Software :: Apache Won't Start (Gentoo): Could Not Find IPv4 Address

I installed it the standard way using emerge/portage, but it fails to start:

Code:

alpha skyer # /etc/init.d/apache2 start
* Caching service dependencies ... [ ok ]
* Starting apache2 ...
apache2: apr_sockaddr_info_get() failed for alpha
apache2: Could not reliably determine the server's fully qualified domain name, using 127.0.0.1 for ServerName [ !! ]
* ERROR: apache2 failed to start

I'm used to have Apache unable to find pc's FQDN, as I don't set it, and it works without it.

From /var/log/apache2/error.log

Code:

[Sat Jul 23 06:41:12 2011] [alert] (EAI 2)Name or service not known: mod_unique_id: unable to find IPv4 address of "alpha"

Computer has IPv4 address set. I suspect that the nature of the problem is in the fact, that alpha has two network interfaces (it is used as router also). I've checked Apache conf files, but didn't find any meaningful directives to set interface or something similar.