Read about the Shorewall 5.0, 5.1 and 5.2 releases here! Get them from the download sites What is Shorewall? Shorewall is a gateway/firewall configuration tool for GNU/Linux. For a high level description of Shorewall, see the Introduction to Shorewall. To review Shorewall functionality, see the Features Page. Getting Started with Shorewall New to Shorewall? Download the current Stable version (see