Symptoms
After upgrading BIG-IP software, zrd fails to start.
There are errors in /var/log/daemon.log:
err named[19356]: open: /config/named.conf: permission denied
Impact
DNS service disrupted as zrd fails to start after reboot.
Conditions
This can occur after upgrading, for example, when upgrading from version 14.1.0.6 to 15.0.1.1.
Workaround
Run the following command after upgrading:
restorecon -rF /var/named/
