CyberDogTech: Debian Firewalls

“Most networks these days run behind some type of network
router/firewall device. Most commonly home office and SOHO networks
use small firewall/routers made by companies such as Linksys,
D-Link, and Netgear to provide their network connectivity. The
problem is these devices are often weak, underpowered, and feature
limited. The solution? Building your own!

“Linux is a wonderfully powerful and versatile operating system.
It can run anything from a full-fledged office workstation, to a
server cluster, to a cell phone. You can also conquer the power of
Linux to create a powerful firewall and router for your home
network. Best of all, the hardware required is cheap, and the
software is free…”