FreeBSD

FreeBSD is a free and open-source Unix-like operating system descended from the Berkeley Software Distribution (BSD). The first version was released in 1993 developed from 386BSD, one of the first fully functional and free Unix clones on affordable home-class hardware, and has since continuously been the most commonly used BSD-derived operating system.

TrueOS (formerly PC-BSD or PCBSD) is a discontinued Unix-like, server-oriented operating system built upon the most recent releases of FreeBSD-CURRENT.

pfSense is a firewall/router computer software distribution based on FreeBSD. The open source pfSense Community Edition (CE) and pfSense Plus is installed on a physical computer or a virtual machine to make a dedicated firewall/router for a network. It can be configured and upgraded through a web-based interface, and requires no knowledge of the underlying FreeBSD system to manage.

GhostBSD is a Unix-like operating system based on FreeBSD for x86-64, with MATE (previously GNOME) as its default desktop environment and an Xfce-desktop community based edition. It aims to be easy to install, ready-to-use and easy to use. The project goal is to combine security, privacy, stability, usability, openness, freedom and to be free of charge.

TrueNAS is a family of enterprise network-attached storage (NAS) products developed by iXsystems Inc., dba TrueNAS. The products consist of TrueNAS Enterprise and TrueNAS Community Edition. TrueNAS Enterprise is a family of storage appliances, with fully integrated software and hardware, that is sold as a commercial product with enterprise support. TrueNAS Community Edition can be installed for free on commodity x86-64 computers. The operating systems include components released under a proprietary license, GPL and BSD licenses.

Dynamically loadable module that extends a running operating system kernel

DesktopBSD was a Unix-derived, desktop-oriented operating system based on FreeBSD. Its goal was to combine the stability of FreeBSD with the ease of use of K Desktop Environment 3, the default graphical user interface.

m0n0wall was an embedded firewall distribution of FreeBSD, one of the BSD operating system descendants. It provided a small image which could be put on Compact Flash cards as well as on CD-ROMs and hard disks. It ran on a number of embedded platforms and generic PCs. The PC version could be run with just a Live CD and a floppy disk to store configuration data, or on a single Compact Flash card (with an IDE adapter). This eliminated the need for a hard drive, which reduces noise and heat levels and decreases the risk of system failure through elimination of moving parts found in older hard driv

thumb|upright|right|SCO OpenServer Release 5.0.7 box set

FreeSBIE is a live CD, an operating system that is able to load directly from a bootable CD with no installation process or hard disk. It is based on the FreeBSD operating system. Its name is a pun on frisbee. Currently, FreeSBIE uses Xfce and Fluxbox.

Chinese computer operating system

MidnightBSD is a formerly free Unix-like, desktop-oriented operating system originally forked from FreeBSD 6.1, and periodically updated with code and drivers from later FreeBSD releases. Its default desktop environment, Xfce, is a lightweight user friendly desktop experience.

computer networking protocol; allows multiple hosts on the same local area network to share IP addresses; provides failover redundancy, especially with firewalls and routers

OPNsense is an open source, FreeBSD-based firewall and routing software developed by Deciso, a company in the Netherlands that makes hardware and sells support packages for OPNsense.

PicoBSD is a discontinued single-floppy disk version of FreeBSD, one of the BSD operating system descendants. In its different variations, PicoBSD allows one to have secure dial-up Internet access, a small diskless router, or a dial-in server, all on one standard floppy disc. It runs on a minimum 386SX CPU with of RAM (no hard drive required).

real-time operating system (RTOS) software

XigmaNAS is an open-source network-attached storage (NAS) server software with a dedicated management web interface. It is a continuation of the original FreeNAS code, which was developed between 2005 and late 2011. It was released under the name NAS4Free on 22 March 2012. The name was changed to XigmaNAS in July 2018. On SourceForge, it was elected "'Community Choice' Project of the Month" twice, in August 2015 and March 2017.

container system

package management system

sysctl is a software mechanism in some Unix-like operating systems that reads and modifies the attributes of the system kernel such as its version number, maximum limits, and security settings. It is available both as a system call for compiled programs, and an administrator command for interactive use and scripting. Linux additionally exposes sysctl as a virtual file system.

permissive free software licence

freeware and shareware provider

Linux distribution

GEOM is the main storage framework for the FreeBSD operating system. It is available in FreeBSD 5.0 and later releases, and provides a standardized way to access storage layers. GEOM is modular and allows for geom modules to connect to the framework. For example, the geom_mirror module provides RAID1 or mirroring functionality to the system. A number of modules are provided as part of FreeBSD and others have been developed independently and are distributed via (e.g.) GitHub.

ALTQ (ALTernate Queueing) is the network scheduler for Berkeley Software Distribution. ALTQ provides queueing disciplines, and other components related to quality of service (QoS), required to realize resource sharing. It is most commonly implemented on BSD-based routers. ALTQ is included in the base distribution of FreeBSD, NetBSD, and DragonFly BSD, and was integrated into the pf packet filter of OpenBSD but later replaced by a new queueing subsystem (it was deprecated with OpenBSD 5.5 release, and completely removed with 5.6 in 2014).

bhyve (pronounced "bee hive", formerly written as BHyVe for "BSD hypervisor") is a type-2 (hosted) hypervisor initially written for FreeBSD. It can also be used on a number of illumos based distributions including SmartOS, OpenIndiana, and OmniOS. A port of bhyve to macOS called xhyve is also available.