oDns is a simple php/Perl/MySQL frontend to the BIND 8.2.1 Name Server. All the hosts information is saved in four SQL tables. The php-based Web frontend allows you to add/edit/remove domains (primary and slaves) and contact information. In the background, Perl is used to generate standard named.conf and specific zone files for all the primary domains.
RAT is an RTP audio conferencing and streaming application that allows users to particpate in point-to-point and multi-point audio conferences over the Internet. Developing features include multiple sampling rates, mono/stereo, loss concealment, and IPv4/IPv6 support, and both versions feature encryption and run on a range of platforms.
The BRU Backup and Restore Utility features data-verified backups, scalability, configurability, and ease of use for Linux and Unix. Versions are available for Linux, FreeBSD, and most UNIX variants. It works via an X11 interface, command line interactive, or through a scripted, scheduled (CRON) mechanism.
Mondo Rescue archives Linux and Linux/Windows systems to tapes, CDs, DVDs, USB devices, or ISO images that may be used to restore some or all of your OS and data in the event of catastrophic data loss, or for cloning a system. The emphasis is on stability and ease of use. Currently, ext2, ext3, ext4, (v)fat, minix, ReiserFS, XFS, and JFS filesystems are supported, as are RAID, DM, Multipath, and LVM.
iptables is built on top of netfilter, the packet alteration framework for Linux 2.4.x and 2.6.x. It is a major rewrite of its predecessor ipchains, and is used to control packet filtering, Network Address Translation (masquerading, portforwarding, transparent proxying), and special effects such as packet mangling.
x10mp3 is a plugin for XMMS to control it using X10's Mp3Remote, which comes with Mp3Anywhere, Mp3Anywhere 2000, or DVDAnywhere. It has all the functionality of X10's BOOM2000 software for Windows, plus other handy features like muting, skipping around inside tracks, and balance control.