dar is a Backup and archiving tool. You can think of it as as more modern tar. It supports both streaming and random-access modes, supports correct incrementals (unlike GNU tar’s incremental mode), Encryption, various forms of compression, even integrated rdiff deltas.

It is an ideal tool for backups over Asynchronous Communication for systems that don’t or can’t run ZFS.

Homepage: http://dar.linux.free.fr/

Filespooler makes an excellent tool for handling Backups. In fact, this was the case the prompted me to write it in the first place.