in Personal - 0 comments

Network connectivity problems when running LXC (with veth) in VMware VM

Published on May 26th 2015 - last updated on January 17th 2025 - Listed in VMware Linux Virtualization Network LXC - 6 comments

Allow user to execute eval() command on MongoDB 3.x

Published on May 26th 2015 - Listed in MongoDB Database - 1 comments

HAProxy: Forward based on string in url combined with existing acl

Published on May 22nd 2015 - Listed in Linux HAProxy - 3 comments

Authentication on MongoDB 3.x fails with mechanism MONGODB-CR

Published on May 20th 2015 - Listed in MongoDB Database - 6 comments

Finally a good example of a long lasting SATA drive

Published on May 20th 2015 - Listed in Hardware Linux - 0 comments

Problems on LXC in same network as its host which is a VMware VM

Published on May 11th 2015 - Listed in Linux Network VMware Virtualization - 1 comments

Firefox cannot save passwords, store ssl certificate exceptions anymore

Published on May 7th 2015 - Listed in Internet Windows - 0 comments

xfs anger: repair not working (inodes not freed) and slow ls

Published on May 6th 2015 - Listed in Linux - 2 comments

Changed internet access from DSL to Cable - gained a bit of speed

Published on May 2nd 2015 - Listed in Internet Personal Network - 0 comments

Get rid of Ksshaskpass window popping up in openSUSE

Published on April 30th 2015 - Listed in Linux - 2 comments

Upgrade a HDD running Windows 7, fix boot issues and resize NTFS

Published on April 29th 2015 - Listed in Hardware Windows Linux - 0 comments

Pure-FTPd: Add full name (syntax) when creating a new virtual user

Published on April 16th 2015 - Listed in Linux - 0 comments

Remove update uninstall folders in Windows 7 and free disk space

Published on April 11th 2015 - Listed in Windows - 0 comments

Ubuntu boot bug (error: diskfilter writes are not supported)

Published on April 10th 2015 - Listed in Linux - 0 comments

Installing and testing the new pywbem 0.8 (development version)

Published on April 8th 2015 - Listed in Linux Nagios Monitoring VMware - 2 comments

7 year old bug in rsnapshot fixed (LVM snapshot missing mount point)

Published on April 7th 2015 - Listed in Linux Unix Backup LVM - 0 comments

VMware: Consolidate snapshots not working (file locked error)

Published on April 2nd 2015 - Listed in VMware - 0 comments

check_smart: Change of syntax when -g (global) parameter is used

Published on March 12th 2015 - Listed in Nagios Monitoring Hardware - 0 comments

Strange hex characters appear in html source code (check_http and chunks)

Published on March 10th 2015 - Listed in Linux Monitoring Nagios - 1 comments

Cannot read Audio CD in Hifi/Audio CD player but works on computer

Published on March 9th 2015 - Listed in Multimedia Personal - 0 comments

When a Windows support phone scammer reaches a Linux Systems Engineer...

Published on March 3rd 2015 - Listed in Windows Linux Internet Hacks - 0 comments

Solaris: Cannot copy partition table (not aligned on cylinder boundary)

Published on March 3rd 2015 - Listed in Solaris Hardware - 0 comments

Joomla website hacked through Akeeba component (com_joomlaupdate)

Published on February 25th 2015 - Listed in Hacks Internet PHP - 0 comments

No space left on device but df still shows available space

Published on February 24th 2015 - Listed in Linux - 1 comments

check_smart: Your opinion is needed for a bugfix

Published on February 16th 2015 - Listed in Nagios Monitoring Hardware - 0 comments

check_smart: Version 5.5 released (run plugin outside of nagios plugin dir)

Published on February 12th 2015 - Listed in Nagios Monitoring Hardware - 0 comments

check_smart: Version 5.4 released (allow SAS drives behind MegaRaid)

Published on February 5th 2015 - Listed in Nagios Monitoring Hardware - 0 comments

check_smart version 5.3 released (support for more than 26 devices)

Published on February 4th 2015 - Listed in Nagios Monitoring Hardware - 0 comments

check_equallogic: Bugfix in percentage calculation in volume check

Published on February 3rd 2015 - Listed in Nagios Monitoring Hardware - 0 comments

Public and Private keys incorrect error in Wordpress with SSH auth

Published on February 2nd 2015 - Listed in Internet PHP CMS Wordpress - 0 comments

How to force a hard reboot your Sony Xperia tablet or phone

Published on January 24th 2015 - Listed in Android - 0 comments

Will I still be root if I install an update on Sony Xperia Android?

Published on January 23rd 2015 - Listed in Android Hardware - 0 comments

Overwrite variables in template file with chef template command

Published on January 21st 2015 - Listed in Linux Chef Unix - 0 comments

Disable AHBL (Abuse Hosts) DNS blocklist in Spamassassin

Published on January 20th 2015 - Listed in Internet Mail Linux - 3 comments

Bug (cannot concatenate) fixed in new version of check_esxi_hardware plugin

Published on January 19th 2015 - Listed in Nagios Monitoring Hardware VMware - 0 comments

MySQL replication not working - but in SHOW SLAVE STATUS everything is OK

Published on January 16th 2015 - Listed in MySQL Database Solaris Nagios Monitoring - 0 comments

Server does not detect network card anymore (as if the card was gone)

Published on January 14th 2015 - Listed in Network Hardware Rant - 0 comments

Cannot register RHEL 7 server (certificate verify failed) due to wrong time

Published on January 13th 2015 - Listed in Linux - 9 comments

check_esxi_hardware: Support for multiple serial numbers for blade servers

Published on January 9th 2015 - Listed in Monitoring Nagios Hardware VMware - 0 comments

Install LXC from source on Ubuntu 14.04 Trusty

Published on November 26th 2014 - last updated on August 23rd 2019 - Listed in Linux LXC - 2 comments

Permission denied error on /root/.bash_profile when running su command

Published on November 25th 2014 - Listed in Linux Shell - 1 comments

How to use openSUSE zypper behind a HTTP proxy (with authentication)

Published on November 10th 2014 - last updated on April 11th 2024 - Listed in Linux Network Internet - 5 comments

Wordpress hacked through vulnerability in Wysija (Mail Poet)

Published on November 9th 2014 - Listed in Internet Hacks PHP - 0 comments

Using preseed to create two volume groups on same disk

Published on October 22nd 2014 - Listed in Linux - 2 comments

Using Nagios check_smtp -S without SSLv3 (sslv3 alert handshake failure)

Published on October 21st 2014 - Listed in Nagios Monitoring Security Internet Mail - 0 comments

Network Intrusion Detection System with Suricata on Debian Wheezy

Published on October 8th 2014 - Listed in Security Linux Network - 2 comments

ZFS is still resilvering when 100% done

Published on October 7th 2014 - Listed in Solaris Unix ZFS - 1 comments

awk issue when trying to sort variables with same values

Published on September 29th 2014 - Listed in Linux Shell Coding - 0 comments

Are there any shellshock attacks (in Apache access logs)?

Published on September 26th 2014 - Listed in Hacks Linux Shell Apache - 1 comments

node js: Fix bodyParser error (is no longer bundled with Express)

Published on September 16th 2014 - last updated on April 29th 2022 - Listed in Linux Unix Rant - 1 comments

Sony Xperia Tablet Z with Kitkat: Fix for permission denied on sd card

Published on September 11th 2014 - Listed in Android Internet - 0 comments

Rsnapshot does not remove LV snapshot when mount failed

Published on September 11th 2014 - Listed in Linux Backup - 0 comments

Firefox shows error: The image cannot be displayed because it contains errors

Published on September 8th 2014 - last updated on May 14th 2025 - Listed in Internet Multimedia Graphics - 3 comments

Bind9 Master Slave replication: Zone transfer not working in Ubuntu 14.04

Published on September 8th 2014 - Listed in Linux - 1 comments

Ubuntu 14.04: Slow network boot prevents glusterfs volumes to mount

Published on September 3rd 2014 - Listed in Linux - 1 comments

Mount a GlusterFS volume in a LXC container

Published on September 1st 2014 - last updated on June 12th 2023 - Listed in Linux LXC GlusterFS - 6 comments

Use bash to compare remote cpu load and print lowest value of array

Published on August 14th 2014 - Listed in Linux Shell Coding - 0 comments

GlusterFS bricks should be in a subfolder of a mountpoint

Published on August 5th 2014 - Listed in Linux - 1 comments

New version of check_equallogic features snmp connection check

Published on July 25th 2014 - Listed in Nagios Monitoring Hardware - 0 comments

One year of collected data - a review of temperatures in Zurich

Published on July 25th 2014 - Listed in Personal Internet - 0 comments

Cannot connect to SSH: Read from socket failed: Connection reset by peer

Published on July 23rd 2014 - Listed in Linux - 0 comments

Automate Postfix installation in Debian and Ubuntu with debconf

Published on July 21st 2014 - Listed in Mail Linux LXC - 0 comments

MySQL Galera cluster not starting (failed to open channel)

Published on July 14th 2014 - last updated on March 17th 2025 - Listed in MySQL Database Galera - 3 comments

LXC start fails with get_cgroup failed to receive response error

Published on July 14th 2014 - Listed in Linux - 0 comments

Bye Bye Windows XP

Published on July 7th 2014 - Listed in Windows - 0 comments

Presenting new Nagios plugin: check_promise_vtrak

Published on July 4th 2014 - Listed in Nagios Monitoring Hardware - 0 comments

Bugfix in etherror check type in check_equallogic

Published on June 27th 2014 - Listed in Nagios Hardware Monitoring - 0 comments

Use of uninitialized value XXX in concatenation (.) or string (perl snmp)

