CD Linux Server is an embedded Linux system on a bootable live CD. It can be used to set up mail, Web, file, FTP, proxy, DHCP, DNS, MySQL, LDAP, and other services very quickly. The mail server includes antivirus, antispam, and mail recorder features. It can be used for free for up to 10 accounts, while the advanced version is licensed for an unlimited number of users. There is not any restriction against the time.
Fritz!WRT is a set of patches to make the OpenWRT trunk run on AVMs Fritz!Box. Much progress has been made in recent OpenWRT revisions in the AR7 port, but it's still not running on the Fritz!Box. The patches also have the potential to make the T-Com SpeedPort run, because its hardware is very similar to that of the Fritz!Box. There are patches for the bootloader, LED support, and watchdog support, as well as KGDB support.
eINIT is an alternative init system. It's quite fast, since it can potentially be used without the help of any scripting at all, but it is still flexible and extremely modular. The focus is on speed and parallelisation, mostly with embedded devices and low-downtime servers in mind, and benchmarks do suggest that it's doing a fairly good job at that. It compiles cleanly (and should thus work, provided someone writes appropriate modules) on Linux, FreeBSD, and Darwin/Mac OS X.
Lan Core is software that lets you build a thin client network on a Windows operating system. It was originally designed to work in a server or workstation with Windows XP Professional and using the native remote desktop protocol or RDP. To this end, the Lan Core package includes: (1) the Preboot Execution Environment or PXE service, a server application used to boot the thin clients (also referred as terminals or clients) in a local area network; (2) the thin client operating system (Thin OS), an embedded system based on Linux; and (3) an interface application used to manage the PXE service and thin clients. The thin clients' boot is done through a local area network (LAN), and it is based on the Preboot Execution Environment (PXE) protocol. In order to do it, Lan Core also provides two additional services: a DHCP server and a Trivial FTP server for Windows, used to assign IP addresses and transfer boot files, respectively.
iloog is a Gentoo-based live CD targeted mainly at students and scientists. It features UnionFS filesystem support that enables you to write everywhere on the LiveCD and install extra packages, a graphical X environment through the Fluxbox window manager, many programming editors and IDEs, and a plethora of scientific applications, including Octave, Namd, Merlin, and full (La)TeX support.
grubinstall is a simple program with clear documentation to take the mystery out of the GRUB boot loader. It installs GRUB in an especially simple, robust, hard-to-screw-up form: in a dedicated contiguous boot area at the beginning of the boot disk. This is in contrast to the tools in the GRUB package, which get filesystems involved.
WrapLinux is a utility to wrap a Linux kernel, together with a kernel command line and one or more initrd/initramfs files into a single file in ELF or NBI format. This is required by certain boot protocols, such as Etherboot/Netboot, and may otherwise be desired for consistency reasons. It can be considered a replacement for the mknbi and mkelf utilities.
ramlog acts as a system daemon that maintains log files in memory instead of hard disk while the system is running. On startup, it creates a ramdisk, copies files from /var/log into the ramdisk, and mounts the ramdisk as /var/log. All logs after that will be updated on the ramdisk. When shutting down or restarting the service, it saves log files back to hard disk. This service drastically reduces the frequency of hard disk usage, which can be useful when the system runs on battery or uses flash memory instead of a hard disk.