Unsure what a Linux distribution is? Read the Linux Distribution Guide
BackTrack is a Linux-based penetration testing arsenal that aids security professionals in the ability to perform assessments in a purely native environment dedicated to hacking. hot
Debian is a free operating system (OS) for your computer. Debian GNU/Linux provides more than a pure OS: it comes with more than 18,000 packages, precompiled software bundled up in a nice format for easy installation on your machine. Debian will run on almost all personal computers, including most older models. Each new release of Debian generally supports a larger number of computer architectures. Debian is produced by almost a thousand active developers spread around the world who volunteer in their spare time. Read more hot
The Fedora Project is an open source project sponsored by Red Hat and supported by the Fedora community. It is also a proving ground for new technology that may eventually make its way into Red Hat products. It is not a supported product of Red Hat, Inc. The Fedora Project announces a new major release of Fedora Core every four to six months. Read more hot
A special flavor of Linux that can be automatically optimized and customized for just about any application or need. Extreme configurability, performance and a top-notch user and developer community are all hallmarks of the Gentoo experience. Thanks to a technology called Portage, Gentoo Linux can become an ideal secure server, development workstation, professional desktop, gaming system, embedded solution or something else -- whatever you need it to be. Because of its near-unlimited adaptability, we call Gentoo Linux a metadistribution. Read more hot
Mandriva Linux, formerly known as Mandrake Linux, is a friendly Linux Operating System which specializes in ease-of-use for both servers and the home/office. It is freely available in many languages throughout the world. The Mandriva Linux PowerPack contains more than 2300 high-quality applications including a complete Office Suite of programs, plus installation support, for a cost of approximately 10 times less than the equivalent Microsoft Windows + MS Office cost, which comes without any technical support. Read more hot
Red Hat Enterprise Linux
Red Hat Enterprise Linux is the leading platform for open source computing. It is sold by subscription, delivers continuous value and is certified by top enterprise hardware and software vendors. From the desktop to the datacenter, Enterprise Linux couples the innovation of open source technology and the stability of a true enterprise-class platform. Read more hot
The Official Release of Slackware Linux by Patrick Volkerding is an advanced Linux operating system, designed with the twin goals of ease of use and stability as top priorities. Including the latest popular software while retaining a sense of tradition, providing simplicity and ease of use alongside flexibility and power, Slackware brings the best of all worlds to the table. Slackware Linux is a complete 32-bit multitasking "UNIX-like" system.i It's currently based around the 2.4 Linux kernel series and the GNU C Library version 2.3.4 (libc6). It contains an easy to use installation program, extensive online documentation, and a menu-driven package system. Read more hot
SuSE Linux Professional delivers the features you need most for home computing and networking. SUSE LINUX Professional also includes more than 1,000 of the world's leading open source applications. From established solutions like Firefox and OpenOffice.org to "first looks" at emerging technologies like Beagle and Xen. Read more hot
A Linux distribution that starts with the breadth of Debian and adds regular releases (every six months), a clear focus on the user and usability (it should "Just Work", TM) and a commitment to security updates with 18 months of support for every release. Ubuntu ships with the latest Gnome release as well as a selection of server and desktop software that makes for a comfortable desktop experience off a single installation CD. Read more hot
XBMCbuntu (previously known as XBMC Live) is the XBMC Media Center software bundled with an embedded operating-system, all pre-packaged to give a set-top-box feeling. Read more hot
64 Studio is a collection of software for digital content creation on x86_64 hardware (that's AMD's 64-bit CPUs and Intel's EM64T chips). It's based on the pure 64 port of Debian GNU/Linux, but with a specialised package selection and lots of other customisations. It will be marketed to hardware OEMs in the creative workstation and laptop markets as an alternative to the 64-bit version of Windows XP, or OS X on Apple hardware. Read more
Absolute Slackware is a fast Slackware derivative Linux distribution that uses a Icewm and ROX-Filer window/file manager combination. It comes with Firefox, The GIMP, MPlayer, K3B, Azureus, Gaim, Frostwire, Gftp, StarDict, and many other titles all set up and ready to run. Several utilities are included to ease configuration and management. It is compatible with all Slackware 11 packages and can be installed just like a Slackware disk, except that any choice of packages is removed, as it just installs everything. Read more
Absolute Linux is a lightweight Slackware derivative that uses an Icewm, pcmanfm, ROX-Filer, ivman, and others to create a lightweight yet easy to use distribution. Installation is text-based but simplified, and all packages are installed at once.
