Name or service not known: mod_unique_id: unable to find IPv4 address
[Thu Jan 02 05:29:41 2014] [alert] (EAI 2)Name or service not known: mod_unique_id: unable to find IPv4 address of “server hostname”
I have checked the Apache configuration syntax file and it is fine.
root@ [/]# httpd -t
While checking the file “/etc/hosts” the server hostname was incorrect. After correcting the Apache service was working fine.