Content deleted Content added
No edit summary |
Missing a big one |
||
| (10 intermediate revisions by 5 users not shown) | |||
Line 4:
Most of the current BSD operating systems are [[Open-source software|open source]] and available for download, free of charge, under the [[BSD License]]. They also generally use a [[monolithic kernel]] architecture, apart from DragonFly BSD which feature [[hybrid kernel]]s. The various open source BSD projects generally develop the kernel and [[user space|userland]] programs and libraries together, the source code being managed using a single central source repository.
==Aims and philosophies==
Line 35:
===NetBSD===
[[NetBSD]] aims to provide a freely redistributable operating system that professionals, hobbyists, and researchers can use in any manner they wish. The main focus is [[software portability|portability]], through the use of clear distinctions between machine-dependent and [[cross-platform software | machine-independent]] code. It runs on a wide variety of [[32-bit]] and [[64-bit]] [[Central processing unit | CPU]] [[Instruction set architecture
NetBSD places emphasis on [[Software verification and validation#Software validation|correct design]], well-written code, stability, and efficiency, where practical, close compliance with [[open API]] and [[open protocol | protocol standards]] is also aimed for.
In June 2008, the NetBSD Foundation moved to a
▲In June 2008, the NetBSD Foundation moved to a two-clause BSD license, citing changes at UCB and industry applicability.<ref>{{cite web | date = 2006-01-08 | url = http://www.netbsd.org/Misc/about.html | title = About the NetBSD Project – What is the NetBSD project? | publisher = The NetBSD Foundation, Inc. | access-date = 2006-04-22}}</ref>
'''Derivatives:'''
*'''Force10 Networks FTOS'''– Powerful and robust operating system that runs on Force10 TeraScale E-Series [[Layer 2 switching| switches
*'''SEIL/SMFv2'''– The system management [[software framework | framework]]<ref>{{cite web|url=https://dev.smf.jp/|title=SMF developer site}}</ref> used by [[Internet Initiative Japan, Inc. | IIJ]]'s SEIL/X [[Customer-premises equipment|CPE]] routers, built on NetBSD.<ref>{{cite web |url=https://www.netbsd.org/gallery/presentations/msaitoh/2014_AsiaBSDCon/ABC2014-P6B-paper.pdf |title=Developing CPE Routers based on NetBSD: Fifteen Years of SEIL |work=AsiaBSDCon 2014 |author=Masanobu SAITOH, Hiroki SUENAGA |date=March 2014 |access-date=14 February 2025 |archive-date=10 October 2024 |archive-url=https://web.archive.org/web/20241010134105/https://www.netbsd.org/gallery/presentations/msaitoh/2014_AsiaBSDCon/ABC2014-P6B-paper.pdf |url-status=live }}</ref>
*'''
*'''
*'''
*'''
*'''smolBSD''' – Tiny BSD system creation tool, primarily aimed at building modern, lightweight, fast micro [[Virtual Machine | VMs]].<ref>{{cite web |url=https://smolbsd.org/ |title=smolBSD: make your own BSD UNIX MicroVM |access-date=2025-01-06}}</ref>
===OpenBSD===
Line 68 ⟶ 65:
}}</ref>
OpenBSD emphasizes very high standards in all areas. Security policies include disabling all non-essential services and having sane initial settings; and integrated [[cryptography]] (originally made easier due to relaxed Canadian export laws relative to the United States), [[Full disclosure (computer security)|full public disclosure]] of all security flaws discovered; thoroughly [[auditing]] code for bugs and security issues; various security features, including the [[W^X]] page protection technology and heavy use of randomization to mitigate attacks. Coding approaches include an emphasis on searching for similar issues throughout the [[code base]] if any code issue is identified. Concerning software freedom, OpenBSD prefers the [[BSD license|BSD]] or [[ISC license]], with the [[GNU General Public License|GPL]] acceptable only for existing software which is impractical to replace, such as the [[GNU Compiler Collection]]. NDAs are never considered acceptable. In common with its parent, NetBSD, OpenBSD strives to run on a wide variety of hardware.<ref>{{cite web | date = 2005-10-12 | url = http://www.openbsd.org/goals.html | title = OpenBSD Project Goals | publisher = OpenBSD | access-date = 2006-04-22}}</ref> Where licenses or code quality conflict with OpenBSD's philosophy, the OpenBSD team has re-implemented major pieces of software from scratch, which have often become the standard used within other versions of BSD. Examples include the [[PF (firewall)|pf]] [[packet filter]], new [[privilege separation]] techniques used to safeguard tools such as [[tcpdump]] and [[tmux]], much of the [[OpenSSH]] codebase, and replacing GPL licensed tools such as [[diff]], [[grep]] and [[pkg-config]] with [[ISC license|ISC]] or [[BSD license|BSD]] licensed equivalents.
OpenBSD prominently notes the success of its security approach on its website home page. {{As of|2024|July}}, only two vulnerabilities have ever been found in its default install (an [[OpenSSH]] vulnerability found in 2002, and a remote network vulnerability found in 2007) in a period of almost 22 years. According to OpenBSD expert Michael W. Lucas, OpenBSD "is widely regarded as the most secure operating system available anywhere, under any licensing terms."<ref>{{cite book
Line 127 ⟶ 124:
A number of BSD OSes use stylized version of their respective names for logos. This includes TrueOS, GhostBSD, DesktopBSD, ClosedBSD,<ref>{{cite web | url = http://www.closedbsd.org/images/logo.jpg | title = ClosedBSD logo
| format = JPEG | access-date = 2006-10-14 | archive-url = https://web.archive.org/web/20050306153339/http://www.closedbsd.org/images/logo.jpg
| archive-date=2005-03-06}} Original last retrieved on 2006-04-22.</ref> and
[[MirOS]]'s site collects a variety of BSD mascots and [[Tux (mascot)|Tux]], the [[Linux]] mascot, together, illustrating the project's aim of supporting both BSD and Linux kernels. MirOS's slogan is "a wonderful operating system for a world of peace."<ref>{{cite web | url = http://mirbsd.mirsolutions.de/ | title = MirOS/MirPorts: a wonderful operating system for a world of peace | publisher = MirOS Project | access-date = 2006-04-22 | archive-url = https://web.archive.org/web/20060412181907/http://mirbsd.mirsolutions.de/ | archive-date = 2006-04-12 | url-status = dead }}</ref>
Line 166 ⟶ 163:
| 1996-09-01
| [[NetBSD|NetBSD 1.0]]
| 7.
|
| {{Yes|Free}}
| [[ISC license|ISC]]
| |||