Firewall configurations with Guarddog
The KDE Guarddog program promises an easy Linux firewall setup with just a few clicks. Guarddog helps inexperienced users secure computers – and even whole networks – against attack.
The IPChains (Linux 2.2) and IPTables (Linux 2.4) tools configure the Linux firewall, but these commandline tools can be slightly cryptic for Linux newcomers. Simon Edwards developed Guarddog  to simplify the task of firewall configuration. Guarddog is a GUI-based configuration utility for managing firewalls. The Guarddog utility is licensed under the GPL and runs on either KDE 2 or KDE 3.
Users can download the stable version 2.2.0 at . Besides the sources, the site has ready-to-run binaries for Mandrake, Red Hat, and Debian. If you want to try out the latest features, try version 2.3.2 from . But before you do, check out the pros and cons in the “For the Brave” box.