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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. OpenBSD supports binary emulation of most programs from SVR4 (Solaris), FreeBSD, Linux, BSD/OS, SunOS and HP-UX.
OpenBSD is freely available from our FTP sites,
and also available in an inexpensive 3-CD set.
The current release is OpenBSD 3.2 which started
shipping Nov 1, 2002.
OpenBSD contains OpenSSH, which supports SSH1 and SSH2!
OpenBSD is developed by volunteers. The project funds development and releases by selling CDs and T-shirts, as well as receiving donations. Organizations and individuals donate and thus ensure that OpenBSD will continue to exist, and will remain free for everyone to use and reuse as they see fit.
For the current two year period, a number of OpenBSD security R&D initiatives are supported by DARPA and the Air Force Research Laboratory, Air Force Material Command, USAF, under agreement number F30602-01-2-0537 and also in cooperation with the POSSE project at University of Pennsylvania.