Bacula - The Network Backup Solution

Bacula - It comes by night and sucks the vital essence from your computers.
 Bacula is a set of computer programs that permit you (or the system
 administrator) to manage backup, recovery, and verification of computer
 data across a network of computers of different kinds. In technical terms,
 it is a network client/server based backup program. Bacula is relatively
 easy to use and efficient, while offering many advanced storage management
 features that make it easy to find and recover lost or damaged files.
 Bacula source code has been released under the GPL version 2 license.