dumpnet is a collection of bash scripts that allows you to backup multiple servers simultaneously. You can do incremental file system dumps with tar, dump and rsync, backup databases and much more. AIDE can also easily be integrated.
Simple script of backup using tar for *NIX systems and written in bash, very easy to suit whatever backup policy, using complete, incremental or parcial backups. It has some features for esample mail notification, index of files, error notices, etc.