Wikipedia
IPFire
IPFire is a free Linux distribution which acts as a router and firewall in the first instance. It can be maintained via a web interface. The distribution furthermore offers selected server daemons and can easily be expanded to a SOHO server.
IPFire is based on Linux From Scratch and is, like the Endian Firewall, originally a fork from IPCop. Since Version 2, only IPCop's web interface is used.