ncap is a network capture library like libpcap (on which it is based) and tcpdump. It produces binary data in its own ncap format, which can be stored in a dump file or transmitted over a UDP socket. Unlike libpcap, it discards data link headers and only supports IPv4 and IPv6 packets, but it can perform reassembly of IP datagrams.

ESE Key Daemon is a multimedia keyboard daemon for Linux. With the 2.6 kernel series it can also handle remote controls, as they are presented as keyboards. No kernel patch is required. It is a userspace program that pools /dev/input/event? interfaces for incoming keyboard key presses.

The advantage of nap over other graphical clients like gnome-napster is that you can run it under screen(1) on a remote host and disconnect from your session while nap continues the downloads. You can later reconnect to your running client even from another host and do more commands.

A mailing list manager with roughly the same functionality as ezmlm.

colortail works like tail but can optionally read one or more config files where it's specified which patterns results in which colors. Colortail uses regular expressions (see regex(7)) to determine which lines and parts of lines to print in which colors.