Umbrello UML Modeller is a Unified Modelling Language diagram tool for KDE. It is able to produce all types of UML diagrams. It imports C++, and it generates code in 10 languages. It uses an XMI-based file format. It is part of KDE, with sources and packages available for those using older versions of KDE.
PSC (Perl Secure Conf) is a setuid wrapper and Perl module for securely passing configuration data to Perl scripts, especially DBI passwords etc. The wrapper opens a conf file, drops priviledge, and then execs the Perl script, leaving the filehandle available to the Perl script for reading (and writing, if allowed). Config::Secure is a module (available on CPAN as well) that initializes, and optionally parses the config file. Please note this is still vera alpha, yet seems to work smoothly.
rc.firewall is configurable for dialup and static IP addresses. It is based on Linux-kernel 2.4.x, and it generates it's own configuration file. It supports specific port filtering for the internet- , intranet-, and a dmz-zone. For the DMZ-Zone, there is also a machine-specific port filtering, and redirection of specific ports of the internet-interface available. Note: Do not install this in productive environments, until you have checked the rules/tables with your own eyes.
"Tux, of Math Command" is an educational math tutorial game for elementary school level children. Like so many other Linux games, it stars Tux, the Linux Penguin. Players must answer math equations to shoot down comets which are falling towards their cities. It can run on Linux/UNIX, Win32, Mac, and BeOS.
BitchBurn is a bash script written to make life as a CD burner a bit easier. It covers the most common options in a very simple way. The extended features of the handy tool are: cleaning CDRWs, copying data/audio discs, burning directories to disc, burning iso's to disc, and burning mp3 directories to audio discs.