When i installed redhat 7.3 i chose no firewall option and now the ports are all being denied. I want to enable the firewall and choose a tool like gikkit to enable the ports. how do i enable the firewall. can i do it with kde or gnome or which file to edit. im setting up oracle to connect from win xp to the enterprise manager on the linux server. samba and name resolution are working now with swat. telnet access is working although i should probably switch it to ssh. pls do help.
I would take a look at Firestarter, a GTK-app, to configure your firewall graphically.