FreeBSD is a free and open-source Unix-like operating system descended from the Berkeley Software Distribution (BSD). The first version of FreeBSD was released in 1993 developed from 386BSD[3] and the current version runs on x86, ARM, PowerPC and RISC-V processors. The project is supported and promoted by the FreeBSD Foundation.
FreeBSD maintains a complete system, delivering a kernel, device drivers, userland utilities, and documentation, as opposed to Linux only delivering a kernel and drivers, and relying on third-parties like GNU for system software.[4] The FreeBSD source code is generally released under a permissive BSD license, as opposed to the copyleft GPL used by Linux.
The FreeBSD project includes a security team overseeing all software shipped in the base distribution. A wide range of additional third-party applications may be installed from binary packages using the pkg package management system or from source via FreeBSD Ports,[5] or by manually compiling source code.
As of 2005, FreeBSD was the most popular open-source BSD operating system, accounting for more than three-quarters of all installed and permissively licensed BSD systems.[6] Much of FreeBSD's codebase has become an integral part of other operating systems such as Darwin (the basis for macOS, iOS, iPadOS, watchOS, and tvOS), TrueNAS (an open-source NAS/SAN operating system), and the system software for the PlayStation 3[7][8] and PlayStation 4[9] game consoles. The other BSD systems (OpenBSD, NetBSD, and DragonFly BSD) also contain a large amount of FreeBSD code, and vice-versa[citation needed].
^"FreeBSD 14.0-RELEASE Announcement". FreeBSD.org. 20 November 2023. Retrieved 22 November 2023.
^"FreeBSD 13.3-RELEASE Announcement". FreeBSD.org. 5 March 2024. Retrieved 5 March 2024.
^"FreeBSD History". people.freebsd.org. Retrieved 24 November 2023.
^Cite error: The named reference informit-bsd-tree was invoked but never defined (see the help page).
^"Chapter 4. Installing Applications: Packages and Ports". FreeBSD Handbook. The FreeBSD Project. Retrieved 16 June 2021.
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^Rosenberg, Alex (17 December 2013). "FreeBSD Handbook and PS3". freebsd-doc (Mailing list). Retrieved 22 January 2016.
^"Open Source Software used in PlayStation®4". Sony Interactive Entertainment. Retrieved 4 January 2019.
FreeBSD is a free and open-source Unix-like operating system descended from the Berkeley Software Distribution (BSD). The first version of FreeBSD was...
unknown (link) "The FreeBSD Copyright". freebsd.org. Retrieved 25 March 2020. "NetBSD Licensing and Redistribution". The NetBSD Foundation. Retrieved...
BSD!", freebsd-current mailing list, retrieved 26 July 2007 Evans, Jason (16 April 2006). "A Scalable Concurrent malloc(3) Implementation for FreeBSD"...
Berkeley. The term "BSD" commonly refers to its open-source descendants, including FreeBSD, OpenBSD, NetBSD, and DragonFly BSD. BSD was initially called...
Distribution (BSD) series of Unix variant options. The three most notable descendants in current use are FreeBSD, OpenBSD, and NetBSD, which are all...
manual intervention. pkgsrc supports not only NetBSD, but also several other BSD variants like FreeBSD and Darwin/macOS, and other Unix-like operating...
mechanism is an implementation of FreeBSD's OS-level virtualisation that allows system administrators to partition a FreeBSD-derived computer system into several...
GhostBSD is a Unix-like operating system based on FreeBSD, with MATE (previously GNOME) as its default desktop environment and an Xfce-desktop community...
to freebsd-announce: The FreeBSD Foundation -- an introduction, June 27, 2001. Visited June 12, 2011. "Board of Directors". 24 November 2023. Free and...
DragonFly BSD is a free and open-source Unix-like operating system forked from FreeBSD 4.8. Matthew Dillon, an Amiga developer in the late 1980s and early...
2005, the BSD Certification Group surveyed 4330 individual BSD users, showing that 32.8% used OpenBSD, behind FreeBSD with 77%, ahead of NetBSD with 16...
with some kernel packages from FreeBSD. The k in kFreeBSD is an abbreviation for kernel, which refers to the FreeBSD kernel. Before discontinuing the...
The daemon was not unique to FreeBSD since it was historically used by other BSD variants and members of the FreeBSD core team considered it inappropriate...
their websites. FreeBSD is a free Unix-like operating system descended from AT&T UNIX via the Berkeley Software Distribution (BSD). FreeBSD currently has...
continuation of FreeNAS 7 series project. Being based on the FreeBSD kernel, Debian GNU/kFreeBSD has ZFS support from the kernel. However, additional userland...
kernel of FreeBSD. The k in kFreeBSD is an abbreviation for kernel of, and reflects the fact that only the kernel of the complete FreeBSD operating system...
Montague, Bruce (2013-11-13). "Why you should use a BSD style license for your Open Source Project". FreeBSD. Retrieved 2015-11-28. 9. GPL Advantages and Disadvantages...
(formerly PC-BSD or PCBSD) is a discontinued Unix-like, server-oriented operating system built upon the most recent releases of FreeBSD-CURRENT. Up to...
iXsystems. They include both free and open-source and commercial offerings, based on the OpenZFS file system and either FreeBSD or Linux. It is licensed under...
The license is very similar to the 2-clause Simplified BSD License used by the support of FreeBSD, however, it makes the applications of "source code" and...
m0n0wall-based FreeSBIE (discontinued) – FreeBSD-based GhostBSD – FreeBSD based with gnome GUI, installable to HDD Ging – Debian GNU/kFreeBSD-based m0n0wall...
numbers in a man page mean? FreeBSD Manual Pages, freebsd.org – has also man pages for Darwin, Debian, HP-UX, IRIS, NetBSD, OpenBSD, NextSTEP, SunOS and more...
/etc/sysctl.d/99-sysctl.conf as of systemd 207). Default setting for FreeBSD, OpenBSD, NetBSD and Mac OS X is to have window scaling (and other features related...
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