Single floppy disk firewall (forked from Coyote Linux) with many optional features including tiny proxy, dhcp server, traffic shaping, and is controller via an HTTP interface. Runs entirely in RAM without the need for any type of disk drive, but can boot off a floppy, hardisk or cdrom.

On a floppy linux distribution ready to be used as an ip masquerade firewall. Includes basic h323 support.

A firewall configuration utility for Linux. It is aimed at novice to intermediate users who are not experts in TCP/IP networking and security, and those users who don't want the hastle of dealing with cryptic shell scripts and ipchains parameters. GuardDog is designed to be easy to use for those who don't have a full understanding of IP packets, ports and protocols.

A secure operating system that converts a redundant PC into a firewall and VPN gateway. It is webmanaged so no keyboard, monitor, or mouse on the device is needed. It supports Internal ISDN, all popular NICs, all popular connection types (Modem / ISDN / Cable / ADSL / USB ADSL / Ethernet) and also features a fully logging firewall, DHCP server, IPSEC VPN.