About OpenBSD
 Project Goals
 Hardware Platforms
 Security  Crypto
 Events  Papers  Innovations

Getting OpenBSD
 Buy CDs/Shirts/Posters

Getting Source
 CVS on Web

OpenBSD Resources
 Daily Changelog
 Manual Pages
 Reporting Problems
 Mailing Lists
 Commercial Support

Supporting OpenBSD
 OpenBSD Foundation

[OpenBSD 5.9]

Only two remote holes in the default install, in a heck of a long time!

The OpenBSD project produces a FREE, multi-platform 4.4BSD-based UNIX-like operating system. Our efforts emphasize portability, standardization, correctness, proactive security and integrated cryptography. As an example of the effect OpenBSD has, the popular OpenSSH software comes from OpenBSD.

OpenBSD is freely available from our download sites, or as a 3-CD set sold at openbsdstore.com.

The current release is OpenBSD 5.9, released March 29, 2016.

OpenBSD is developed entirely by volunteers. The project's development environment and developer events are funded through contributions collected by The OpenBSD Foundation. Contributions ensure that OpenBSD will remain a vibrant and free operating system.


Associated projects: OpenSSH, OpenBGPD, OpenNTPD, OpenSMTPD, OpenIKED, mandoc, LibreSSL
Mirrors, by country: AR CA CA DK MY RE SI
This site Copyright © 1996-2016 OpenBSD.