The file you'll want to modify is /etc/sysconfig/iptables. Others have already posted the appropriate rules. Make sure you have backups; if you ever run the system-config-security tool again, it'll over write your changes.
You could go one level up that stack and modify /etc/sysconfig/system-config-firewall, but I don't know where the documentation for that is located... -- users mailing list users@lists.fedoraproject.org To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines
