"In a recent article, we looked at manually creating a firewall
using iptables , the packet-filtering program built into the Linux
2.4 kernel. Now, we?re going to look at a front-end graphical user
interface (GUI) you can use not only for iptables but for ipchains
"This program is called Firestarter, and it is available for use
in GNOME and KDE environments. Firestarter provides a clean,
powerful interface for quickly creating a firewall and getting it
started. Let's begin by looking at how to install Firestarter.
Then, we'll explain how you can use it to create a simple or
advanced firewall to protect your Linux server..."