Published on June 26th 2014 - Listed in Perl Linux - 0 comments

Online resizing of an LXC container on LVM volume

Published on June 24th 2014 - Listed in Linux LVM - 0 comments

Using awstats in combination with logrotate

Published on June 23rd 2014 - Listed in Linux Internet - 0 comments

Nginx in front of Apache: Only default server website is shown

Published on June 18th 2014 - Listed in Linux Internet Nginx Apache - 0 comments

Cannot uninstall Cisco VPN Client 5.0 on Windows 7

Published on June 16th 2014 - Listed in Windows Network Rant - 1 comments

Nginx emerg error: could not build the server_names_hash

Published on June 5th 2014 - Listed in Linux Internet Unix Nginx - 0 comments

Prevent nginx from serving content to external domains (hotlinking)

Published on June 4th 2014 - Listed in Linux Unix Internet Nginx - 0 comments

Reverting / Restoring to a LVM snapshot as a rollback scenario

Published on June 3rd 2014 - last updated on November 15th 2023 - Listed in Linux LVM - 0 comments

X11 Forwarding through SSH not working (missing xauth)

Published on May 28th 2014 - Listed in Linux Java - 0 comments

CPU upgrade on a Toshiba Satellite C660D notebook (AMD V140 to Turion II)

Published on May 28th 2014 - Listed in Hardware - 9 comments

Some disk write performance statistics on a Raid-50

Published on May 26th 2014 - Listed in Linux Hardware - 0 comments

Linux network interfaces are named emX and enX instead of ethX

Published on May 23rd 2014 - last updated on April 17th 2024 - Listed in Linux Network Systemd - 0 comments

Finding a spammer (or spam script) sometimes takes time and patience

Published on May 13th 2014 - Listed in Linux Hacks Internet Mail - 0 comments

Ubuntu freeze due to bug in tg3 driver for Broadcom NIC (?)

Published on May 12th 2014 - Listed in Linux Hardware Rant - 0 comments

A real step by step guide how to install JBoss Fuse

Published on May 11th 2014 - Listed in Linux Rant - 5 comments

Looking for logrotate in FreeBSD? Use newsyslog.conf!

Published on May 7th 2014 - Listed in BSD Unix - 0 comments

Bug fixes in check_smart plugin (version 5.2)

Published on May 5th 2014 - Listed in Nagios Monitoring Hardware - 0 comments

High I/O on zpool-zones process - troubleshooting the cause

Published on April 30th 2014 - Listed in SmartOS Solaris Linux ZFS - 0 comments

New version of check_smart supports multiple disk check (-g, --global)

Published on April 25th 2014 - Listed in Hardware Linux Nagios Monitoring - 0 comments

How to do a Redis Master Slave switch/failover

Published on April 24th 2014 - last updated on May 26th 2021 - Listed in Database Linux Redis - 0 comments

Multiple ways to monitor physical hard drives, very different results

Published on April 23rd 2014 - last updated on April 22nd 2021 - Listed in Hardware Linux Nagios Monitoring - 1 comments

Debian Wheezy 7.5 is out - too soon?

Published on April 22nd 2014 - last updated on April 29th 2022 - Listed in Linux Rant - 0 comments

Cannot connect to SSH: Connection closed by remote host

Published on April 14th 2014 - Listed in Linux Network - 0 comments

Tracing a Joomla website hack back to com_extplorer module

Published on April 11th 2014 - Listed in Linux Internet Unix Hacks CMS - 1 comments

Debians patching solution for the openssl heartbleed bug

Published on April 10th 2014 - Listed in Linux Internet Unix Hacks - 0 comments

Restore a single file from ufs dump on FreeBSD

Published on April 7th 2014 - Listed in BSD Unix - 0 comments

How to remove a newline character of every second line in bash

Published on April 1st 2014 - Listed in Linux Shell Unix Coding - 0 comments

Reminder: Do not start with an integer for a variable name in Bash

Published on March 31st 2014 - Listed in Shell Linux Unix Coding Bash - 0 comments

When GitHub and wget on Debian Wheezy bite each other (TLS warning alert)

Published on March 25th 2014 - Listed in Linux Internet Git - 2 comments

SmartOS: Modify network/nic settings of a smartmachine with vmadm

Published on March 23rd 2014 - Listed in Unix Solaris SmartOS - 0 comments

check_smart Nagios plugin version 4.2 released

Published on March 20th 2014 - Listed in Nagios Monitoring Hardware - 0 comments

Another two Dell elements ignored in check_esxi_hardware

Published on March 19th 2014 - Listed in Monitoring Nagios Hardware VMware - 0 comments

Some servers not logging on remote syslog server (rejecting connection)

Published on March 11th 2014 - Listed in Linux - 0 comments

check_zpools now works without usage thresholds, too

Published on March 11th 2014 - Listed in Nagios Monitoring Unix Solaris SmartOS BSD ZFS - 0 comments

Nagios monitoring plugin check_zpools now has its own documentation

Published on March 9th 2014 - Listed in Nagios Monitoring Unix Solaris SmartOS BSD ZFS - 0 comments

Atmail mail server with orphaned exim processes

Published on March 5th 2014 - Listed in Mail Linux - 0 comments

ZFS: Cannot delete snapshot (snapshot is cloned)? Destroy clone first!

Published on March 4th 2014 - Listed in Unix Solaris ZFS - 0 comments

System freeze because of defect Storage Controller ECC Memory

Published on March 3rd 2014 - Listed in Hardware Solaris Unix - 0 comments

Solaris: How to limit ZFS ARC cache maximum size

Published on February 28th 2014 - Listed in Solaris Unix ZFS - 2 comments

Old Wordpress (3.4.2) hacked and used to create and execute binary

Published on February 26th 2014 - Listed in Hacks PHP - 3 comments

CentOS 6 installer shows partitioning error for root partition

Published on February 19th 2014 - Listed in Linux - 0 comments

Photoshop fi written together as one character - how to disable ligatures

Published on February 13th 2014 - Listed in Graphics Multimedia Personal Internet - 0 comments

djbdns dnsache loop caching issue when using itself as resolver

Published on February 13th 2014 - Listed in DNS Internet Unix BSD - 0 comments

Comparing new Roundcube 1.0 config file and its options to older 0.8.x

Published on February 11th 2014 - Listed in Mail PHP Linux Roundcube - 0 comments

Nofawkx hack: WSO PHP shell uploaded through (very) old tiny_mce

Published on February 10th 2014 - Listed in Hacks Internet BSD - 0 comments

Uploaded and executed perl script through old Joomla vulnerability

Published on February 10th 2014 - Listed in Hacks Linux Internet CMS - 0 comments

Mass convert and migrate mails from mbox to maildir destination

Published on February 4th 2014 - Listed in Mail Linux - 0 comments

Debian not booting: ALERT /dev/disk/by-uuid does not exist

Published on February 2nd 2014 - Listed in Linux Proxmox Virtualization - 0 comments

Cannot ssh login to Joyent SDC Smartmachine: restart smartlogin

Published on January 31st 2014 - Listed in SmartOS Unix Solaris - 0 comments

Set higher preference/priority to an APT repository over another or completely ignore certain repos

Published on January 28th 2014 - last updated on September 24th 2020 - Listed in Linux - 0 comments

Added snmp authentication support to check_storcenter

Published on January 20th 2014 - Listed in Nagios Monitoring Hardware - 0 comments

Transfer contacts, media and messages from iPhone to Android on Samsung

Published on January 20th 2014 - Listed in Android Personal - 0 comments

Increase memory (capped-memory) on a Solaris zone or SmartOS smartmachine

Published on January 14th 2014 - Listed in Unix Solaris SmartOS - 0 comments

Nginx rewrite URL examples with and without redirect address

Published on January 13th 2014 - last updated on February 21st 2022 - Listed in Nginx Internet Linux Unix - 6 comments

Federal statistics: A must for Swiss citizens

Published on January 11th 2014 - Listed in Personal Rant - 0 comments

The pain to get real memory usage stats on physical SmartOS

Published on January 10th 2014 - Listed in SmartOS Unix Solaris Nagios Monitoring - 2 comments

check_mysql_slavestatus now works with MySQL 5.6

Published on January 6th 2014 - Listed in MySQL Database - 0 comments

A different kind of hack: IKEA BESTÅ cat litter furniture

Published on January 5th 2014 - Listed in Personal - 0 comments

check_http and SNI SSL certificates

Published on December 23rd 2013 - last updated on July 13th 2020 - Listed in Nagios Linux Monitoring - 4 comments

Remote SSH work on Android tablet with ConnectBot and physical keyboard

Published on December 23rd 2013 - Listed in Android Linux Hardware - 1 comments

Atmail license key exceeded error - a global issue

Published on December 20th 2013 - Listed in Mail Internet Rant - 0 comments

Dear Gmail: What is going on with your spam filter?!

