Everything was fine. Server was up for 90+ days. Updated one virtual server on the CP (changed the DNS MX for the mail server to off-site mail) and then I guess the system restarts Apache automatically, but apache did not restart. All other services are running without issue.
I have tried to restart Apache, have re-booted the server, doubled checked all settings - found that the /etc/hosts only had local hosts listed so manually added the IP and NS. Still can’t start Apache or access any IP address via a browser.
[root@ip-68-178-130-21 ~]# /etc/init.d/httpd restart
Stopping httpd: [FAILED]
Starting httpd: httpd: Could not reliably determine the server’s fully qualified domain name, using ip-68-178-130-21.ip.secureserver.net for ServerName
[FAILED]
Apache restarted but still with warning. I’m still not sure if that was the issue. I have also noticed that the network configuration is not installing the eth0:1 and :2 interfaces after reboot, even though they are listed in the boot config.
One other change I made to get it to restart was in the DNS Client Option - I changed the order to DNS, Hosts, Local Hosts. The previous setting was Localhost, DNS.
So I am running but unsure why I was down for 6 hours.