Is your iptables firewall blocking it?
As a test, try temporarily turning off iptables with "/etc/init.d/iptables stop". If cups then works, you'll need to edit your iptables configuration to allow traffic to port 631 through.
Randy Vice wrote:
I can't seem to get port 631 open up via cups. I went and edit the cupsd.conf for it to listen to port 631 then restarted cupsd, but still no go. Is there a config file I'm missing somewhere?