bind: Checking a zone record for errors

Bind is the most widely used DNS service software out there, it is the default DNS service for all of the main distributions of Unix/Linux.

While Bind is very popular it is also very tricky sometimes. One of the best ways to see if your edits are good and meet the DNS standards is to run a named-checkzone after editing a zone file and before reloading/restarting bind.

slize:~# named-checkzone /etc/bind/master/
dns_master_load: /etc/bind/master/ CNAME and other data
dns_master_load: /etc/bind/master/ CNAME and other data
dns_master_load: /etc/bind/master/ CNAME and other data
zone loading from master file /etc/bind/master/ failed: CNAME and other data

I got this message because of a misconfiguration around a CNAME. After correcting my zone file this is the output.

slize:~# named-checkzone /etc/bind/master/ loaded serial 1130065411OK
Benjamin Cane
Principal Engineer, Vice President

Benjamin Cane is Principal Engineer at American Express. He has more than 16 years of experience with roles in both systems and software engineering. He leverages both his systems and software skills to build end-to-end platforms. Platforms, purpose built for performance and resiliency. Benjamin is also the author of Red Hat Enterprise Linux - Troubleshooting Guide (2015, Packt Publishing), and he has published many popular articles on topics such as Linux, Docker, Python, Go and Performance Tuning. Thoughts and Opinions expressed in my articles are my own.