Firewall is a hacked-together PC that does a little of everything. It acts as a firewall to prevent outsiders from getting into the LAN, does web page serving, and acts as the home security system.

The firewall side of things uses IpTables in Slackware (post-patch, so don't bother...) to route messages to the proper machines on the LAN. A special home-rolled version of Apachee provides a safe way to send out pages (without all the modules turned on). And the system acts as a transparent proxy and DNS cache (so basicly it's a D-Link router so far. ;) It also acts as a local SAMBA server, providing a way to share files, and provides printer services.

The firewall is also made to resist those who try to break into it. Even if someone were to get in, the system is pretty locked down (secure level 4), and the boot kernel and root FS are on an internaly mounted eject-disabled CD-ROM drive. So the worst that could be done is web-page mangling, and/or launch pointing, both of which would be picked up rather quickly. With the press of a button, the drives can be formated, re-installed, and back to a working (hopefuly more secure) state in under 10 minutes.