Bacula (Manage backup, recovery) - Client only

Bacula is a set of computer programs that permit you (or the system admin) 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. Due to its modular design, 
Bacula is scalable from small single computer systems to systems consisting 
of hundreds of computers located over a large network.