PelicanHPC is a live CD image that allows for rapid creation of a HPC cluster for parallel computing using MPI.
R Language Tutorial for SAS, SPSS, and Stata Users
SecurityDistro provides a social based training experience about live security distributions. It also includes Screenshots, Video Tutorials, Modules, Screencasts, and other content related to security.
PacketFence Open Source NAC
Home of the pfSense project, free Open Source FreeBSD based firewall, router, unified threat management, load balancing, multi WAN, Linux
The bad packets stop here!
Vyatta is working to restore the open environment and culture of the Internet's past by developing a line of enterprise-grade, open-source, network infrastructure products, including routers and firewalls. The Vyatta OFR provides an open-source alternative to proprietary, closed-source routing products.
OpenThinClient is an Open Source Thin Client Solution consisting of a Linux based operating system along with a comprehensive Java based management GUI and server component. It is intended for environments where a medium to large number of ThinClients must be supported and managed efficiently. Offering flexibility unheard of in the world of proprietary ThinClient solutions, openthinclient.org empowers developers and integrators to create advanced ThinClient solutions... for free.