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

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

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

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

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

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

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 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

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

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

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

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

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

ELK stack not sending notifications anymore because of DNS cache

Published on November 20th 2018 - Listed in ELK Java DNS - 0 comments

Gandi domain registrar hacked?

Published on July 7th 2017 - Listed in Internet DNS - 0 comments

Unbound DNS not serving reverse lookup for internal addresses

Published on March 20th 2017 - Listed in Linux DNS - 2 comments

Get Unbound DNS lookups working in Ubuntu 16.04 Xenial, understand SERVFAIL

Published on February 16th 2017 - Listed in Linux DNS - 3 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

Ubuntu Desktop: Error resolving, name or service not known (but DNS works!)

Published on November 24th 2015 - Listed in Linux DNS - 0 comments

Cannot update bind9 in Debian? Check for errors in zone config!

Published on October 8th 2015 - Listed in Linux DNS - 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