SOFI is a complete firewall solution for OpenBSD that is very easy to install and administer. It allows you to convert a common PC into a router to share an Internet connection among several computers. SOFI allows you to setup an OpenBSD router without learning any arcane syntax or configuration files.
SOFI is written in 100% Perl which eliminates the most common type of security problem: the buffer overflow. It uses privilege separation to provide a safe compartment where the web interface is isolated from the rest of the system. Feature: