BRL-CAD is a powerful constructive solid geometry solid modeling system that includes an interactive geometry editor, ray-tracing support for rendering and geometric analysis, path-tracing for realistic image synthesis, network distributed framebuffer support, and image and signal-processing tools.
U++ is a C++ cross-platform rapid application development suite focused on programmers' productivity without sacrificing runtime performance. Based on strictly deterministic design, it provides a viable alternative to garbage-collected platforms, even for business logic oriented problems.
SPF is a new strategy for preventing junk mail. The present SMTP standard for email allows anyone to forge anyone else's email address. SPF verifies that the Sender address of an email message matches (according to some policy) the client IP address that submitted it. libspf2 is a complete and robust implementation of SPF which provides support for many MTAs. Support for new MTAs is in progress.
The Open Virtual Machine Tools (open-vm-tools) are an open source implementation of VMware Tools. They are a set of guest operating system virtualization components that enhance the performance and user experience of virtual machines. The tools are currently composed of kernel modules for Linux and user-space programs for all VMware supported Unix-like guest operating systems. They provide several useful functions like file transfer between a host and guest, improved memory management and network performance under virtualization, and general mechanisms and protocols for communication between host and guests and from guest to guest.