Additional IPs on my server randomly stopped resolving.

[ohhai]

The server is 6.5 running cPanel.
The issue was resolved after running;
service network restart
However I'm attempting to figure out what was the root cause.
I ran the following;

root@server [~]# grep xx.xx.xx.75 /var/log/messages-20150628
Jun 27 09:29:23 serverX named[53576]: no longer listening on xx.xx.xx.75#53
Jun 27 09:30:30 server named[1626]: listening on IPv4 interface eth0:1, xx.xx.xx.75#53
root@server [~]# grep xx.xx.xx.76 /var/log/messages-20150628
Jun 27 09:29:23 serverX named[53576]: no longer listening on xx.xx.xx.76#53
Jun 27 09:30:30 server named[1626]: listening on IPv4 interface eth0:2, xx.xx.xx.76#53
root@server [~]# grep xx.xx.xx.78 /var/log/messages-20150628
Jun 27 09:29:23 serverX named[53576]: no longer listening on xx.xx.xx.78#53
Jun 27 09:30:30 server named[1626]: listening on IPv4 interface eth0:4, xx.xx.xx.78#53

It seems that dns port may have stopped resolving? I don't know where to proceed from here.

[ohhai]

So it seems to be a networking issue. Hmm, will keep y'all updated.

[gerald_clark]

Your system is configured by cPanel. cPanel does things its way, not CentOS's way.
It also replaces core programs with its own.
You are running a commercial control panel with paid support.
You need to call them when you have problems.