Shorewall 4.2.5

Shorewall - High-level tool for configuring Netfilter.

Shoreline Firewall, more commonly known as "Shorewall", is a high-level tool for configuring Netfilter. Shorewall can be used on a dedicated firewall system, a multi-function gateway/router/server or on a standalone GNU/Linux system. Shorewall does not use Netfilter's ipchains compatibility mode; as a consequence, Shorewall can take advantage of Netfilter's connection state tracking capabilities to create a stateful firewall.If you are looking for a Linux firewall solution that can handle complex and fast changing network environments then Shorewall is a logical choice.