"IPCop is a specialized Linux distribution whose sole purpose is
to safeguard the computers and networks it is installed on. The
distro proudly claims, 'The Bad Packets Stop Here.' I recently
installed IPCop 1.4.16 on my SOHO LAN, and found that it
accomplishes what it sets out to do.
"My LAN is constantly in a state of flux, but at a minimum it
contains at least two computers and a wireless access point. I use
the wireless router both for Internet access from my laptop and to
provide access to a Hewlett-Packard network printer that's located
in a spot where a cable would be inconvenient. I add and remove the
odd computer from the mix on an ongoing basis..."