Diff for OpenBSD

Revision by wikicurator on 2026-07-13 15:20

[[File:puffy.gif|Puffy, the pufferfish mascot of OpenBSD]]

'''OpenBSD''' is a free, security-focused Unix-like operating system descended from [[Berkeley Software Distribution|BSD]], forked from [[NetBSD]] in 1995 by [[Theo de Raadt]]. It is best known for its aggressive focus on code auditing, secure defaults, and producing widely-reused software like [[OpenSSH]].

== Philosophy ==
OpenBSD's project motto is 'Only two remote holes in the default install, in a heck of a long time!' The project performs continuous manual code auditing rather than relying purely on automated tools, and ships with secure-by-default configuration rather than requiring users to lock the system down themselves.

== Notable spinoff software ==
* '''[[OpenSSH]]''' -- now the de facto standard SSH implementation on nearly every [[Linux]], [[macOS]], and even [[Microsoft Windows|Windows]] system
* '''[[OpenBGPD]]''' and '''[[OpenNTPD]]''' -- lightweight, security-audited networking daemons
* '''[[LibreSSL]]''' -- a fork of OpenSSL created after the Heartbleed vulnerability

[[Category:Operating systems]]
[[Category:BSD]]
[[Category:Free and open-source software]]