alcolix is a minimal Linux rescue distribution with the goals of being small, compatible, and very usable. It has a cozy shell and a multitude of partition rescue/editing tools, all based on up-to-date releases (e.g., 2.4.x kernel with USB support). It uses cpio.bz2 data disks and has a full GRUB bootloader, memtest86, and more.
OKL4 Microkernels are a family of second-generation microkernels based on the original designs and implementations by Jochen Liedtke. Originally implemented in highly tuned i386-specific assembly language code, the API has seen extensive development in a number of directions, both in achieving a higher grade of platform independence and also in improving security, isolation, and robustness. There have been various re-implementations of the original binary kernel interface and its higher level successors, including L4Ka::Pistachio, L4/MIPS, and Fiasco. For this reason, the name L4 now applies to the whole microkernel family including the L4 kernel interface and its different versions.
ReVirt is part of the CoVirt project, which investigated on the use of virtual machines to provide security in an operating-system-independent manner to enable the security system to function independently from the guest operating system. ReVirt logs enough information to replay the entire intrusive sequence instruction-by-instruction so that a detailed observation on the attack can be documented. It includes a system called BackTracker that helps system administrators understand (and thereby recover from) an intrusion, by automatically identifying potential sequences of steps that occurred in an intrusion. Starting with a single detection point (e.g., a suspicious file), BackTracker identifies files and processes that could have affected that detection point and displays chains of events in a dependency graph.
Himerge is a GUI for emerge (Gentoo's Portage system) written in Haskell using gtk2hs. The main idea is to simplify browsing the entire portage tree, and allow running the most basic and common options from the emerge command. It also offers several handy tools, like global and local use flags browsers, inspired by UFED (the Gentoo Linux USE flags editor). It also uses eix (a small utility for searching ebuilds with indexing for fast results) as a back-end command to show package information in HTML/CSS format, so you can access a package's Web site for a quick glance.
btfs can be used as /init for constructing a run-time environment before running the real init. It supports extracting compressed (*.cgz, *.cbz2) and uncompressed (*.co) cpios located on a compile-defined directory (/). Also, it creates a tmpfs filesystem as the new root, if / isn't one already and the purpose of the initramfs isn't for starting a system in another location (disk, network, etc.). That will allow for the data on / to be swapped to disk when swap devices are activated later.
CrossSync is a Web-based client/server configuration management platform. It provides a simple, easy to use, but powerful API platform for managing any number of heterogeneous Unix systems. Administrators can track configuration changes made anywhere across their network, simultaneously roll out new configurations to multiple servers, and restart services on many servers at once, even if they are running different operating systems. A light-weight agent application runs on each of the organization's servers to securely communicate with the CrossSync platform.
TigerCube is an operating system that offers an all-in-one communications platform (including an advanced phone system and email), network security (with a firewall, content filtering, and virtual private networking), file sharing, and a fully integrated backup solution under a single, unified environment. TigerCube is free to use for up to 5 users.