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Topic orientation
OpenBSD at a glance
The strongest research directions include Uses and Security. Use the connected concepts below as starting points, not as a keyword checklist.
Research this topic
Explore the main themes, entities and connections around OpenBSD. Start with the topic map, then use the sections below for research and deeper semantic analysis.
Explore this topic
Start with a few of the strongest sections from the source topic. These are research directions, not a list of keywords you must use.
Uses
34 related topics
Security
40 related topics
Subprojects
43 related topics
Licensing
14 related topics
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
Topics to explore
A structured outline of related entities, concepts and subtopics. Open any item to build a new map centered on it.Browse the full topic structure. Each item opens a new analysis centered on that subject.
Overview
- Security-focused Security-focused operating system
- Free software
- Unix-like
- Operating system
- Berkeley Software Distribution
- Theo de Raadt
- Forking Fork (software development)
- NetBSD
- Portability Software portability
- Standardization Software standard
- Correctness Software bug
- Security Computer security
- Cryptography
- Packages Package manager
- Firewall Firewall (computing)
- Apple Apple Inc.
- MacOS
- PF PF (firewall)
- Android Android (operating system)
- Bionic Bionic (software)
- C standard library
- LLVM
- Regular expression
- Windows 10
- OpenSSH
- Secure Shell
- LibreSSL
- Source code
- Internet
- Hardware platforms Computer architecture
History
Usage statistics
Uses
- TCP/IP
- Networking Computer network
- Router Router (computing)
- Wireless access point
- Security enhancements OpenBSD security features
- Intrusion-detection systems Intrusion-detection system
- VPN Virtual private network
- Gateways Gateway (computer networking)
- Proprietary Proprietary software
- Armorlogic Armorlogic?action=edit&redlink=1
- Microsoft
- Windows Services for UNIX
- Windows Microsoft Windows
- Interix
- Xenocara
- X Window System
- Personal computers Personal computer
- Software repository
- Lumina Lumina (desktop environment)
- GNOME
- KDE Plasma
- Xfce
- Firefox
- Chromium Chromium (web browser)
- Cwm Cwm (window manager)
- Twm
- Server Server (computing)
- Mail server
- Web server
- FTP server
Security
- McAfee
- Network security
- Exploit Exploit (computer security)
- POSIX
- Strlcat
- Strcat
- Strlcpy
- Strcpy
- Static bounds checker Static code analysis
- ProPolice Stack-smashing protection
- W^X
- Page Paging
- Randomization
- System call
- Filesystem
- Privilege escalation
- Privilege separation
- Privilege revocation Privilege revocation (computing)
- Chrooting Chroot
- Principle of least privilege
- File system
- Tcpdump
- File File (command)
- Tmux
- Smtpd OpenSMTPD
- Syslogd
- Compiler
- Internet Security Systems
- Challenge–response authentication
- Vulnerability Vulnerability (computer science)
Subprojects
- Bioctl
- RAID
- Ifconfig
- CARP Common Address Redundancy Protocol
- Cisco Cisco Systems
- HSRP Hot Standby Router Protocol
- VRRP Virtual Router Redundancy Protocol
- Doas
- Sudo
- Httpd
- Game of Trees Game of Trees?action=edit&redlink=1
- Git
- Hw.sensors
- SSL Secure Sockets Layer
- TLS Transport Layer Security
- OpenSSL
- Mandoc
- Man pages
- OpenBGPD
- BGP-4 Border Gateway Protocol
- OpenIKED
- IKEv2
- OpenNTPD
- NTP Network Time Protocol
- OpenOSPFD
- OSPF Open Shortest Path First
- SMTP Simple Mail Transfer Protocol
- IPv4
- IPv6
- PAM Pluggable Authentication Modules
Third-party components
- Third-party components Third-party software component
- Clang
- GCC GNU Compiler Collection
- Perl
- NSD
- Unbound Unbound (DNS server)
- Ncurses
- GNU binutils
- GDB GNU Debugger
