About OpenBSD
 Project Goals
 Hardware Platforms
 Daily Changelog
 Security  Crypto
 Events  Papers  Press
 Commercial Support

Getting OpenBSD
 Getting Releases
 Installing OpenBSD

Getting Source
 CVSync  Web

OpenBSD Resources
 Manuals  FAQ  Patches
 Mailing Lists
 Application Packages
 Books that Help

Supporting OpenBSD
 Direct Donations
 OpenBSD Foundation

[OpenBSD 5.4]

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 FTP/HTTP sites or as a 3 CD set.

The current release is OpenBSD 5.4 which was released Nov 1, 2013. Pre-orders for the upcoming OpenBSD 5.5 release are enabled at our order site.

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
Mirrors, by country: AR CA CA DK FR JP MY RE SI US
This site Copyright © 1996-2014 OpenBSD.