Published on December 19th 2013 - Listed in Mail Internet Personal Rant - 0 comments

check_equallogic: Bugfix in poolusage check

Published on December 19th 2013 - Listed in Nagios Monitoring Hardware - 0 comments

Installed CM 10.2 on GT-i9100 (Galaxy S2): Stuck on boot screen

Published on December 16th 2013 - Listed in Android - 0 comments

Car Bluetooth issue on Galaxy S2 with CM 10.1.3 (upgraded to 10.2)

Published on December 16th 2013 - Listed in Android Personal Rant - 0 comments

Using date in a cronjob (and solve error grandchild failed error)

Published on December 13th 2013 - last updated on April 29th 2022 - Listed in Linux Shell - 0 comments

Google Analytics vs. AWstats: Thats a big difference

Published on December 12th 2013 - Listed in Internet Personal Rant - 0 comments

How to change the collation of a MySQL database

Published on December 11th 2013 - Listed in MySQL Database - 1 comments

PHP application stopped working after PHP upgrade to 5.3 (T_GOTO)

Published on December 9th 2013 - Listed in PHP Linux - 0 comments

Unidentifiable load increase after upgrade to PHP 5.3

Published on December 9th 2013 - Listed in PHP Linux - 0 comments

Fix negative temperature value alert in check_pcmeasure2 plugin

Published on December 3rd 2013 - Listed in Nagios Monitoring - 0 comments

Cannout mount in LXC container: mount error(13): Permission denied

Published on November 28th 2013 - last updated on December 9th 2021 - Listed in Linux LXC Samba - 0 comments

Updating Wordpress: Got a PCLZIP_ERR_BAD_FORMAT error? The solution.

Published on November 26th 2013 - Listed in Internet Wordpress Linux - 0 comments

check_equallogic: Bugfix in vol check and issue with firmware 7.0 (?)

Published on November 22nd 2013 - Listed in Hardware Nagios Monitoring - 0 comments

check_smart plugin now has its own (documentation-) page

Published on November 15th 2013 - Listed in Nagios Hardware Monitoring - 0 comments

Joy without technology: I am a father

Published on November 15th 2013 - Listed in Personal - 1 comments

smartctl on FreeBSD with CCISS (HP SmartArray) raid: Watch out!

Published on November 11th 2013 - Listed in Hardware FreeBSD - 1 comments

Install and use smartctl (smartmontools) on Solaris (opencsw package)

Published on November 7th 2013 - Listed in Solaris Unix Hardware - 4 comments

check_smart monitoring plugin saves server lifes (defect hard drive detected)

Published on November 5th 2013 - Listed in Hardware Nagios BSD Monitoring - 0 comments

check_smart.pl adapted to support cciss and handle grown defect list

Published on November 4th 2013 - last updated on April 22nd 2021 - Listed in Monitoring Hardware Nagios BSD Linux - 4 comments

Read Disk SMART values on FreeBSD (6.0) behind a HP Raid (cciss)

Published on November 3rd 2013 - Listed in Hardware BSD Monitoring - 0 comments

Monitoring nginx web server with check_nginx_status.pl

Published on November 1st 2013 - Listed in Internet Monitoring Nagios Linux Nginx - 3 comments

OTRS migration to another server; what to look out for

Published on October 29th 2013 - Listed in OTRS Linux Unix Shell - 5 comments

PHP 5.2.17 on Debian Wheezy 7: Solve make error in xp_ssl.c

Published on October 26th 2013 - Listed in PHP Linux - 0 comments

check_equallogic: Bugfix in temp check and optical cleanup

Published on October 25th 2013 - Listed in Hardware Nagios Monitoring - 0 comments

Continuous reboot loop after RAM upgrade in Toshiba Notebook (solved)

Published on October 21st 2013 - last updated on March 27th 2020 - Listed in Hardware - 2 comments

Show and list disk information on SmartOS

Published on October 17th 2013 - Listed in SmartOS Unix - 0 comments

check_mysql_slavestatus plugin now handles IO Running in Connecting state

Published on October 17th 2013 - Listed in Nagios MySQL Database Monitoring - 0 comments

check_smart plugin now supports FreeBSD

Published on October 14th 2013 - Listed in Nagios Monitoring BSD Hardware - 0 comments

Check SMART values of disks behind an Intel Raid on FreeBSD

Published on October 11th 2013 - Listed in BSD Hardware - 0 comments

Use Top-Level-Domain (TLD) Wildcard in Apache Virtual Host

Published on October 10th 2013 - Listed in Internet Linux Unix Apache - 0 comments

Linux/Unix seq: Add a zero digit in front of 1-9

Published on October 7th 2013 - Listed in Linux Shell Unix Coding - 2 comments

How to test if a SDHC card is defect or is dying

Published on October 5th 2013 - Listed in Personal Linux Hardware - 0 comments

Nagios-Plugins 1.5 out, check_procs finally with performance data

Published on October 3rd 2013 - Listed in Nagios Linux Monitoring - 0 comments

phpmailer with mini_sendmail issue also affects modified shop cms

Published on October 2nd 2013 - Listed in Internet PHP Mail CMS Rant - 0 comments

Steps how to do a clean shutdown of a Solaris zone

Published on October 1st 2013 - Listed in Unix Solaris - 0 comments

New version of check_mysql_slave released (minor bugfixes)

Published on September 27th 2013 - Listed in Nagios MySQL Database Monitoring - 0 comments

netio - a tool to measure network speed across operating systems

Published on September 26th 2013 - Listed in Windows Linux BSD Backup Network - 0 comments

Virtuemart shop does not like APC: Internal Zend error - Missing class info

Published on September 26th 2013 - Listed in PHP - 0 comments

FreeBSD 9.2 update from RC3 to RC4

Published on September 23rd 2013 - Listed in BSD Unix - 0 comments

You have an error in your SQL syntax - single quote in text issue

Published on September 19th 2013 - Listed in PHP MySQL Database - 2 comments

Changing from PHP mysql to mysqli - what to look out for

Published on September 14th 2013 - last updated on April 28th 2021 - Listed in Internet PHP MySQL - 0 comments

HP Gen8 Servers: Intelligent Provisioning is stupid

Published on September 12th 2013 - Listed in Hardware Rant - 0 comments

Solving OpenCms startup error: Critical error while loading driver manager

Published on September 11th 2013 - Listed in Solaris Unix Internet Tomcat CMS - 0 comments

Replace hard drive in Solaris 10 on IBM x3650 with arcconf and zpool

Published on September 5th 2013 - Listed in Solaris Hardware Unix ZFS - 0 comments

Now that's what I call a web hack! (wonder.php, rusztiko.com)

Published on September 5th 2013 - last updated on May 11th 2023 - Listed in Internet PHP Linux BSD Hacks - 1 comments

Bad admins: When the abuse mail address does not work (MTNL Delhi)

Published on September 4th 2013 - Listed in Internet Personal Mail Rant - 0 comments

LXC 1.0 stable is coming - the LXC roadmap

Published on September 4th 2013 - Listed in Linux - 0 comments

MySQL: Created table did not inherit default collation of database

Published on August 29th 2013 - Listed in Database MySQL - 0 comments

In memoriam: Legalsounds.com

Published on August 22nd 2013 - Listed in Internet Rant - 0 comments

Portuguese spam tool uploaded through old Joomla

Published on August 19th 2013 - Listed in Internet Linux Hacks - 0 comments

Wordpress: Blog comments disabled but comment spams still happen

Published on August 12th 2013 - Listed in Internet CMS Wordpress Rant - 0 comments

check_ilo2_health 1.58 fixes drive check for multiple backplanes

Published on August 9th 2013 - Listed in Hardware Nagios Monitoring - 1 comments

Query disk information from HP Proliant Servers through SNMP

Published on August 8th 2013 - Listed in Hardware Unix Linux - 1 comments

Changed UID of postfix - clean-up steps to do afterwards

Published on August 7th 2013 - Listed in Linux Mail - 0 comments

July 2013 in Switzerland - a hot month (graph)

Published on August 6th 2013 - Listed in Personal Nagios Monitoring - 0 comments

check_equallogic and copying to spare raid status

Published on August 6th 2013 - Listed in Hardware Nagios Monitoring - 0 comments

Updated Dell warranty information check in check_esxi_hardware

Published on July 25th 2013 - Listed in Nagios VMware Hardware Virtualization Monitoring - 0 comments

First steps with MongoDB: Create a real admin user (DBA)

Published on July 24th 2013 - last updated on February 1st 2022 - Listed in MongoDB Database - 0 comments

Solaris: (Hot-)Add a new ip address to a zone without reboot

Published on July 22nd 2013 - Listed in Solaris Unix Network - 2 comments

MySQL replication stopped due to crashed table (Error no 144)

Published on July 18th 2013 - Listed in MySQL Database Unix - 0 comments

Looking for tcpdump on Solaris? Use snoop!

Published on July 12th 2013 - Listed in Linux Solaris Shell Network Unix - 1 comments

Improved authentication error timeout in check_esxi_hardware

Published on July 11th 2013 - Listed in Nagios VMware Hardware Virtualization Monitoring - 0 comments

check_smart with support for hardware raid controllers

Published on July 8th 2013 - Listed in Nagios Hardware Linux Perl Monitoring - 0 comments

HP ILO Download Mirror

Published on July 2nd 2013 - Listed in Hardware Internet - 1 comments

Kolab Groupware - Potential but not yet production ready

Published on July 1st 2013 - Listed in Linux Internet Mail Rant - 0 comments

Backing up locally with rsnapshot? Use ionice to reduce load.

Published on June 27th 2013 - Listed in Linux Network - 0 comments

Upgrade Samsung Galaxy S2 (i9100) to Cyanogenmod 10.1 (Jelly Bean)

Published on June 24th 2013 - Listed in Android - 0 comments

Facebook did it again - just a bunch of bad programmers?

