I have an Apache 2.2.8 install running on a Fedora Core 7 box. The server runs fine, and has been serving multiple name-based virtual hosts without problems for several months.
The 'httpd.conf' file contains a single Listen instruction, of the form:
Listen 80
My server currently has three IPs configured on the NIC, and because the configuration doesn't specify an IP, it listens on all of them. I'd like to restrict Apache to using just one.
However, if I change that instruction to
Listen x.x.x.x:80
(where 'x.x.x.x' stands for the actual IP of my server), Apache fails to start up, reporting:
(98)Address already in use: make_sock: could not bind to address x.x.x.x:80
no listening sockets available, shutting down
Restoring the original Listen instruction allows it to work again.
Shutting down Apache and using netstat to look for anything listening on port 80 doesn't reveal any competitors for port 80. Watching the 'messages' log during Apache startup doesn't show any signs to suggest that selinux is interfering.
Can anyone suggest why this might be occurring, and recommend a fix? Thanks.
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