Hello All,
Arno's IPTABLES firewall is a usefull console based firewall for those who understand firewall concepts but find it difficult to remember the exact syntax of the iptables script. It is available with Debian/K-Ubuntu as an apt repo, but go to the site and download its latest deb package for the latest stable version. Installation is easy and the conf file is easy to edit.
http://rocky.eld.leidenuniv.nl/