Main repository for pfSense
The pfSense project is a free network firewall distribution, based on the FreeBSD operating system with a custom kernel and including third party free software packages for additional functionality. pfSense software, with the help of the package system, is able to provide the same functionality or more of common commercial firewalls, without any of the artificial limitations. It has successfully replaced every big name commercial firewall you can imagine in numerous installations around the world, including Check Point, Cisco PIX, Cisco ASA, Juniper, Sonicwall, Netgear, Watchguard, Astaro, and more.
pfSense software includes a web interface for the configuration of all included components. There is no need for any UNIX knowledge, no need to use the command line for anything, and no need to ever manually edit any rule sets. Users familiar with commercial firewalls catch on to the web interface quickly, though there can be a learning curve for users not familiar with commercial-grade firewalls.
pfSense started in 2004 as a fork of the m0n0wall Project (which ended 2015/02/15), though has diverged significantly since.
pfSense is Copyright 2004-2026 Rubicon Communications, LLC (Netgate) and published under an open source license. Read more at https://pfsense.org/ and support the team by buying bundled hardware appliances or commercial support.
For information on how to contribute to the pfSense project, see CONTRIBUTING.
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