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Ports collections (or ports trees, or just ports) are the sets of makefiles and patches provided by the BSD-based operating systems, FreeBSD, NetBSD, and OpenBSD, as a simple method of installing software or creating binary packages.
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).
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.
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 ...
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 .
The Berkeley Packet Filter (BPF; also BSD Packet Filter, classic BPF or cBPF) is a network tap and packet filter which permits computer network packets to be captured and filtered at the operating system level.