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ZevenOS distribution based on Debian 7.0, primarily designed as a Live System for USB drives; includes a new kernel with enhanced hardware support, and comes with KDE Plasma Desktop and multimedia programs. Fast and secure download from The H

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Unix-based operating system for various platforms under the BSD licence. Offers integration with the virtualisation program Xen 3, bluetooth support, the UDF file system, WPA encryption for WLANs, support for the power management function of current Intel and AMD processors as well as iSCSI protocol implementation.

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Debian-based, bootable Linux CD distribution (LiveCD) for system administrators. Includes integrated hard disk and network tools and allows installing of different operating systems.

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UNIX derivative based on FreeBSD. Offers (among other features) crypto support for encrypting Hammer and UFS file systems. Available for 32- and 64-bit systems as an ISO image, USB image or a USB image with a Graphical User Interface. Further information is available from The H.

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Free Unix derivative for all standard computer architectures. Supports the binary emulation of many SVR4 (Solaris), FreeBSD, Linux, BSD/OS, SunOS and HP-UX system programs. Provides multi-processor support for Octane workstations and supports SGI’s Origin, Onyx and Tezro systems.

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Simple Linux distribution without guides for graphical installation and configuration. Based on ideas from CRUX. Primarily aimed at advanced users. Optimised for i686 and x86-64 architectures.

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Another variant of the Linux distribution Ubuntu, which has XFCE instead of GNOME as a desktop interface and is therefore specifically designed for older computers. Long Term Support (LTS) version 12:04 is still available. Fast and secure download from The H

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This version of Ubuntu was specially developed for use in schools and has numerous educational applications and games. Fast and secure download from The H

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A derivative of the Ubuntu Linux distribution Ubuntu, which relies on KDE as a desktop interface. Fast and secure download from The H

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Debian-based Linux distribution that only contains free software. Suitable for Linux beginners. Version 12.04 LTS (with long-term support) is also available to download. For further information on the latest version 12.10, see The H. Fast and secure download from The H

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An operating system written in Assembler, with multi-threading and a supported screen resolution of up to 1280x1024 pixels. Features include FTP, email, HTTP and chess clients, as well as programs for playing DVDs and MP3s. Licensed under the GNU General Public Licence and small enough to fit onto a floppy.

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Small Live Linux distribution based on Slackware for use in a desktop environment. Includes numerous preinstalled applications and useful recovery tools. Distributed as an ISO image as well as a TAR archive.

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Installs a portable Linux operating system onto a USB stick or a memory card of 1GB or more.

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Linux-based Small Business Server. Can act as a gateway, infrastructure manager, unified threat manager, office server or unified communication server.

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Linux distribution that includes numerous open source applications and newly created YaST modules (Partitioner, Printer and Security). Can be installed in an IPv6 environment (and others) and can also configure an IPv6 web server. Live CDs with Gnome or KDE Desktop can also be downloaded. Special variant for use in doctors’ practices and clinics available.

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Linux distribution for corporate operations. Uses a KVM (Kernel-based Virtual Machine) hypervisor virtualisation technique so need processors that support virtualisation. Also supports Kernel Samepage Merging (KSM) which shares identical memory pages among different processes.

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Live Linux distribution focusing on security, privacy and anonymity. Leaves no traces on the computer and uses the Tor network online.

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Boots Linux distributions directly from a CD or USB stick and runs exclusively in RAM, so no hard disk is required.

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E-book providing instructions on how to build a Linux system. Provides a step by step guide and teaches a basic understanding of how Linux works. The e-book is available as PDF, HTML and XML format.

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A Linux live CD based on Debian for analysing hardware and system recovery. Runs using grml-terminal server via a network, USB stick and USB or Firewall hard drives. Fast and secure download from The H

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