Shoreline Firewall
The Shoreline Firewall (Shorewall) is an iptables based firewall that can be used on a dedicated firewall system, a multi-function masquerade gateway/server or on a standalone Linux system.
Discover How To Secure My Firewall HOWTOs
httptunnel
httptunnel creates a bidirectional virtual data connection tunnelled in HTTP requests. The HTTP requests can be sent via an HTTP proxy if so desired.
Dynamic iptables firewalls: Flexible (and fun) network security
In this documentation, you will learn how to make rapid, complex changes to your firewall rules dynamic firewall scripts. You can use these scripts to increase your network security and responsiveness, and to inspire your own creative designs.
