Comparison of BSD operating systems: Difference between revisions

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OpenBSD does not purely replace software because of its license. Example is libressl, it forked from openssl because the code in openssl is disgusting.
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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.
 
In the past, BSD washas also been used as a basis for several proprietary versions of UNIX, such as [[Apple Inc.]]'s [[MacOS]], [[Sun Microsystems|Sun]]'s [[SunOS]], [[Sequent Computer Systems|Sequent]]'s [[Dynix]], [[NeXT]]'s [[NeXTSTEP]], [[Digital Equipment Corporation|DEC]]'s [[Ultrix]] and OSF/1 AXP (which became the now discontinued [[Tru64 UNIX]]).
 
==Aims and philosophies==
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In June 2008, the NetBSD Foundation moved to a [[BSD_licenses#2-clause_license_("Simplified_BSD_License"_or_"FreeBSD_License") | 2-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>
 
Projects spawned by NetBSD include [[NPF (firewall)|NPF]], [[Rump kernel | Rump kernels ]], [[busdma]], [[pkgsrc]] and NVMM. <ref>{{cite web |url=https://blog.netbsd.org/tnf/entry/from_zero_to_nvmm |title=From Zero to NVMM| date=2019-04-09 |access-date=2025-01-06}}</ref>
 
'''Derivatives:'''
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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 MicroBSD.<ref>{{cite web | url = http://www.microbsd.net/images/logo.png | title = MicroBSD logo – The small secure unix like OS | format = PNG | access-date = 2006-04-22 | archive-url = https://web.archive.org/web/20060425092758/http://www.microbsd.net/images/logo.png | archive-date = 2006-04-25 | url-status = dead }}</ref> <ref>https://damnsmallbsd.org/MicroBSD/ | title = New MicroBSD Website</ref> TrueOS's slogan is "Personal computing, served up BSD style!", GhostBSD's "A simple, secure BSD served on a Desktop." DesktopBSD's "A Step Towards BSD on the Desktop." MicroBSD's slogan is "The small secure unix like OS."
 
[[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>