Published on June 24th 2013 - Listed in Internet Personal Rant - 0 comments

SmartOS: Why PHP-FPM writes tons of /dev/poll warnings into log

Published on June 19th 2013 - Listed in SmartOS Unix Solaris PHP - 0 comments

A dying SDCard (EMMC) causes strange effects on Android

Published on June 19th 2013 - Listed in Android Hardware Personal Rant - 2 comments

MySQL (Percona) replication stopped due to corrupt innodb ibd file

Published on June 18th 2013 - Listed in MySQL Solaris SmartOS Unix Database - 0 comments

Solaris: Add a new hard drive to existing zfs pool (with hpacucli)

Published on June 17th 2013 - Listed in Solaris Hardware Unix ZFS - 0 comments

YUM and DNF vs. Zypper vs. APT, RPM vs. dpkg command comparison and cheat sheet

Published on June 12th 2013 - last updated on May 21st 2024 - Listed in Linux Shell - 2 comments

Seagate ST3000DM001-9YN166: A catastrophic disk

Published on June 11th 2013 - Listed in Hardware Linux Rant - 4 comments

Treasure hunt (found old SUSE and Microsoft software boxes)

Published on June 3rd 2013 - last updated on December 20th 2023 - Listed in Linux Windows Personal - 0 comments

How to re-format a USB drive to FAT32 in Linux

Published on June 1st 2013 - last updated on November 20th 2020 - Listed in Linux Windows - 0 comments

dd copy: How long does it take for a 3TB SATA Disk?

Published on June 1st 2013 - Listed in Linux Hardware - 1 comments

ILO update 1.16 to 1.55 fails - use 1.28 as intermediate version

Published on May 22nd 2013 - Listed in Hardware - 0 comments

check_zpools with performance data

Published on May 21st 2013 - Listed in Nagios Solaris BSD Unix Monitoring ZFS - 0 comments

Newest Facebook app update (3.2) on Android crashes system

Published on May 11th 2013 - Listed in Android Internet - 0 comments

Presenting check_zpools - a Nagios plugin to monitor zfs pools

Published on May 9th 2013 - Listed in Nagios Solaris BSD Unix Monitoring ZFS - 2 comments

Monitor zfs pools - which Nagios plugin should be used?

Published on May 7th 2013 - Listed in Nagios BSD Hardware Unix Monitoring ZFS - 4 comments

PHP 5.4 fails to compile with g++ (use gcc instead)

Published on May 4th 2013 - Listed in Linux PHP - 2 comments

Another confusing PHP 5.4 compilation error: This time mcrypt_module_open

Published on May 4th 2013 - Listed in PHP Linux - 0 comments

PHP 5.4 compilation error: build with IMAP works... no

Published on May 4th 2013 - Listed in Linux PHP - 0 comments

How to solve knife (chef) error Exception: NoMethodError

Published on May 3rd 2013 - Listed in Linux - 0 comments

Another cgi web shell found (webr00t), uploaded through old Joomla

Published on May 2nd 2013 - Listed in Internet PHP Hacks - 0 comments

How to monitor qmail mail queue (check_mailq alternative)

Published on April 29th 2013 - Listed in Nagios Linux Shell Mail Monitoring - 2 comments

Updated check_mysql_slavestatus plugin and documentation

Published on April 28th 2013 - Listed in Nagios MySQL Database Monitoring - 0 comments

Another Dell workaround in check_esxi_hardware

Published on April 24th 2013 - Listed in Nagios VMware Virtualization Monitoring - 3 comments

Contao CMS Updates not working (suhosin patch active)

Published on April 22nd 2013 - Listed in PHP Internet - 0 comments

Handling qmail queue

Published on April 19th 2013 - Listed in Linux Shell Mail - 1 comments

Follow-up on the Joomla mailing issue with mini_sendmail

Published on April 16th 2013 - Listed in Internet PHP Mail - 0 comments

Set up OTRS so other agents can respond to tickets with different owner

Published on April 4th 2013 - Listed in Internet Linux - 1 comments

Deprecated old style usage on check_esxi_hardware plugin

Published on March 23rd 2013 - Listed in Nagios VMware Virtualization Monitoring - 0 comments

Adapting check_mem.pl to measure memory usage on FreeBSD

Published on March 19th 2013 - Listed in Nagios BSD Perl Monitoring - 0 comments

User quota disk space monitoring with check_disk

Published on March 18th 2013 - Listed in BSD Linux Shell Nagios Monitoring - 0 comments

High CPU load due to mass imap-logins on dovecot

Published on March 15th 2013 - Listed in Linux Internet Mail - 0 comments

ILO4 Firmware 1.20 changed the XML output

Published on March 13th 2013 - Listed in Nagios Hardware Monitoring - 3 comments

The search for the perfect Audio Player on Linux

Published on March 12th 2013 - Listed in Linux Multimedia - 0 comments

Tons of old Joomla CMS still running on the web

Published on March 7th 2013 - Listed in Internet Linux Rant - 0 comments

rm: cannot remove due to Input/output error (EXT4-fs error)

Published on March 2nd 2013 - Listed in Linux Hardware - 1 comments

SmartOS: Measure how long it takes to open a file

Published on February 21st 2013 - Listed in Unix Solaris SmartOS - 0 comments

ILO2 Firmware Upgrade fails with Internet Explorer 9

Published on February 18th 2013 - Listed in Windows Hardware - 0 comments

A practical example for a logical volume reduce with ext file system

Published on January 31st 2013 - Listed in Linux Unix - 0 comments

grub2 boot issues after hdd replacement

Published on January 26th 2013 - Listed in Linux Shell Hardware Rant - 0 comments

FreeBSD Disaster Recovery with mfsBSD and ufs dumps

Published on January 24th 2013 - Listed in BSD Unix Backup - 0 comments

Dovecot suicide after ntp activation

Published on January 21st 2013 - Listed in Linux Unix Mail Rant - 0 comments

Follow up on the modified shop installation error

Published on January 19th 2013 - Listed in PHP Internet Linux - 0 comments

modified eCommerce shop 1.06 installer is broken - how to fix it

Published on January 18th 2013 - Listed in PHP Internet Rant - 0 comments

Solaris: Replace defect HDD with hpacucli and zpool

Published on January 17th 2013 - Listed in Unix Solaris Hardware ZFS - 1 comments

SmartOS: svcs: Could not bind to repository server. Finding the cause.

Published on January 9th 2013 - Listed in Solaris Shell Database SmartOS Unix - 8 comments

MySQL: Cannot create or drop Stored Procedures when binary logs active

Published on January 7th 2013 - Listed in Database Linux MySQL - 0 comments

check_equallogic now also checks power supply fans

Published on December 31st 2012 - Listed in Nagios Hardware Monitoring - 0 comments

Building a home file server with HP Proliant N40L

Published on December 28th 2012 - Listed in Hardware Linux Samba - 4 comments

Nagiosgraph not showing correct values for disk space

Published on December 19th 2012 - Listed in Nagios Linux Internet Shell Monitoring - 0 comments

Weird case: MySQL causing high disk IO when ZFS filesystem shrinks

Published on December 18th 2012 - Listed in BSD Database Shell MySQL ZFS Rant - 1 comments

Joomla aklazy plugin sets weird meta refreshes, causing high load

Published on December 14th 2012 - Listed in PHP Internet - 0 comments

Nagios/Monitoring Plugin check_esxi_hardware FAQ

Published on December 5th 2012 - last updated on November 18th 2024 - Listed in VMware Nagios Icinga Virtualization Monitoring Hardware - 157 comments

Raid verifying percentage in check_equallogic

Published on December 4th 2012 - Listed in Nagios Hardware Monitoring - 0 comments

Atmail increasingly uses disk space due to tmp files

Published on November 30th 2012 - Listed in Linux Mail - 0 comments

Get MySQL Status - but only some values

Published on November 28th 2012 - Listed in Database Linux Shell MySQL - 2 comments

Google can also have server problems - Error 503 on latitude

Published on November 22nd 2012 - last updated on April 29th 2022 - Listed in Internet Rant - 0 comments

Linux Distro Upgrade openSuSE 12.1 to 12.2 - a review

Published on November 8th 2012 - Listed in Linux - 0 comments

Philips' explain their Smart TV possibilities. Or not.

Published on November 5th 2012 - Listed in Internet Personal Rant - 0 comments

Disk failures are not always seen by S.M.A.R.T.

Published on November 4th 2012 - Listed in Linux Hardware Rant - 1 comments

mailx command sends mail body as attachment (noname)

Published on November 2nd 2012 - Listed in Linux Mail - 3 comments

New check_esxi_hardware.py version adds workaround for Dell PE x620

Published on October 27th 2012 - Listed in Nagios Hardware VMware Virtualization Monitoring - 0 comments

Send e-mails from local Postfix to local Exim on same host

Published on October 25th 2012 - Listed in Linux Internet Mail - 0 comments

Testing and comparing new Nagios version (3.2.3 to 4.0/3.99.95)

Published on October 23rd 2012 - Listed in Nagios Monitoring - 0 comments

Check/monitor SMTP server for TLS and SSL connections

Published on October 22nd 2012 - Listed in Linux Nagios Internet Mail Monitoring - 0 comments

check_win_net_usage now handles connection errors

Published on October 19th 2012 - Listed in Nagios Windows Network Monitoring - 2 comments

Analysis with dtrace: Filesystem is full although files were deleted

Published on October 18th 2012 - Listed in Linux Shell - 0 comments

Bugfix for check_win_net_usage wrapper-plugin

Published on October 10th 2012 - Listed in Nagios Windows Network Monitoring - 0 comments

Install imagemagick as PHP extension in Debian without apt

Published on October 6th 2012 - Listed in PHP Linux - 1 comments

Use dtrace to analyze Apache process consuming 100% CPU

Published on October 4th 2012 - Listed in Linux Internet Apache - 3 comments

Download Speed

Published on October 1st 2012 - Listed in Internet Personal - 0 comments

check_esxi_hardware and Dell PowerEdge R620: Riser Config Err 0

Published on September 21st 2012 - Listed in Nagios Hardware VMware Virtualization Monitoring - 2 comments

NVIDIA Quadro NVS 295 running on openSuSE 12 with dual screens

Published on September 20th 2012 - Listed in Hardware Linux - 0 comments

Mass unpacking, racking and cabling of HP ProLiant DL380 servers

Published on September 14th 2012 - Listed in Hardware - 0 comments

Raid percentage bugfix in check_equallogic

Published on September 13th 2012 - Listed in Nagios Hardware Monitoring - 0 comments

GoogleBot used as HTTP Agent by Hackers/Botscripts

Published on September 5th 2012 - Listed in PHP Internet Linux Hacks - 0 comments

Spam-Attacks (possibly Dark Mailer) through abused FTP account within 1s

Published on September 3rd 2012 - Listed in Internet PHP Linux Hacks Mail - 0 comments

Fixed Cleaning Status check in check_ibm_ts_tape.pl

Published on September 1st 2012 - Listed in Nagios Hardware Monitoring - 1 comments

CentOS 6.3 changed device names from /dev/cciss to /dev/sdX

Published on August 29th 2012 - Listed in Linux Hardware - 0 comments

New version of check_ibm_ts_tape.pl released!

