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PF (Packet Filter, also written pf) is a BSD licensed stateful packet filter, a central piece of software for firewalling. It is comparable to netfilter ( iptables ), ipfw , and ipfilter . PF was developed for OpenBSD , but has been ported to many other operating systems .
Launched in 2015, [2] it is a fork of pfSense, which in turn was forked from m0n0wall built on FreeBSD. [3] When m0n0wall closed down in February 2015 its creator, Manuel Kasper, referred its developer community to OPNsense.
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. [ 3 ]
BSDRP – BSD Router Project: Open Source Router Distribution; CheriBSD – ARM-embedded-focused FreeBSD adaptation ; Capability Enabled, Unix-like Operating System which takes advantage of Capability Hardware on Arm's Morello and CHERI-RISC-V platforms. ClonOS – FreeBSD based distro for virtual hosting platform and appliance.
BSD was originally derived from Unix, using the complete source code for Sixth Edition Unix for the PDP-11 from Bell Labs as a starting point for the First Berkeley Software Distribution, or 1BSD. A series of updated versions for the PDP-11 followed (the 2.xBSD releases).
The various open source BSD projects generally develop the kernel and userland programs and libraries together, the source code being managed using a single central source repository. In the past, BSD was also used as a basis for several proprietary versions of UNIX, such as Sun 's SunOS , Sequent 's Dynix , NeXT 's NeXTSTEP , DEC 's Ultrix and ...
Kernel normal form, or KNF, is the coding style used in the development of code for the BSD operating systems. Based on the original KNF concept from the Computer Systems Research Group, it dictates a programming style to which contributed code should adhere prior to its inclusion into the codebase.
Notable custom-firmware projects for wireless routers.Many of these will run on various brands such as Linksys, Asus, Netgear, etc. OpenWrt – Customizable FOSS firmware written from scratch; features a combined SquashFS/JFFS2 file system and the package manager opkg [1] with over 3000 available packages (Linux/GPL); now merged with LEDE.