Aegis Linux is a PCLinuxOS based distribution that will be tailored for the small to mid size business and professional user. It will have a server and desktop version.
AGNULA is a GNU/Linux Audio distribution, pronounced with a strong g: main task will be the development of two reference distributions for the GNU/Linux operating system completely based on Free Software (i.e. under a FSF approved Free Software license) and completely devoted to professional and consumer audio applications and multimedia development.
aLinux is a Professional Linux Operating System (700MB) designed for ease of use and sports a visually stunning Graphical User Interface, while maintaining a level of sophistication that experienced linux users can appreciate.
Aloofix is conceptually similar to the Ubuntu JeOS (Just enough OS), but much more aggressive when it comes to the term "just enough". The build environment consists of a collection of Makefiles, scripts, and configuration files capable of creating a bootable ISO image. This ISO image contains a small set of scripts and utility programs for installing Aloofix on a primary hard drive in a VM environment. The build environment provides the raw materials for creating and provisioning a set of guest instances for VirtualBox, VMWare, and Qemu.
andLinux is a complete Linux distribution based on Ubuntu that runs seamlessly in Windows without the need to partition, reboot, or configure.
antiX is a fast, lightweight and easy to install linux live CD distribution based on Debian Testing for Intel-AMD x86 compatible systems.
A distribution of the GNU system and consists only of Free Software.
aptosid is an operating system based on the Debian GNU/Linux unstable branch, codenamed sid, and our ISOs hold fast to the core values and the Social Contract of Debian (DSFG).
Arch Linux is a general purpose linux distribution that can be molded to do just about anything. It is fast, lightweight, flexible, and most of the parts under the hood are quite simple to understand and tweak, which can make it a good distro to "learn the ropes" on. We do not provide any configuration helper utilities (ie, you won't find linuxconf in here) so you will quickly become very proficient at configuring your system from the shell commandline. Arch Linux uses i686-optimized packages which gives us improved performance over some of our i386-optimized cousins. This means that Arch Linux will only run on a Pentium II processor or higher. We try to stay fairly bleeding edge, and typically have the latest stable versions of software.
AriOS is based on Ubuntu. AriOS comes with many extra applications, multimedia codecs, flash and java plugins, many tweaks and a unique look and feel
Ark Linux is a GNU/Linux distribution designed especially for desktop use, primarily for people without prior Linux experience.
Asianux is a Linux server operating system which is co-developed by Chinese Leading Linux vendor Red Flag Software Co., Ltd. and Japanese Linux vendor Miracle Linux Cooperation, aiming at the common-standard enterprise Linux platform for Enterprise systems in the Asia. It provides enterprise customers with high reliability, scalability, manageability and better hardware & software compatibility.
The Asterisk@Home project enables the home user to quickly set up an Asterisk PBX. A web GUI makes configuration and operation easy. We also provide an xPL (home automation) interface for easy interaction with other devices in the home.
AV Linux is a non-GPL custom shop modded and rodded Linux based Operating System built from a hand-picked selection of available tools including Debian/GNU Linux, the LXDE Desktop Environment and Remastersys.
(ftp only) a distribution that is based on RedHat and additionally includes Kerberos, IPv6, MobileIP and native support for WaveLAN cards
BearOps Desktop Linux OS
BearOps Desktop Linux OS is bundled with office suite software, web browsers, games and entertainment, other applications and utilities for maximum productivity.
A desktop operating system with a lightweight and object oriented GUI that doesn't rely on X11.
Bernhard's Bootable Linux CD
BBLCD is the acronym for Bernhard's Bootable Linux CD. BBLCD is a toolkit for building your own bootable Linux CD from your favorite (and possibly customized) distribution.
BinToo GNU/Linux is a binary Gentoo-based distribution with 2,000+ pre-built packages/applications.