Published on August 22nd 2012 - Listed in Nagios Hardware Monitoring - 0 comments

Some notes on a MySQL downgrade 5.1 to 5.0

Published on August 16th 2012 - Listed in Linux Database MySQL - 0 comments

check_equallogic shows status of raid reconstruction

Published on August 16th 2012 - Listed in Nagios Hardware Monitoring - 0 comments

Script to calculate/show percentage of current year passed

Published on August 13th 2012 - Listed in Linux PHP Shell Coding - 0 comments

Share your desktop with VNC server on Linux (openSuSE 12.1)

Published on August 12th 2012 - Listed in Linux Network - 0 comments

Cyanogenmod 9 (CM9) marked as stable - Galaxy S2 build coming

Published on August 10th 2012 - Listed in Android - 0 comments

Postfix: Enforce sending encrypted e-mails with TLS (smtp over TLS)

Published on August 3rd 2012 - Listed in Linux Internet Mail - 1 comments

How to mount Android (MTP)-Storage on Linux (openSuSE 12.1)

Published on July 27th 2012 - Listed in Android Linux - 10 comments

Fixing slow Wireless LAN - the damn Multicast Rate setting

Published on July 25th 2012 - Listed in Internet Windows Android Hardware Personal Rant - 3 comments

How to replace a hard or solid state drive in Linux software raid with mdadm

Published on July 25th 2012 - last updated on September 21st 2023 - Listed in Linux Hardware - 0 comments

Joomla forms (PHPMailer) do not work with mini_sendmail

Published on July 17th 2012 - Listed in Internet PHP Linux Mail - 0 comments

VMware fixes slow hardware status bug

Published on July 17th 2012 - Listed in VMware Nagios Virtualization Monitoring - 3 comments

PHP mail() not working in chroot vhost (Could not execute mail delivery...)

Published on June 22nd 2012 - last updated on July 2nd 2024 - Listed in PHP Linux Mail - 2 comments

Fixing Majordomo/Majorcool error: majordomo.cf Not Readable; Stopped.

Published on June 19th 2012 - Listed in Linux Mail - 0 comments

Testing Roundcube 0.8 Release Candidate (plugin compatibility)

Published on May 27th 2012 - Listed in PHP Mail Roundcube - 0 comments

How to install a KMS license server for Office 2010

Published on May 25th 2012 - Listed in Windows Network - 1 comments

Add SLES11-SP2(-Updates) to Novell SMT Repository Mirroring

Published on May 23rd 2012 - Listed in Linux Internet - 2 comments

Solving Bind9 reload errors after Debian upgrade to Squeeze

Published on May 17th 2012 - Listed in Linux - 0 comments

Proftpd: 530 Login incorrect due to invalid shell

Published on May 14th 2012 - Listed in Linux Internet - 2 comments

NTP servers should be physical

Published on May 14th 2012 - Listed in Linux - 2 comments

Webalizer Statistics stopped working after Debian upgrade

Published on May 7th 2012 - Listed in Internet Linux - 0 comments

Using aptitude/apt-get with Proxy Authentication

Published on May 4th 2012 - Listed in Linux Network - 1 comments

Bugfix in check_equallogic (info check)

Published on May 3rd 2012 - Listed in Nagios Hardware Monitoring - 0 comments

VMware creates new KB entry for slow hardware status bug

Published on May 2nd 2012 - Listed in VMware Virtualization - 0 comments

Bugfix in check_esxi_hardware (Manufacturer discovery)

Published on May 1st 2012 - Listed in Nagios VMware Hardware Virtualization Monitoring - 0 comments

Monitor Equallogic Snapshots with check_equallogic

Published on April 30th 2012 - Listed in Nagios Hardware Monitoring - 0 comments

Linux server crash due to defect memory

Published on April 27th 2012 - Listed in Linux Rant - 0 comments

New Gmail Layout: Show labeled text buttons again

Published on April 24th 2012 - Listed in Internet Mail Cloud - 0 comments

How to force Xinha to write <br> instead of <br />

Published on April 23rd 2012 - Listed in Internet HTML - 0 comments

Manage Confixx SpamAssassin User Settings in Roundcube

Published on April 20th 2012 - Listed in Internet PHP Mail Roundcube - 0 comments

Robocopy vs. Richcopy

Published on April 18th 2012 - Listed in Windows Network - 8 comments

NetBackup init script for 32bit Linux (SLES)

Published on April 11th 2012 - Listed in Backup Linux - 1 comments

New/rewritten pool checks in check_equallogic

Published on April 6th 2012 - Listed in Nagios Hardware Monitoring - 0 comments

Updated Dell warranty urls in check_esxi_hardware plugin

Published on April 5th 2012 - Listed in Nagios VMware Virtualization Monitoring - 0 comments

Linux crash after 208+ days due to bug in kernel 2.6.32

Published on April 4th 2012 - Listed in Linux Rant - 2 comments

Nagios plugin check_esxi_hardware is now available as OpenBSD port

Published on April 2nd 2012 - Listed in Nagios VMware Virtualization Monitoring - 0 comments

Anti-(Blog)-Spamming technologies: Captcha vs. Questions

Published on April 1st 2012 - Listed in Internet Personal Mail - 1 comments

Monitor how many (virtual) tapes are left available in Datadomain

Published on March 29th 2012 - Listed in Nagios Hardware Backup Monitoring - 0 comments

New website frischer-wind-im-thurgau.ch online

Published on March 26th 2012 - Listed in Personal Internet - 0 comments

Slow hardware discovery/check with ESXi 5.0 U1

Published on March 21st 2012 - Listed in VMware Nagios Virtualization Monitoring - 6 comments

New plugin to monitor IBM System Storage TS Tape Libraries

Published on March 19th 2012 - Listed in Nagios Hardware Monitoring - 0 comments

Solve NetBackup error 2817 (FlashBackup-Windows policy restore error)

Published on March 16th 2012 - Listed in VMware Backup Windows - 0 comments

NetBackup errors (get_string() failed) appear in Report-Problems

Published on March 13th 2012 - Listed in Windows Nagios Backup Monitoring - 0 comments

Nagios plugin check_disk_smb outputs: Result from smbclient not suitable

Published on March 9th 2012 - last updated on March 18th 2021 - Listed in Nagios Linux Monitoring - 1 comments

Basic math calculations with fields in MySQL query (output in new column)

Published on March 7th 2012 - Listed in Linux Database MySQL - 0 comments

How to solve SuSE SMT errors (Access to http URIs has been disabled)

Published on March 6th 2012 - Listed in Linux - 1 comments

Install Cyanogenmod 9 (Android 4.0 Ice Cream Sandwich) on Samsung Galaxy S2

Published on March 3rd 2012 - Listed in Android - 7 comments

The fun of video-surveillance

Published on February 24th 2012 - Listed in Personal Internet Surveillance - 0 comments

How to use Joomla's FTP mode (set correct $ftp_root path)

Published on February 23rd 2012 - Listed in Internet CMS - 0 comments

Exchange 2003: Virtual memory fragmentation errors (Event ID's 9582, 12800)

Published on February 20th 2012 - Listed in Windows Mail - 0 comments

How to convert ext2 file system to ext3

Published on February 14th 2012 - last updated on April 29th 2022 - Listed in Linux - 0 comments

Cold, colder, hatchuum

Published on February 7th 2012 - Listed in Personal Rant - 0 comments

Upgrade of VPS server (Xen) from Debian Lenny to Squeeze (MySQL problems)

Published on February 4th 2012 - Listed in Linux MySQL Database - 0 comments

Monitor Windows remote connections (RDP or ICA)

Published on January 31st 2012 - Listed in Nagios Windows Network Virtualization Monitoring - 4 comments

Joomla CMS hacks by using vulnerability in com_fabrik

Published on January 26th 2012 - Listed in Internet PHP Hacks Security - 4 comments

Performance data added to volumes check in check_equallogic

Published on January 25th 2012 - Listed in Nagios Hardware Monitoring - 0 comments

Bugfix in check_equallogic (volumes check)

Published on January 23rd 2012 - Listed in Nagios Hardware Monitoring - 0 comments

Nagios plugin check_procs misses perfdata and how you can add it

Published on January 18th 2012 - Listed in Nagios Linux Monitoring - 2 comments

Current project: Website for political candidate

Published on January 14th 2012 - Listed in Internet Personal - 0 comments

Minor update of check_equallogic (info and temp check)

Published on January 5th 2012 - Listed in Nagios Hardware Monitoring - 0 comments

How to solve locale error: perl: warning: Setting locale failed.