- AWK
Development
- Syspatch Syspatch?action=edit&redlink=1
- CVS Concurrent Versions System
- Sysupgrade Sysupgrade?action=edit&redlink=1
- Ports tree Ports collection
- Hackathons Hackathon
Open source and open documentation
- Revision control system
- Closed source
- Non-disclosure agreements Non-disclosure agreement
- Port numbers Port (computer networking)
- Inode
Closed source and proprietary code
Licensing
- License Software licensing
- ISC license
- BSD license Simplified BSD License
- Copyrights Copyright
- Apache License
- GNU General Public License
- Multicast
- Routing
- Relicensed Software relicensing
- Daniel J. Bernstein
- Packet filter
- IPFilter
- Pkg-config
- Permissively licensed Permissive software license
Funding
Distribution
- Makefiles Makefile
Songs and artwork
- BSD daemon
- Pufferfish
- Plaid Tongued Devils
- Rock song Rock music
- Conan the Barbarian
- The Wizard of OS The Wizard of OS (song)
- Indiana Jones
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 this topic connects Entity context
Quick relationship hints grouped by predicate. Useful for spotting recurring semantic connections around the current entity.See the strongest relationship patterns around the current topic before diving into the raw triples.
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
Frequent words and multi-word phrases across the lead, headings, infobox and body. Useful for terminology coverage.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
Entity relationships Subject–Predicate–Object triples
Extracted RDF-like relationships with confidence and source. The table includes structured facts and lower-confidence contextual relations.| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| OpenBSD | Default user interface | Modified pdksh, X11 (FVWM) | 1.00 | infobox |
| OpenBSD | Developer | Theo de Raadt et al. | 1.00 | infobox |
| OpenBSD | Initial release | July 1996; 30 years ago (1996-07) | 1.00 | infobox |
| OpenBSD | Kernel type | Monolithic | 1.00 | infobox |
| OpenBSD | Latest release | 7.9 (19 May 2026; 3 months ago (2026-05-19)) [±] | 1.00 | infobox |
| OpenBSD | License | BSD, ISC, other permissive licenses | 1.00 | infobox |
| OpenBSD | Official website | www.openbsd.org | 1.00 | infobox |
| OpenBSD | OS family | Unix-like (BSD) | 1.00 | infobox |
| OpenBSD | Package manager | OpenBSD package tools | 1.00 | infobox |
| OpenBSD | Repository | cvsweb.openbsd.org | 1.00 | infobox |
| OpenBSD | Source model | Open source | 1.00 | infobox |
| OpenBSD | Supported platforms | Alpha, x86-64, ARMv7, ARMv8 (64-bit), PA-RISC, IA-32, LANDISK, Loongson, Omron LUNA-88K, MIPS64, macppc, PowerPC, 64-bit RISC-V, SPARC64 | 1.00 | infobox |
| OpenBSD | Userland | BSD | 1.00 | infobox |
| OpenBSD | Working state | Current | 1.00 | infobox |
| OpenBSD | Written in | C, assembly, Perl, Unix shell | 1.00 | infobox |
| OpenBSD | is a | security-focused | 0.90 | text |
| OpenBSD | is a | drive for systems to be simple | 0.90 | text |
No triples extracted yet.
Related concept clusters Concept neighborhoods
Clusters of nearby vocabulary surrounding the topic. Scan them for adjacent concepts and language you may have missed.These clusters group vocabulary that occurs around closely connected concepts in the source material.
Connections between topic areas Semantic bridges
Bridge nodes connect otherwise separate parts of the map. Expand a row to inspect the topic groups on each side.Bridges can reveal useful research angles that are easy to miss in a flat list of related terms.
Map overview Semantic statistics
Number of nodes, edges, triples, density and central hubs. Use it to gauge the size and connectivity of the map.OpenBSD
Nodes226
Edges225
Triples265
Avg. degree1.99
Density0.00885
Components1
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