Bio-Linux provides both standard and cutting edge bioinformatics tools on a Linux base. It is powerful, configurable and easy to maintain. Bio-Linux has been customised for ease of use and provides an ideal system for scientists handling and analysing biological data. Bio-Linux also comes with many development tools, providing a solid base for bioinformatics software development. It can also be easily deployed as a computer cluster.
An open source Linux distribution based on the NPACI Rocks cluster software and enhanced for bioinformaticists and life scientists. While it looks, feels, and operates like ordinary Red Hat Linux, BioBrew Linux includes popular cluster software e.g. MPICH, LAM-MPI, PVM, Modules, PVFS, Myrinet GM, Sun Grid Engine, gcc, Ganglia, and Globus, *and* popular bioinformatics software e.g. the NCBI toolkit, BLAST, mpiBLAST, HMMER, ClustalW, GROMACS, PHYLIP, WISE, FASTA, and EMBOSS.
Black Cat Linux
A Red Hat based Linux OS distribution was designed by Donbass Linux User Group members Leonid Kanter and Alexander Kanevskiy.
Blackbuntu is distribution for penetration testing which was specially designed for security training students and practitioners of information security. Blackbuntu is Ubuntu base distro for Penetration Testing with GNOME Desktop Environment.
BLAG Linux And GNU
BLAG Linux And GNU is a Linux distribution that has a suite of graphics, Internet, audio, video, office, and peer-to-peer file sharing applications. BLAG is based on Red Hat 9, and has been reduced to one CD.
Bluewall is a GNU/Linux distribution based on Debian SID and pkgsrc. It aims to create a complete pkgsrc-based GNU/Linux distribution.
Bluewhite64 Linux is an unofficial port of Slackware Linux to the AMD64/EM64T architectures. It runs on 64-bit AMD Athlon, Opteron, Sempron, and Intel EM64T (Intel Extended Memory 64 Technology) based servers and computers. The goal of this port is to mimic the user experience of the Intel x86 distribution at its best. This port includes the same software and configuration scripts found in slackware-current tree.
Bodhi is a minimalistic, Linux distro that uses the Enlightenment desktop. It comes as a 350MB download.
BU Linux is based on Fedora Core Linux, but specifically tailored for the BU environment. We've added security updates, made modifications to make software work better with the way things are set up here, and added some applications that we think you might like to have.
Cadaz GNU/Linux is a free and open source operating system designed for PHP developers who always work while mobile.
Calculate Linux is a compiled stage4 - the image of meta-distribution Gentoo Linux, has its own installer is available as an image archive system, either in ISO-boot disk format.
Cantivo Linux is a distribution and platform for desktop/server virtualization using the KVM hypervisor and SPICE protocol, managed from an intuitive Web interface.
cAos Linux is a community maintained and managed, RPM based distribution of Linux. It combines aspects of Debian, RH/Fedora, and FBSD in a manner that ends up with a solution that is stable enough for servers and clusters, utilizes a long term life cycle (3-5 years), and built from current cutting edge packages (as of today). It also includes many of the features that are considered standard for desktops and laptops, which makes it a very good general purpose Linux distribution.
CCux Linux is a GNU/Linux Distribution especially optimized for i686 and higher Processor Architectures. For Package Management it uses the old fashioned rpm Format in connection with the also well known apt Tools. Using that, it features automatic Dependency resolving when installing new Software and so making the Installation of new Software much more easier.
CentOS is an Enterprise-class Linux Distribution derived from sources freely provided to the public by a prominent North American Enterprise Linux vendor (RedHat). CentOS conforms fully with the upstream vendors redistribution policy and aims to be 100% binary compatible. Read more
The purpose of Cinnarch is to produce a modern, elegant and powerful operating system based on one of the best linux distro out there, Arch Linux.
CloudLinux is especially designed for shared hosting with the aim to improve stability. It features tenant isolation, kernel level technology to set resource limits per tenant, and more.
the first working free and open source method for optimally running Linux on Microsoft Windows natively. More generally, Cooperative Linux (short-named coLinux) is a port of the Linux kernel that allows it to run cooperatively alongside another operating system on a single machine. For instance, it allows one to freely run Linux on Windows 2000/XP, without using a commercial PC virtualization software such as VMware, in a way which is much more optimal than using any general purpose PC virtualization software