Amanda is well know for taking backup for all the systems in network.

The Advanced Maryland Automatic Network Disk Archiver(AMANDA). Amanda is a backup system designed to archive many computers on a network to a single large-capacity tape drive. 


You can get more details in these links.

http://dir.filewatcher.com/d/NetBSD/1.6.1/vax/amanda-server-2.4.3b3.tgz.900663.html

http://rpm.pbone.net/index.php3/stat/4/idpl/4392195/com/amanda-server-2.4.4p4-3mdk.i586.rpm.html

www.amanda.org