Debian, also known as Debian GNU/Linux, is a Linux distribution composed of free and open-source software, developed by the community-supported Debian Project, which was established by Ian Murdock on August 16, 1993. The first version of Debian (0.01) was released on September 15, 1993, and its first stable version (1.1) was released on June 17, 1996. The Debian Stable branch is the most popular edition for personal computers and servers. Debian is also the basis for many other distributions, most notably Ubuntu.
Xfce or XFCE is a free and open-source desktop environment for Linux and other Unix-like operating systems.
In computing, Internet Key Exchange is the protocol used to set up a security association (SA) in the IPsec protocol suite. IKE builds upon the Oakley protocol and ISAKMP. IKE uses X.509 certificates for authentication ‒ either pre-shared or distributed using DNS ‒ and a Diffie–Hellman key exchange to set up a shared session secret from which cryptographic keys are derived. In addition, a security policy for every peer which will connect must be manually maintained.
Red Hat Enterprise Linux (RHEL) is a commercial open-source Linux distribution developed by Red Hat for the commercial market. Red Hat Enterprise Linux is released in server versions for x86-64, Power ISA, ARM64, and IBM Z and a desktop version for x86-64. Fedora Linux serves as its upstream source. All of Red Hat's official support and training, together with the Red Hat Certification Program, focuses on the Red Hat Enterprise Linux platform.
Technical variations of Linux distributions include support for different hardware devices and systems or software package configurations. Organizational differences may be motivated by historical reasons. Other criteria include security, including how quickly security upgrades are available; ease of package management; and number of packages available.
FreeS/WAN, for Free Secure Wide-Area Networking, was a free software project, which implemented a reference version of the IPsec network security layer for Linux. The project goal of ubiquitous opportunistic encryption of Internet traffic was not realized, although it did contribute to general Internet encryption.
Free and open-source software (FOSS) is a term used to refer to groups of software consisting of both free software and open-source software where anyone is freely licensed to use, copy, study, and change the software in any way, and the source code is openly shared so that people are encouraged to voluntarily improve the design of the software. This is in contrast to proprietary software, where the software is under restrictive copyright licensing and the source code is usually hidden from the users.
openSUSE is a free and open source RPM-based Linux distribution developed by the openSUSE project.
strongSwan is a multiplatform IPsec implementation. The focus of the project is on authentication mechanisms using X.509 public key certificates and optional storage of private keys and certificates on smartcards through a PKCS#11 interface and on TPM 2.0.
Opportunistic encryption (OE) refers to any system that, when connecting to another system, attempts to encrypt communications channels, otherwise falling back to unencrypted communications. This method requires no pre-arrangement between the two systems.
Linux is a family of open-source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991, by Linus Torvalds. Linux is typically packaged as a Linux distribution, which includes the kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name "GNU/Linux" to emphasize the importance of GNU software, causing some controversy.
gNewSense was a Linux distribution, active from 2006 to 2016. It was based on Debian, and developed with sponsorship from the Free Software Foundation. Its goal was user-friendliness, but with all proprietary and non-free software removed. The Free Software Foundation considered gNewSense to be composed entirely of free software.
FreeBSD is a free and open-source Unix-like operating system descended from the Berkeley Software Distribution (BSD), which was based on Research Unix. The first version of FreeBSD was released in 1993. In 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.
SuperTuxKart (STK) is a free and open-source kart racing game, distributed under the terms of the GNU General Public License, version 3. It features mascots of various open-source projects. SuperTuxKart is cross-platform, running on Linux, macOS, Windows, iOS (beta), Android systems and Nintendo Switch (homebrew).
Arabeyes is a free and open-source project that is aimed at fully supporting the Arabic language in the Unix/Linux environment. It was established in early 2001 by a number of Arab Linux enthusiasts. They made the "world's first Arabic Linux live CD." The name is a play on the word "Arabise", and "eyes" a term for many people.
Hugh Daniel was a noted computer engineer.
ClearOS is a Linux distribution by ClearFoundation, with network gateway, file, print, mail, and messaging services.
Debian releases do not follow a fixed schedule. Recent releases have been made roughly biennially by the Debian Project. The most recent version of Debian is Debian version 11, codename "Bullseye". The next up and coming release of Debian is Debian 12 codename "Bookworm".
Libreswan is a fork of the Openswan IPsec VPN implementation.
Rocky Linux is a Linux distribution developed by Rocky Enterprise Software Foundation, which is a privately owned benefit corporation that describes itself as a "self imposed not-for-profit". It is intended to be a downstream, complete binary-compatible release using the Red Hat Enterprise Linux (RHEL) operating system source code. The project's aim is to provide a community-supported, production-grade enterprise operating system. Rocky Linux, along with Red Hat Enterprise Linux and SUSE Linux Enterprise, has become popular for enterprise operating system use.
