Open Source Solid Modeling CAD
BRL-CAD is a powerful cross-platform constructive solid geometry solid modeling system that includes an interactive geometry editor, ray-tracing for rendering & geometric analyses, network distributed framebuffer support, image & signal-processing tools.
Earth orbits and coverage display in 3D on your laptop.
SaVi - simulate Iridium, Globalstar, O3b, Sirius Radio, GPS, Galileo and other satellite constellations, modify them, or design your own. Uses Tcl/Tk and Unix libraries; 3D viewing option requires Geomview running on X Window.
Highly scalable/configurable Messaging Platform allowing users in a domain to be distributed on multiple hosts, has multiple queues. Provides virtual domains/users in MySQL. Modern MSP class qmail replacement with ESMTP, POP3/IMAP, QMTP, QMQP support
This is a Tcl/Tk interface to a set of FORTRAN subroutines which implement empirical formulae for Physical Sputtering, Chemical Sputtering, Radiation Enhanced Sublimation. More PSIs to be added (Backscattering, etc..)
BatchLogin is a shell connection virtualization program. It allows a user on a complex network to connect and execute scripts and commands upon groups of machines without having to deal with the connection specifics every time.
IRCd server for VolimNet chat network based on Unreal
An online SSL (128-bit strong encryption) repository for scripts created and maintained by Synopsys Design Consultants.
VR is a full-featured UNIX System Administration tool and network monitoring system. Complete network status is available at a glance. Network connectivity changes are announced vocally. Streamlines Sys Admin chores.