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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.

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Key facts & relationships

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Default user interface
Modified pdksh, X11 (FVWM)
Developer
Theo de Raadt et al.
Initial release
July 1996; 30 years ago (1996-07)
Kernel type
Monolithic
Latest release
7.9 (19 May 2026; 3 months ago (2026-05-19)) [±]
License
BSD, ISC, other permissive licenses

Topics to explore

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Overview

History

Usage statistics

Uses

Security

Subprojects

Third-party components

Development

Open source and open documentation

Closed source and proprietary code

Licensing

Funding

Distribution

Songs and artwork

Advanced semantic analysis

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Map overview Semantic statistics

OpenBSD

Nodes226
Edges225
Triples265
Avg. degree1.99
Density0.00885
Components1

How this topic connects Entity context

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OpenBSD

Top relations

related to Subprojects · 31
OpenBSD → BGP, BGP-4OpenIKED, CARPrpki-client, Cisco's, Git's, HSRP/VRRP, IKEv2OpenNTPD, IPv4/IPv6, Maildir, Many, MIDI, NAT, NTP, OpenSSL, Org, OSPFOpenSMTPD, PAM, PAT, PF, PFXenocara
related to OpenBSD Foundation · 17
OpenBSD → Bob Beck, Canadian, Core Infrastructure Initiative, Facebook, Google, It, July, LibreSSL, Microsoft, OpenBGPD, OpenBSD Foundation, OpenCVS, OpenNTPD, OpenSMTPD, OpenSSH, Since, The OpenBSD Foundation
related to Licensing · 16
OpenBSD → Also, Apache License, At, Berkeley Unix, Bernstein, BSD, Code, Daniel, Darren Reed's, GNU General Public License, In June, IPFilter's, ISC, The, To, Unix
related to Alleged backdoor · 15
OpenBSD → De Raadt, De Raadt's, December, FBI, Federal Bureau, Gregory Perry, If, In, Investigation, IPsec, NetSec, On, OpenBSD Cryptographic Framework, Raadt, They
related to Criticisms · 15
OpenBSD → Are, BSD, BSDs, Bugs, CCC, CVE, DEF CON, Ilja, In December, IOActive, Julien Voisin, OpenBSD's, Sprundel, Two, While
related to history · 13
OpenBSD → Bob Beck, Canadian, In December, In October, July, NetBSD, October, On, OpenBSD Foundation, Raadt, Since, The, Theo
related to Closed source and proprietary code · 12
OpenBSD → And, But, How, In, Jeremy Andrews, OpenBSD's GitHub, Quite, Raadt, Theo, TI, We, What
related to Other operating systems · 12
OpenBSD → Core Force, FreeBSD, Interix, Microsoft, Microsoft's Windows Services, OpenBSD's, Softway Systems Inc, Some, The, UNIX, Unix-like, Windows
related to Personal computers · 12
OpenBSD → As, Chromium, Firefox, FVWM, GNOME, KDE Plasma, Lumina, September, The, Window System, Xenocara, Xfce
related to Distribution · 11
OpenBSD → Beginning, CD-ROM, CVS, FTP, HTTP, In OpenBSD, Internet, On OpenBSD, Packages, Prepackaged CD-ROM, These

Important terminology Word statistics

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Important terminology

project system de code source operating raadt security systems default also many bsd release openssh software packages developers use including

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
OpenBSDDefault user interfaceModified pdksh, X11 (FVWM)1.00infobox
OpenBSDDeveloperTheo de Raadt et al.1.00infobox
OpenBSDInitial releaseJuly 1996; 30 years ago (1996-07)1.00infobox
OpenBSDKernel typeMonolithic1.00infobox
OpenBSDLatest release7.9 (19 May 2026; 3 months ago (2026-05-19)) [±]1.00infobox
OpenBSDLicenseBSD, ISC, other permissive licenses1.00infobox
OpenBSDOfficial websitewww.openbsd.org1.00infobox
OpenBSDOS familyUnix-like (BSD)1.00infobox
OpenBSDPackage managerOpenBSD package tools1.00infobox
OpenBSDRepositorycvsweb.openbsd.org1.00infobox
OpenBSDSource modelOpen source1.00infobox
OpenBSDSupported platformsAlpha, x86-64, ARMv7, ARMv8 (64-bit), PA-RISC, IA-32, LANDISK, Loongson, Omron LUNA-88K, MIPS64, macppc, PowerPC, 64-bit RISC-V, SPARC641.00infobox
OpenBSDUserlandBSD1.00infobox
OpenBSDWorking stateCurrent1.00infobox
OpenBSDWritten inC, assembly, Perl, Unix shell1.00infobox
OpenBSDis asecurity-focused0.90text
OpenBSDis adrive for systems to be simple0.90text

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