22 Feb
2006
22 Feb
'06
6:20 p.m.
I have a couple CentOS boxes running in our DMZ and although they are running behind a firewall, I'm also running iptables. One thing I cannot do it yum update. What ports are required for this? I have outbound http open and I can browse to sites using firefox.
If I run an ethereal scan the process seems to stop with DNS queries, but I can resolve mirrorlist.centos.org without a problem. Anyone know what the problem could be?
If I stop iptables everything works of course.
Thanks, James