Published on January 2nd 2012 - Listed in Linux - 0 comments

Roundcube: PHP Error: Failed to load plugin file on PHP 5.3.8

Published on December 29th 2011 - Listed in PHP Roundcube - 0 comments

Minor update of Nagios plugin check_mysql_slavestatus

Published on December 27th 2011 - Listed in Nagios Database MySQL Monitoring - 0 comments

How to forward USB device to a virtual machine

Published on December 21st 2011 - Listed in Windows VMware Network Virtualization Hardware - 0 comments

Dell OMSA + ESXi 5.0 is now working!

Published on December 19th 2011 - Listed in VMware Nagios Hardware Virtualization Monitoring - 1 comments

Deprecated PHP Warnings after Confixx upgrade to 3.3.9

Published on December 15th 2011 - Listed in Linux PHP - 1 comments

Apache mod comparison: mod_php vs mod_suphp vs mod_fcgid vs mod_fastcgi

Published on December 4th 2011 - last updated on March 22nd 2019 - Listed in Linux PHP Internet Apache - 2 comments

EOL of my SIMM

Published on December 1st 2011 - Listed in Personal Android - 0 comments

Another bugfix in check_KAV.bat

Published on November 29th 2011 - Listed in Nagios Windows Monitoring - 0 comments

Check Kaspersky Server License Expiration with Nagios

Published on November 28th 2011 - Listed in Nagios Windows Monitoring - 0 comments

How to read and write an NTFS external disk on a MAC OS X

Published on November 25th 2011 - Listed in Mac Apple - 0 comments

check_esx3.pl Nagios plugin error (Server version unavailable)

Published on November 25th 2011 - Listed in Nagios VMware Linux Virtualization Monitoring - 2 comments

New Nagios plugin: check_win_net_usage

Published on November 22nd 2011 - Listed in Nagios Windows Network Monitoring - 4 comments

SLES11SP1 asks for db-devel - but there isn't any

Published on November 21st 2011 - Listed in Linux Database - 2 comments

How to monitor Windows network traffic with Nagios

Published on November 16th 2011 - last updated on March 27th 2020 - Listed in Nagios Windows Network Monitoring - 26 comments

Update on the timthumb Wordpress hack - it happened again!

Published on November 12th 2011 - Listed in Linux PHP Internet Hacks - 0 comments

Wordpress timthumb hack - a PHP hack story

Published on November 9th 2011 - Listed in Linux PHP Hacks Wordpress - 0 comments

check_esxi_hardware + ESXi 5.0 + DELL OMSA = FAIL

Published on November 8th 2011 - Listed in Nagios Hardware VMware Virtualization Monitoring - 19 comments

When vSphere client does not show performance graphs anymore

Published on November 5th 2011 - last updated on July 11th 2024 - Listed in VMware Virtualization - 0 comments

New versions of check_storcenter and check_equallogic

Published on October 31st 2011 - Listed in Nagios Hardware Monitoring - 0 comments

When ndc and bind reload won't work (ndc: error: ctl_client)

Published on October 27th 2011 - Listed in Linux - 0 comments

Problems when compiling PHP 5.3.8 with fpm and fastcgi (php-cgi)

Published on October 26th 2011 - Listed in PHP Linux - 0 comments

First minor update of check_storcenter

Published on October 20th 2011 - Listed in Nagios Hardware Monitoring - 0 comments

Firefox 7 cuts http:// from adress bar (and how to restore it)

Published on October 15th 2011 - last updated on March 27th 2020 - Listed in Internet - 0 comments

Bugfix in check_equallogic and new Nagios plugin: check_storcenter

Published on October 13th 2011 - Listed in Nagios Hardware Monitoring - 1 comments

Create automatic ftp transfer script behind proxy on Windows

Published on October 11th 2011 - Listed in Windows Network - 2 comments

Kernel (2.6.32-5-amd64) upgrade problem on Debian Squeeze (solved)

Published on October 8th 2011 - Listed in Linux - 0 comments

Ignore option now possible in check_esxi_hardware plugin

Published on October 6th 2011 - Listed in Nagios VMware Virtualization Monitoring - 0 comments

New Nagios plugin: check_weblogic_heap

Published on October 3rd 2011 - Listed in Nagios Monitoring - 0 comments

How to install perl DBD::Oracle on SLES10 (without CPAN)

Published on September 27th 2011 - Listed in Linux Database - 0 comments

Windows help is very helpful... somewhat

Published on August 21st 2011 - Listed in Internet Windows Rant - 0 comments

Certified Linux Engineer

Published on August 19th 2011 - Listed in Personal Linux - 0 comments

SMTP Internet provider interception - I do not like it.

Published on August 16th 2011 - Listed in Internet Mail Network Rant - 0 comments

Spam comparison: Ironport vs. Open Source solution

Published on August 12th 2011 - Listed in Linux Internet Mail - 1 comments

New (and final) version of check_equallogic released

Published on August 8th 2011 - Listed in Nagios Hardware Monitoring - 0 comments

Possibility to check disk pool utilization on Equallogic

Published on August 4th 2011 - Listed in Nagios Hardware Monitoring - 1 comments

Upgraded to PHP 5.3: Suddenly open_basedir restriction warnings appear

Published on August 3rd 2011 - Listed in PHP Linux - 0 comments

PHP 5.3.6 configure fails: libjpeg.(a|so) or libpng.(a|so) not found

Published on August 3rd 2011 - Listed in PHP Linux - 0 comments

Confixx upgrade 3.3.6 -> 3.3.8: Some notes

Published on July 29th 2011 - Listed in Linux PHP - 0 comments

PHP compilation fails on IMAP U8T_DECOMPOSE: The Debian solution

Published on July 26th 2011 - Listed in PHP Linux - 0 comments

Improved disk check on check_equallogic Nagios plugin

Published on July 25th 2011 - Listed in Nagios Hardware Monitoring - 0 comments

Comparing SSH port forwarding Linux vs. Mac OS X

Published on July 21st 2011 - last updated on September 23rd 2020 - Listed in Linux Shell Macintosh - 0 comments

When Nagios notification mails show wrong host alias

Published on July 20th 2011 - Listed in Nagios Monitoring - 4 comments

Bad luck or bad manufacturing?

Published on July 19th 2011 - Listed in Hardware Rant - 2 comments

Facebook RSS Import fails and what you can do against it

Published on July 17th 2011 - Listed in Internet Rant - 0 comments

Mount a HDD which is a member in Intel Raid to back up data

Published on July 8th 2011 - Listed in Windows Hardware Linux - 0 comments

Printing issues on Mac OS X 10.6 after upgrade to Snow Leopard

Published on July 5th 2011 - Listed in Hardware Apple Office Rant - 0 comments

USB3 problems with Asus P8H67-M EVO and Windows 7 64bit [solved]

Published on June 30th 2011 - Listed in Hardware Windows - 3 comments

How to dump and restore a Postgres database

Published on June 24th 2011 - Listed in Linux Database Postgres - 0 comments

Perfdata now in check_mysql_slavestatus

Published on June 22nd 2011 - Listed in Linux Nagios Database MySQL Monitoring - 0 comments

Intelligent Blog-Spamming

Published on June 21st 2011 - Listed in Internet Personal - 0 comments

What the countdown 'until Death of Computers' means (the Y2K38 problem)

Published on June 17th 2011 - last updated on November 15th 2023 - Listed in Personal Internet Linux Unix - 3 comments

check_esxi_hardware now reads file for username AND password

Published on June 14th 2011 - Listed in VMware Nagios Hardware Virtualization Monitoring - 0 comments

How to enable http access logs in Tomcat

Published on June 9th 2011 - Listed in Linux Tomcat - 0 comments

Testing some Swiss Online-Shops for Hardware Upgrade

Published on June 7th 2011 - Listed in Personal Hardware Internet - 0 comments

HP's customized ESXi 4.1U1 fails on HP BL460C (Gen1)

Published on June 6th 2011 - Listed in VMware Nagios Hardware Virtualization Monitoring - 3 comments

Upgraded to Gingerbread (2.3): SMS/MMS won't be shown anymore

Published on June 2nd 2011 - Listed in Android - 2 comments

Postfix rewrite mail address ONLY for outgoing/sending e-mail

Published on June 1st 2011 - Listed in Linux Mail - 0 comments

How to remove grey borders on Wyse ICA/Citrix connection

Published on May 27th 2011 - Listed in Wyse Windows Virtualization - 0 comments

Modified Nagios Plugin check_dell_warranty (Adapted to euro website)

Published on May 26th 2011 - Listed in Nagios Internet Hardware Monitoring - 1 comments

Howto change default MySQL privileges/permissions in Confixx

Published on May 24th 2011 - Listed in Linux Internet Database MySQL - 0 comments

Hotmail took more than one year to send an e-mail!

Published on May 23rd 2011 - Listed in Internet Mail - 0 comments

Bugfix for IBM Blade Servers in check_esxi_hardware

Published on May 20th 2011 - Listed in Nagios VMware Hardware Virtualization Monitoring - 0 comments

Nagios plugin check_esxi_hardware updated and comments on blog

Published on May 19th 2011 - Listed in Nagios VMware Internet Hardware Monitoring - 0 comments

Gotcha, little bugger (Wyse WTOS 7 DomainList and SelectGroup bug)

Published on May 17th 2011 - Listed in Hardware Virtualization Wyse - 0 comments

Bugfixes and password from file possibility in check_esxi_hardware

Published on May 5th 2011 - Listed in Nagios VMware Virtualization Monitoring - 0 comments

Major update of check_esxi_hardware Nagios plugin

Published on May 3rd 2011 - Listed in Nagios VMware Virtualization Monitoring - 0 comments

Everything bad has to die some day

Published on May 2nd 2011 - Listed in Hardware Rant - 0 comments

Nagios plugin check_esxi_hardware now also for IBM servers

Published on April 26th 2011 - Listed in Nagios VMware Virtualization Monitoring - 0 comments

Firefox Sync is a blast!

