Shorewall is an open source software firewall for Linux servers and systems. It is designed to provide a secure, robust firewall solution that is both flexible and easy to use. With Shorewall, IT administrators can quickly and easily configure a firewall to protect their network from malicious traffic. It provides a wide range of features, such as packet filtering, NAT, port forwarding, logging, and traffic shaping. It also offers support for IPv6 and includes packet-level accounting. Shorewall is used by many businesses and organizations to secure their networks from external threats.
Discontinued The last update was released on April 18, 2013. "After working on Firewall Builder for many years, Vadim and I announce that we have discontinued all development activity on this project. Firewall Builder has been a great project "We worked on and really appreciate all the support and positive feedback that the user community has provided. Without you, we wouldn't have been able to keep things going."