shorewall

Shoreline Firewall, netfilter configurator

Shorewall allows firewall/gateway requirements to be described using entries in a set of configuration files. It reads those configuration files and, with the help of the iptables utility, configures netfilter to match these requirements. Shorewall supports a wide range of router/firewall/gateway applications, traffic shaping and almost every type of VPN.

shorewall-core

Shorewall core components

This package provides the core Shorewall components, which are required for the rest of the Shorewall packages to work. There is not an especially good reason to have this package installed all by itself.