Take A Tour of pfSense

pfSense® software is a free, open source customized distribution of FreeBSD specifically tailored for use as a firewall and router that is entirely managed via web interface. In addition to being a powerful, flexible firewalling and routing platform, it includes a long list of related features and a package system allowing further expandability without adding bloat and potential security vulnerabilities to the base distribution.

Our History

The pfSense project was started in September 2004 by Chris Buechler and Scott Ullrich, with a growing development team. Chris is a long time contributor to the m0n0wall project. m0n0wall is a great embedded firewall, but one of the great things about its design is also a limitation to expandability. m0n0wall runs entirely from RAM, the entire OS and all applications are loaded into RAM at boot time. This is a great design for embedded systems, for performance and reliability reasons. However m0n0wall is not capable of being installed into a normal file system on a hard drive. Hence many desirable functions can't be reasonably implemented.

See this blog post for background on the name behind pfSense software.


pfSense is Copyright 2004-2017 Rubicon Communications, LLC (Netgate)
Current logo is Copyright 2005-2017 Electric Sheep Fencing, LLC

pfSense is a federally registered trademark of Electric Sheep Fencing LLC. Any unauthorized use of this trademark is prohibited by state and federal law and international treaties. Refer to our Trademark Usage Guidelines for how to properly use the marks.

All rights reserved.


pfSense is open source and distributed under the Apache 2.0 license.

Contributor License Agreements

We look forward to your patches. Before we can accept them, you must sign and submit (via electronic submission, postal mail, email) a Contributor License Agreement. The preferred method is to electronically submit an Individual Contributor License Agreement (ICLA) or Corporate Contributor License Agreement (CCLA) at the pfSense portal or if you need, you can send in a filled out PDF of the ICLA or a CCLA.

The purpose of this agreement is to clearly define the terms under which intellectual property has been contributed to the pfSense project and thereby allow us to defend the project should there be a legal dispute regarding the software at some future time. From the individual contributor agreement: "This license is for Your protection as a Contributor as well as the protection of ESF; it does not change your rights to use your own Contributions for any other purpose."

Contact Us

Sales & Customer Service

To contact us with sales questions or comments, you can reach us by email at sales@pfsense.org or by phone at 1 (512) 900-2546.

Support & Services

If you have any questions, please email support@netgate.com or look over our support frequently asked questions.

pfSense Project

To contact us for submitting patches, inquiring about contributing to the project, notifying us of problems with any of our web sites, or any other non-support issue email coreteam@pfsense.org.

To contact us for security issues, use security@pfsense.org.

Mail Address

7212 McNeil Dr #204
Austin, TX 78729

Direct Access to the pfSense Team

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