* [Backuppc](http://backuppc.sourceforge.net/) - Client-server model backup tool with file pooling scheme.
* [Brebis](http://brebisproject.org) - A fully automated backup checker
* [Burp](http://burp.grke.org/) - Network backup and restore program.
* [Duplicity](http://duplicity.nongnu.org/) - Encrypted bandwidth-efficient backup using the rsync algorithm.
* [Lsyncd](https://github.com/axkibe/lsyncd) - Watches a local directory trees for changes, and then spawns a process to synchronize the changes. Uses rsync by default.