Vuurmuur is a firewall manager for Linux that supports IPv4, IPv6, and traffic shaping. It has powerful monitoring features for logging and live connections. It can be managed entirely through an Ncurses GUI, on the console, or through SSH.
ttyrpld is a multi-OS kernel-level tty key and screen logger. Recorded sessions can be followed live or replayed at a later time. Supported platforms are Linux, Solaris, FreeBSD, NetBSD, and OpenBSD.
A full featured file system for Amazon S3 and other online storage services.
A functional emulator for new IA-32 and Intel64 instructions.