Published on April 25th 2011 - Listed in Internet Personal - 0 comments

Apache does not start after OTRS upgrade

Published on April 14th 2011 - Listed in Linux Apache - 0 comments

ALL = Archive, and this is post 150!

Published on April 11th 2011 - Listed in Personal Internet - 0 comments

New/Rewritten temperature check in check_equallogic

Published on April 7th 2011 - Listed in Nagios Hardware Monitoring - 0 comments

check_equallogic: Bugfix in volumes and etherrors thresholds

Published on April 4th 2011 - Listed in Nagios Hardware Network Monitoring - 0 comments

check_equallogic now catches ethernet packet errors

Published on March 28th 2011 - Listed in Nagios Hardware Network Monitoring - 0 comments

The fight to install HP Mgmt Agents and System Management Homepage

Published on March 24th 2011 - Listed in Hardware Linux Rant - 2 comments

Lost check type 'temp' added again to check_equallogic

Published on March 23rd 2011 - Listed in Nagios Hardware Monitoring - 0 comments

How to extend disksize in virtual Windows server

Published on March 21st 2011 - Listed in Windows VMware Virtualization - 0 comments

Object moved. Is it?

Published on March 16th 2011 - Listed in Internet Personal Rant - 0 comments

Some minor changes in check_equallogic plugin

Published on March 15th 2011 - Listed in Nagios Hardware Monitoring - 0 comments

Why Philips DVP 3360 has problems with large DivX files

Published on March 13th 2011 - Listed in Hardware Personal Rant - 0 comments

VMware vSphere 4.1 - General Information about new features

Published on March 6th 2011 - Listed in VMware Virtualization - 0 comments

Nagiosgraph map entries for check_esx plugin (by OP5)

Published on February 28th 2011 - Listed in Nagios VMware Virtualization Monitoring - 5 comments

Tutorial how to use max disk capacity in ESXi 4.1 updated

Published on February 25th 2011 - Listed in VMware Virtualization - 0 comments

Space + Speed = 600GB SAS 15k

Published on February 24th 2011 - Listed in Hardware Virtualization - 0 comments

Helpful tuturials, informations, downloads collected in link list

Published on February 23rd 2011 - Listed in Internet - 0 comments

check_esxi_wbem is now check_esxi_hardware

Published on February 21st 2011 - Listed in Nagios VMware Virtualization Monitoring - 0 comments

HP Color LaserJet 2600n prints red 'background'

Published on February 20th 2011 - Listed in Hardware Office - 0 comments

check_esxi_wbem now handles timeouts

Published on February 15th 2011 - Listed in Nagios VMware Virtualization Monitoring - 0 comments

Googlebot and Apache CLOSE_WAIT's: SOLVED!

Published on February 7th 2011 - Listed in Linux Internet Apache - 0 comments

New version of check_esxi_wbem (Intel server bugfix)

Published on February 7th 2011 - Listed in Nagios Hardware Virtualization Monitoring - 0 comments

Confixx manual mail aliases in /etc/aliases

Published on February 4th 2011 - Listed in Linux - 0 comments

Googlebot freezes Apache and server load increases

Published on February 3rd 2011 - Listed in Linux Internet Apache - 0 comments

Apache segfault on phpinfo after PHP update (eAccelerator)

Published on January 29th 2011 - Listed in PHP Linux Apache - 0 comments

On a Hacker's trail

Published on January 25th 2011 - Listed in Internet Linux PHP Hacks - 2 comments

Install CyanogenMod (Froyo 2.2) on Motorola Milestone A853

Published on January 12th 2011 - Listed in Android - 2 comments

Version 20110110 of check_esxi_wbem.py released

Published on January 10th 2011 - Listed in Nagios VMware Virtualization Monitoring - 0 comments

Completely renewed delapacheuserfiles.php

Published on January 7th 2011 - Listed in PHP Apache - 0 comments

Enormous load by OTRS 3

Published on January 4th 2011 - Listed in Linux - 0 comments

When Nagiosgraph shows gaps/empty spaces in stats

Published on December 14th 2010 - Listed in Nagios Monitoring - 0 comments

iPhone picture mails tagged as Spam

Published on December 10th 2010 - Listed in Internet Linux Mail - 0 comments

Nagiosgraph from NSClient++ (Windows) Checks

Published on December 8th 2010 - Listed in Nagios Windows Monitoring - 2 comments

Major Update of check_equallogic: Volumes check

Published on December 2nd 2010 - Listed in Nagios Hardware Monitoring - 0 comments

Exchange 2007: Find the mailbox or folder of an e-mail address

Published on December 2nd 2010 - Listed in Windows Mail - 0 comments

How to create automatic PDF from Nagios Availability Reports?

Published on December 1st 2010 - Listed in Nagios Linux Monitoring - 8 comments

Where did the mcrypt command on SLES10 go?

Published on November 9th 2010 - Listed in Linux - 0 comments

Added 'fan' type in check_equallogic

Published on November 2nd 2010 - Listed in Nagios Hardware Monitoring - 0 comments

Using check_esxi_hardware with non-root user in ESXi 4.1

Published on October 27th 2010 - last updated on February 6th 2023 - Listed in Nagios VMware Virtualization Monitoring - 8 comments

New version 20101026 of check_equallogic

Published on October 26th 2010 - Listed in Nagios Hardware Monitoring - 0 comments

And I still hate Blade Servers

Published on October 25th 2010 - Listed in Hardware Rant - 0 comments

First fights with UCS -> Port Channel Uplink doesn't work [solved]

Published on October 22nd 2010 - Listed in Hardware Network - 6 comments

VMware Snapshot not possible: Another task is already in progress.

Published on September 29th 2010 - Listed in VMware Virtualization - 0 comments

Windows, IIS and the damn SSL certificates

Published on September 28th 2010 - Listed in Windows SSL Rant - 0 comments

Wyse TCX Multi-Display + VM on ESXi 4.1 + CRM 4.0 = Evil combination

Published on September 22nd 2010 - Listed in Windows Wyse Virtualization - 0 comments

Magical ethernet interface (network card not detected - electrical circuit issue?)

Published on September 19th 2010 - Listed in Hardware Personal Network Rant - 0 comments

Dell supports people from a country called ... Second Life

Published on September 15th 2010 - Listed in Internet Rant - 0 comments

SLES 11 SP1 contains VMware vmxnet3 and paravirtual drivers

Published on September 13th 2010 - Listed in VMware Linux Virtualization - 0 comments

Hello Cisco UCS, goodbye SUN!

Published on September 10th 2010 - Listed in Hardware - 0 comments

ESXi 4.1 and the disk capacity... Update!

Published on September 3rd 2010 - Listed in VMware Hardware Linux Virtualization - 0 comments

Yes, you have maintenance, but not for batteries

Published on September 3rd 2010 - Listed in Hardware Internet Rant - 0 comments

iSeries/AS400 Disk Expansion Installation

Published on August 26th 2010 - Listed in Hardware - 0 comments

100

Published on August 25th 2010 - Listed in Personal - 0 comments

The tabulator in bash

Published on August 23rd 2010 - Listed in Linux Shell Coding - 0 comments

Flying Cat Part II

Published on August 19th 2010 - Listed in Personal - 0 comments

HowTo Change Confixx email account password in Roundcube

Published on August 14th 2010 - Listed in Internet Linux PHP Database MySQL Roundcube - 0 comments

Connection type fix in new version of check_equallogic

Published on August 12th 2010 - Listed in Nagios Hardware Monitoring - 0 comments

Veeam Backup & Replication 4.1.2 now likes Virtual Center 4.1

Published on August 11th 2010 - Listed in VMware Virtualization - 0 comments

Windows in public

Published on July 29th 2010 - Listed in Windows Personal Rant - 0 comments

ESXi 4.1 does not use full disk capacity for vmfs3

Published on July 22nd 2010 - Listed in VMware Linux Virtualization - 0 comments

Veeam Backup & Replication 4.1 doesn't like new VCenter servers

Published on July 19th 2010 - Listed in VMware Virtualization - 0 comments

When Windows 2003 setup cannot find the (SAS-)disks...

Published on July 16th 2010 - Listed in Windows Hardware - 1 comments

Zip-Unpacking problems with Amavisd-new 2.6.4

Published on July 7th 2010 - Listed in Linux Mail - 0 comments

New version 20100705 of check_esxi_wbem

Published on July 5th 2010 - Listed in Nagios VMware Hardware Virtualization Monitoring - 0 comments

Hardware Status tab in vSphere client disappeared

Published on July 5th 2010 - Listed in VMware Virtualization - 0 comments

New version 20100630 of check_equallogic released

Published on June 30th 2010 - Listed in Nagios Hardware Monitoring - 0 comments

New version 20100628 of check_esxi_wbem

Published on June 28th 2010 - Listed in Nagios VMware Hardware Virtualization Monitoring - 0 comments

Exchange says 550 5.7.1 authentication required and rejects mail

Published on June 25th 2010 - Listed in Windows Mail - 0 comments

Hands on Dell PowerVault 124t (LTO5)

Published on June 9th 2010 - Listed in Hardware - 0 comments

check_confixxlicense does not check Confixx MAC-address

Published on June 8th 2010 - Listed in Nagios Monitoring - 0 comments

I don't believe you!

Published on June 3rd 2010 - last updated on April 29th 2022 - Listed in Personal Rant - 0 comments

The iPad has arrived - and this is serious!

