PeerGuardian helps protect your privacy by blocking many ranges of aggressive IPs while you use P2P.

Endian Firewall Community is a “turn-key” linux security distribution that turns every system into a full featured security appliance. The software has been designed with “usability in mind” and is very easy to install, use and manage, without losing its flexibility.
The features include a stateful packet inspection firewall, application-level proxies for various protocols (HTTP, FTP, […]

The Shoreline Firewall, more commonly known as “Shorewall”, is a high-level tool for configuring Netfilter. You describe your firewall/gateway requirements using entries in a set of configuration files. Shorewall reads those configuration files and with the help of the iptables utility, Shorewall configures Netfilter to match your requirements. Shorewall can be used on a dedicated […]

Devil-Linux is a special Linux distribution, which is used for Firewalls / Routers. The goal of Devil-Linux is to have a small, customizable and secure (what is secure in the internet?) Linux.

Firewalk is an active reconnaissance network security tool that attempts to determine what layer 4 protocols a given IP forwarding device will pass. Firewalk works by sending out TCP or UDP packets with a TTL one greater than the targeted gateway. If the gateway allows the traffic, it will forward the […]