Nmap is a utility for network exploration or security auditing. It supports ping scanning (determine which hosts are up), many port scanning techniques, version detection (determine service protocols and application versions listening behind ports), and TCP/IP fingerprinting (remote host OS or device identification). Nmap also offers flexible target and port specification, decoy/stealth scanning, sunRPC scanning, and more. Most Unix and Windows platforms are supported in both GUI and commandline modes. Several popular handheld devices are also supported, including the Sharp Zaurus and the iPAQ.

Full Java runtime environment - needed for executing Java GUI and Webstart programs, using Hotspot Zero.

This is a MIDI/Audio multi-track sequencer application written in C++, with LV2, VST3, CLAP, VST2, DSSI, & LADSPA hosting capabilities.

Rakarrack is a guitar effects processor for GNU / Linux simple and easy to use but it contains features that make it unique in this field of applications.