Published on May 28th 2010 - Listed in Hardware Internet Personal Android Apple Rant - 0 comments

New version 20100526 of check_equallogic available

Published on May 28th 2010 - Listed in Nagios Hardware Monitoring - 0 comments

Swisscom ADSL started to block port 25

Published on May 25th 2010 - Listed in Internet Android Network Rant - 0 comments

VMware: vMotion stops at 10% and fails with Invalid fault

Published on May 24th 2010 - Listed in VMware Linux Virtualization - 0 comments

Wyse support: Frustration guaranteed

Published on May 18th 2010 - Listed in Hardware Wyse Virtualization Rant - 0 comments

New (modified) Nagios plugin to check hardware on ESXi

Published on May 13th 2010 - Listed in Nagios VMware Virtualization Monitoring - 0 comments

What might be the best Blade system?

Published on May 5th 2010 - Listed in Hardware Internet Rant - 0 comments

HP re-releases ESXi Offline Bundle 1.3

Published on May 4th 2010 - Listed in Hardware VMware - 0 comments

HP ESXi Offline Bundle 1.3 - not working and disappeared?

Published on April 29th 2010 - Listed in Hardware VMware Virtualization Rant - 0 comments

Follow-up on using NTLM on Windows 7 for Proxy Authentication

Published on April 28th 2010 - Listed in Windows Proxy Network - 0 comments

Follow-up on Connection Error when trying to send mail on Android

Published on April 26th 2010 - Listed in Android Linux Mail - 0 comments

Connection failed error when trying to send mail on Android

Published on April 22nd 2010 - Listed in Android Linux Mail Rant - 0 comments

New version of check_equallogic released

Published on April 20th 2010 - Listed in Nagios Hardware Monitoring - 0 comments

Why -while read line- does not work with stdout

Published on April 16th 2010 - Listed in Linux Shell Coding - 0 comments

New Nagios Plugin: Check Confixx License

Published on April 3rd 2010 - Listed in Nagios Linux Internet Monitoring - 0 comments

HowTo Upgrade Debian etch to lenny (and solve Apache warnings)

Published on March 29th 2010 - Listed in Linux Apache - 0 comments

Google Gears a Virus (Trojan.Downloader-90750) ?

Published on March 24th 2010 - Listed in Internet - 1 comments

PHP Compilation fails after upgrade to Debian lenny

Published on March 19th 2010 - Listed in PHP Linux - 0 comments

Dear LiteON support

Published on March 18th 2010 - Listed in Hardware Rant - 0 comments

$* is no longer supported - Confixx Counterscript error

Published on March 15th 2010 - Listed in Linux Mail - 0 comments

Confixx Counterscript fails after Debian Upgrade (Lenny)

Published on March 15th 2010 - Listed in Linux Internet - 0 comments

The HP Blade nightmare continues

Published on March 3rd 2010 - Listed in Hardware Rant - 0 comments

HTTP Forward using path variable with JavaScript

Published on February 22nd 2010 - Listed in Internet - 0 comments

Changes in Sun Customer Support since Oracle took over

Published on February 16th 2010 - Listed in Hardware Internet Rant - 1 comments

VMware: Schedule automatic reboot or shutdown of physical ESX(i) server

Published on February 12th 2010 - Listed in VMware Linux Virtualization - 2 comments

Argh - already a bugfix for delapacheuserfiles.php

Published on January 18th 2010 - Listed in PHP Apache - 0 comments

How to delete files created by Apache user?

Published on January 16th 2010 - last updated on November 23rd 2023 - Listed in PHP Apache - 0 comments

Gmail now supports sending from external e-mail addresses

Published on January 11th 2010 - Listed in Internet Mail - 0 comments

Installing Zend Optimizer on PHP 5.2.11 and Apache worker

Published on January 10th 2010 - Listed in PHP Linux Apache - 0 comments

Dell's official answer and bugfix of Equallogic plugin

Published on January 8th 2010 - Listed in Nagios Hardware Monitoring - 0 comments

check_equallogic with more than one member

Published on December 10th 2009 - Listed in Nagios Hardware Monitoring - 0 comments

Immediate Availability of check_equallogic

Published on November 21st 2009 - Listed in Nagios Hardware Monitoring - 0 comments

Good support, bad support

Published on November 20th 2009 - Listed in Hardware Internet Rant - 0 comments

Using NTLM on Windows 7

Published on November 11th 2009 - Listed in Windows Proxy - 0 comments

Nagios Plugin for Dell Equallogic

Published on November 9th 2009 - Listed in Nagios Hardware Monitoring - 0 comments

Wintertime

Published on October 25th 2009 - Listed in Personal - 0 comments

Postfix rejects incoming e-mails with 450 Server configuration error

Published on October 21st 2009 - Listed in Linux Mail - 0 comments

Fighting Spam with SpamAssassin

Published on September 22nd 2009 - Listed in Internet Linux Mail - 0 comments

Atelier2.ch is 10 years online!

Published on September 5th 2009 - Listed in Internet - 0 comments

Flying cat

Published on August 19th 2009 - Listed in Personal - 0 comments

A black VMware Weekend (Upgrade ESX 3.5 to ESX 4.0)

Published on August 13th 2009 - Listed in VMware Virtualization - 0 comments

Ghostbusters return!

Published on July 21st 2009 - last updated on April 29th 2022 - Listed in Personal Rant - 0 comments

Eureka is back!

Published on July 18th 2009 - Listed in Personal - 0 comments

Testing a new Mailserver

Published on June 22nd 2009 - Listed in Internet Linux Mail - 0 comments

New mobile phone - a difficult decision

Published on June 19th 2009 - Listed in Personal Hardware - 0 comments

Ready for the new challenge!

Published on April 30th 2009 - Listed in Personal - 0 comments

Funny support call!

Published on March 19th 2009 - Listed in Personal Internet Windows - 0 comments

Windows 7 - the second try and a love story (?)

Published on March 10th 2009 - Listed in Windows - 0 comments

Testing Windows 7 - how?

Published on February 25th 2009 - Listed in Windows Rant - 0 comments

I've refound my favourite childhood movies!

Published on February 17th 2009 - Listed in Personal Internet - 0 comments

How to use wired LAN and WLAN without problems

Published on February 15th 2009 - Listed in Internet Windows Network - 0 comments

VMware problem: Cannot open virtual disk for clustering

Published on January 30th 2009 - Listed in VMware Virtualization - 0 comments

The calmness before the violations (Anti WEF)

Published on January 29th 2009 - Listed in Personal Rant - 0 comments

Danger in the Rush Hour!

Published on January 28th 2009 - Listed in Personal - 0 comments

My part of Obama's Inauguration: A chocolate bar!

Published on January 22nd 2009 - Listed in Personal - 0 comments

PHP 5.2.8 is out! hmmm...

Published on December 12th 2008 - Listed in PHP - 0 comments

Wrong latin1 Umlaut entries with phpMyAdmin 3.1.0

Published on December 4th 2008 - Listed in PHP Database MySQL - 0 comments

Why I hate Blade servers

Published on November 30th 2008 - Listed in Hardware Personal - 0 comments

Pictures of USA-trip 2008 online

Published on November 25th 2008 - Listed in Personal - 0 comments

Snow!

Published on November 23rd 2008 - Listed in Personal - 0 comments

Changes in news/blog display

Published on November 22nd 2008 - Listed in Internet Personal - 0 comments

Google Mail (GMail) now with different themes (layouts)

Published on November 20th 2008 - Listed in Internet Mail - 0 comments

VI Client can't create snapshots anymore

Published on November 16th 2008 - Listed in VMware Virtualization - 0 comments

Asus EAH 2400 Pro shows videos in green - solved

Published on November 7th 2008 - Listed in Windows Hardware - 0 comments

The chance to prove your wiseness or stupidity

Published on November 4th 2008 - Listed in Personal - 0 comments

Welcome to Switzerland, future!

Published on October 28th 2008 - Listed in Personal - 0 comments

Cleanup Confixx after a server transfer

Published on October 21st 2008 - Listed in Linux MySQL Database - 0 comments

Update of Nagios Plugin check_mysql_slavestatus.sh

Published on October 16th 2008 - Listed in Nagios Shell MySQL Monitoring Database - 0 comments

PHP make install on a Debian system with Apache 2

Published on October 13th 2008 - Listed in PHP Linux Shell Apache - 0 comments

Microsoft Data Access Components not compatible with XP SP3!!

Published on October 3rd 2008 - Listed in Windows Rant - 0 comments

What to do when your VMware VI Client is in German

Published on September 25th 2008 - Listed in VMware Virtualization - 0 comments

Back from vacation and exciting last week

Published on September 22nd 2008 - Listed in Personal - 0 comments

Computer = Style

Published on August 5th 2008 - Listed in Personal Internet Hardware - 0 comments

Firefox 3 crash when trying to play a Flash video

Published on July 10th 2008 - Listed in Windows Internet - 0 comments

Hot times, summer in the city

Published on June 25th 2008 - Listed in Personal Bluecoat Proxy - 0 comments

Current project: Webserver Transfer

Published on June 19th 2008 - Listed in Linux PHP Personal - 0 comments

After the lost game...

Published on June 10th 2008 - Listed in Personal - 0 comments

One day left and the game starts

Published on June 6th 2008 - Listed in Personal - 0 comments

New How To's

Published on June 4th 2008 - Listed in VMware PHP Linux Shell Internet - 0 comments

UEFA Euro, I'm coming!!

Published on May 29th 2008 - Listed in Personal - 0 comments

Welcome to claudiokuenzler.com !

Published on May 26th 2008 - Listed in Personal Internet - 0 comments