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OpenBSD: History, Works, Applications & Music

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.

Language: English [EN]
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OpenBSD topic overview

The analysis highlights History, Works, Applications and Music as prominent areas in the source structure around OpenBSD.

Related topics
211
Source areas
14
Connected nodes
225
Extracted relationships
265
Concept neighborhoods
43
Bridge connections
225

What this topic covers Research coverage

Source areas are shown by the number of related topics found in each part of the analysis. Use smaller areas too: they can reveal specialized angles and content gaps.

Subprojects · 43 topics
Security · 40 topics
Overview · 36 topics
Uses · 34 topics
Licensing · 14 topics
Funding · 12 topics
Third-party components · 10 topics
Songs and artwork · 7 topics
Development · 5 topics
Open source and open documentation · 5 topics
Usage statistics · 2 topics
Closed source and proprietary code · 1 topics
Distribution · 1 topics
History · 1 topics

Smaller areas are not necessarily less important. They contain fewer connections in this analysis and can be useful for finding specialized angles or coverage gaps.

Key facts & relationships

High-confidence facts extracted from structured source data. Use them as anchors for further research.

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

Explore all related topics Closing gaps

Browse the complete topic structure, not only the most central items. Less prominent entities and concepts can reveal missing angles, specialized context and useful research gaps. Each item opens a new analysis centered on that subject.

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

Deeper signals for content research, entity SEO and topical coverage. The plain-language headings explain what each technical view is useful for.

How OpenBSD connects Entity context

The extracted context around OpenBSD shows recurring relationship patterns in the source. For example, 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 Another extracted example is OpenBSD → Bob Beck, Canadian, Core Infrastructure Initiative, Facebook, Google, It, July, LibreSSL, Microsoft, OpenBGPD, OpenBSD Foundation, OpenCVS, OpenNTPD, OpenSMTPD, OpenSSH, Since, The OpenBSD Foundation. Use these groups to spot repeated connection types before inspecting the individual relationships.

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

Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.

Important terminology

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

OpenBSD relationships Subject–Predicate–Object triples

TTTA extracted 265 structured relationships around OpenBSD. Examples in this analysis include OpenBSD → Default user interface → Modified pdksh, X11 (FVWM) and OpenBSD → Developer → Theo de Raadt et al.. The table shows each extracted connection, where it came from and its confidence.

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

Related concept clusters Concept neighborhoods

The concept neighborhoods around OpenBSD bring nearby vocabulary together. In this analysis, examples include Operating, Project and Systems. Use the clusters to find adjacent concepts and terminology that may deserve separate research.

  • OpenBSD
    • Operating
    • Project
    • Systems
    • Code
    • Source
    • Security
    • Including
    • De
    • System
    • Raadt
    • Bsd
    • Developers
  • openbsd
    • Operating
    • Project
    • Systems
    • Code
    • Source
    • Security
    • Including
    • De
    • System
    • Raadt
    • Bsd
    • Developers
  • operating system
    • Systems
    • System
    • Many
    • Ports
    • Pf
    • Open
    • Openssh
    • Including
    • Packages
    • Used
    • Cvs
    • Also
  • theo de raadt
    • Raadt
    • Open
    • Netbsd
    • Source
    • Funding
    • Users
    • Openbsd
    • Secure
    • Security
    • Code
    • Used
    • Project
  • source code
    • Source
    • Developers
    • Openbsd
    • Ports
    • License
    • Releases
    • Raadt
    • Openbsd's
    • Openssh
    • Security
    • Use
    • System
  • openbsd foundation
    • Support
    • Operating
    • Project
    • Systems
    • Code
    • Source
    • Security
    • Including
    • De
    • System
    • Raadt
    • Bsd
  • dragonfly bsd
    • License
    • Software
    • Used
    • Support
    • Open
    • Operating
    • Source
    • Many
    • Openbsd
    • Systems
    • Raadt
    • Security
  • code auditing
    • Source
    • Developers
    • Openbsd
    • License
    • Openbsd's
    • Openssh
    • Security
    • System
    • Use
    • Systems
    • Operating
    • Secure

Connections between topic areas Semantic bridges

For OpenBSD, one of the stronger structural bridges in this analysis connects OpenBSD with Subprojects. Bridges highlight paths between different parts of the map and can reveal research angles that are easy to miss in a flat list.

Min side: 3
OpenBSD — Subprojects · splits 182 ⟂ 44
OpenBSD — Security · splits 185 ⟂ 41
OpenBSD — Overview · splits 189 ⟂ 37
OpenBSD — Uses · splits 191 ⟂ 35
OpenBSD — Licensing · splits 211 ⟂ 15
OpenBSD — Funding · splits 213 ⟂ 13
OpenBSD — Third-party components · splits 215 ⟂ 11
OpenBSD — Songs and artwork · splits 218 ⟂ 8
OpenBSD — Development · splits 220 ⟂ 6
OpenBSD — Open source and open documentation · splits 220 ⟂ 6
OpenBSD — Usage statistics · splits 223 ⟂ 3

Map overview Semantic statistics

OpenBSD

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

Source & methodology

TTTA analyzes the structure around OpenBSD to surface related topics, entities, relationships, concept neighborhoods and bridge connections. Use the map to explore areas such as History, Works, Applications & Music, including less central topics that may reveal useful research gaps. Automatically extracted connections are research leads rather than rewritten encyclopedia content.

Source: Wikipedia — OpenBSD · EN edition · Analysis: TopicsToTalkAbout

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