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OpenBSD

OpenBSD is a security-focused, free software, Unix-like operating system based on the Berkeley Software Distribution (BSD). Theo de Raadt created OpenBSD in 1995 by forking NetBSD 1.0. The OpenBSD project emphasizes portability, standardization, correctness, proactive security, and integrated cryptography.

AI overview

OpenBSD is a free, security-focused operating system created in 1995 that prioritizes protecting user data and systems from threats through proactive security measures and built-in encryption tools. It matters because it demonstrates that an open-source operating system can prioritize safety and correctness alongside other technical goals, influencing security practices across the broader software industry.

AI-generated from the Wikipedia summary — may contain errors.

Key facts

OS.family: Unix-like (BSD)
OS.name: OpenBSD
OS.logo: OpenBSD Logo - Cartoon Puffy with textual logo below.svg
OS.logo caption: Free, Functional, and Secure
OS.logo size: 200px
OS.logo alt: Puffy, the pufferfish mascot of OpenBSD posing in the official logo.
OS.screenshot: Openbsd61 desktop.png
OS.caption: OpenBSD 6.1 default desktop with various utilities: top, xterm, xcalc, xclock, and glxgears
OS.developer: Theo de Raadt et al.
OS.working state: Current
OS.source model: Open source
OS.programmed in: C, assembly, Perl, Unix shell

Article

26 sections

Contents

History
Usage statistics
Uses
Network appliances
Other operating systems
Personal computers
Servers
Security
Security record
Alleged backdoor
Criticisms
Subprojects
Third-party components
Development
Open source and open documentation
Closed source and proprietary code
Licensing
Funding
OpenBSD Foundation
Distribution
Songs and artwork
Releases
See also
Notes
References
External links

The OpenBSD project maintains portable versions of many subsystems as packages for other operating systems. Because of the project's preferred BSD license, which allows binary redistributions without the source code, many components are reused in proprietary and corporate-sponsored software projects. The firewall code in Apple's macOS is based on OpenBSD's PF firewall code, Android's Bionic C standard library is based on OpenBSD code, LLVM uses OpenBSD's regular expression library, and Windows 10 uses OpenSSH (OpenBSD Secure Shell) with LibreSSL.