OpenBSD

OpenBSD is a Unix-like computer operating system descended from Berkeley Software Distribution (BSD),a Research Unix derivative developed at the University of California, Berkeley. It was forked from NetBSD by project leader Theo de Raadt in late 1995. As well as the operating system, the OpenBSD Project has produced portable versions of numerous subsystems, most notably PF, OpenSSH and OpenNTPD, which are verywidely available as packages in other operating systems.

The OpenBSD project follows a 6-month release cycle, with the next release being 5.9, to be released on 1 May 2016. This release has a Timelord theme.

Features

• High security in default install
• Xorg Just Works (TM)
• PF upstream
• Release music
• More unixy than Linux, if less so than Plan 9

Anti-Features

• Kernel not multithreaded
• Network stack not multithreaded ([www.openbsd.org/59.html Changed with 5.9] to support limited SMP)
• Doesn't effectively manage more than 4 GiB RAM

Notable users

This is a list of people who won't answer your questions about OpenBSD, and will instead tell you to RTFM.

• via
• jpo
• telnoratti
• echarlie