View source for OpenBSD

OpenBSD is an open source Unix-like Operating System.  It is free to download, copy and modify.  It is not similar to [[Linux]] in a sense because it was based on the 4.4BSD Operating System developed at the University of California at Berkeley ([[UCB]]).  OpenBSD's mascot is [[puffy]] the Blowfish. [http://www.openbsd.org OpenBSD Project Home Page]
OpenBSD is written with [[C]] programming language.

== OpenBSD 5.1 ==

The [http://www.openbsd.org current] OpenBSD version is 5.2:

OpenBSD's preorders for 5.2 are on:

[http://www.openbsd.org/52.html OpenBSD 5.2 Release Page]

This season Puffy is doing a lot with threads...

== Ported programs that orginated at OpenBSD ==

* [[ssh|OpenSSH]] is a side-project of OpenBSD.  It was forked from ssh with an old version that had little license restrictions and is compatible now with ssh 2.0.
* [[pf]] was created at OpenBSD first (before being ported to other BSD's).  Pf stands for Packet Filter and is a layer 3+ firewall.  It was created to replace ipf.


== Release Song ==

Since release 3.0 OpenBSD has released a promotional song with its CD, it makes the project more hip this way.  The songs and their lyrics can be found [http://www.openbsd.org/lyrics.html here]


== Hackathons ==

Hackathons are get-togethers of the programmers of OpenBSD.  Since OpenBSD makes money by selling CD's and other merchandise, there is enough money to pay some developers travel, room and board.  At a hackathon which spans usually over a week or so the programmers do a lot of code and can help others that need some information at hand.  [http://marc.info/?l=openbsd-cvs&r=1&w=2 Marc.info] can be used to track changes to the openbsd source tree which gets updated very often during a hackathon (otherwise one can subscribe to the list through majordomo).


== Export Restrictions ==

[[FreeBSD]] recently implemented ACPI code in its implemenatation that has [http://marc.info/?l=openbsd-misc&m=128634319422034&w=2 export restrictions].  OpenBSD has no such export restrictions since the project is based in Canada which is known for its liberal export rules.