GNU Mach is the microkernel upon which a GNU Hurd system is based. It provides an Inter Process Communication (IPC) mechanism which the Hurd uses to define interfaces for implementing in a distributed multi-server fashion the services a traditional operating system kernel provides. Mach is particularly well-suited for SMP and network cluster techniques. Thread support is provided at the kernel level, and the kernel itself takes advantage of that. Network transparency at the IPC level makes resources of the system available across machine boundaries.
se is a screen-oriented version of the classic UNIX text editor ed. The editor implements many of the commands of ed, but instead of being line-oriented, se is screen-oriented. The command syntax is very familiar to users who already know ed. If you get stuck, there is a built-in help system that describes many of the available commands. Many configurable options can be loaded from a .serc file. se can be run interactively or in a script via the included scriptse utility. The editor is portable across many platforms, supporting major Linux and BSD distributions as well as other systems like GNU, Minix, Haiku, OpenSolaris, and Cygwin.
Hogwash is a layer 2 packet scrubber based on the snort signature engine. Hogwash sits in line, and drops packets based on signature matches. The rule set will be familiar to anyone that has used snort before. Hogwash supports passive host identification and adaptive rule sets for added accuracy.
MajorTeach is a Perl script with documentation that teaches the Major System, a Mnemonics system that allows you to remember (in your brain, without additional hardware) long lists of knowledge (100 to 100,000 items long) in order, as well as long numbers, like tax ID numbers, phone numbers, credit card numbers, etc.
MoosicApplet is a GNOME panel applet which displays the current status of the Moosic jukebox server. It also provides some basic features for controlling the song player. It features a configurable layout and the ability to rewrite the song name in various ways to make it easier to read.
Debian package information is generally stored in files having a special file format, dubbed the Debian control file format (dctrl), a special case of the record jar file format. These tools operate on any files conforming in a general sense to that format, and are therefore widely applicable whenever this format is in play. The tools in this bundle are grep-dctrl, sort-dctrl, join-dctrl, and tbl-dctrl.