FrazierWall Linux is a single floppy distribution Linux firewall that is based on the Linux Router Project. It is designed for use with ethernet base internet connections (such as cable modems or xDSL lines). It allows you to share such a connection with several other computers on a LAN. It is easy to setup and maintain, and is available in a Linux configurable software version.
Design/CPN is a graphical tool supporting the use of Hierarchical Timed Coloured Petri Nets. The Editor supports construction, modification, and syntax check of CPN models. The Simulator supports interactive and automatic simulation of CPN models. The Occurrence Graph Tool supports construction and analysis of occurrence graphs for CPN models (also known as state spaces or reachability graphs). The Perfomance Tool supports simulation-based performance analysis of CPN models.
Mandelbrot Cellular Automaton Combines features of the Mandelbrot set and Conway's Game of Life. Displays snapshots of the Mandelbrot set at each stage of calculation; optionally includes interference from neighbouring cells (pixels) for a nonlinear and somewhat unpredictable result. Options are set at compile time. Most suitable for fractal or cellular automata enthusiasts; also visually interesting.