Slax is a modern, small, and fast Linux operating system with a modular approach and outstanding design. Despite its small size, which is below 200 megabytes, Slax provides a wide collection of pre-installed software for daily use, including a well organized graphical user interface (KDE4) and useful recovery tools for system administrators. The modular approach gives you the ability to include any other software in Slax easily, by downloading a module with the software, without having to install or configure it.
PLD RescueCD is a bootable disk that contains a live Linux distribution based on PLD Linux x86 and x86-64. It uses transparent xz compression to fit about 180 MB of software onto a single mini CD in a usable form. It can be used to rescue ailing machines, perform intrusion post-mortems, or act as a temporary secure Linux-based workstation. It is possible to boot via PXE and from USB devices.
blueflops is a two-floppy Linux distribution with a graphical Web browser (links) and an IRC client (rhapsody). The kernel has most of the Ethernet drivers compiled in as modules (including the PCMCIA ones) and PPP support (for dialup connections). The browser is linked with OpenSSL. The scripts are all accessible by a setup script and have a nice dialog frontend.
UHU is the leading distribution of Linux in Hungary. It is primarily intended for Hungarian users, thus special care is taken to support the Hungarian language as much as possible. Ease of installation and sane default settings both help new users of Linux and make veterans feel comfortable. Usability as the main goal involves having all the cutting-edge yet stable releases of Open Source packages, with dpkg as the package manager. Development is completely open and everyone is invited to join.
The Linux User Management System allows an organization to centrally manage their Linux users. It works with all distributions of Linux and in conjunction with GeKL's KDE User Desktop Management System (UDMS). Admins can use it to create groups, import large numbers of users and establish system profiles, and easily maintain profiles.
Thinstation is a mini Linux distribution that enables you to convert standard PCs into full-featured, diskless thin clients supporting all major connectivity protocols like Windows terminal services (RDP), Citrix Ica, X, NX, telnet, ssh, etc. It can be booted from the network using Etherboot/PXE or from standard media like floppy/CD/hd/flash-disk etc. The configuration is centralized to simplify terminal management.
GeeXboX is a standalone media player Linux distribution, similar to MoviX. It's a small bootable CD that allows you to play your favorite video (DivX, XviD, H.264, MPEG 1/2, VCD, DVD, OggMedia, Windows Media, RealMedia, etc.) and audio (MP3, Audio CD, Ogg Vorbis, FLAC, MPC, etc.) files. It also supports networking, and is able to play media from Windows/Samba share, NFS, UPnP A/V Media Servers, RTP/RTSP servers, or SHOUTcast. It supports TV-out, TV tuners, DVB cards, and WiFi cards. It is based on MPlayer, and can be used on any x86, x86_64, or PowerPC computer. It's easy to modify the source to build your own GeeXboX or use an alternative boot method.