Babackup is a tool providing secure, time-traveling backup via ssh and rsync. Its goal are: (1) no mysteries: using standard tools; (2) high security: uses ssh and rrsync to avoid remote shells; (3) history: you can time-travel to old versions; (4) storage efficency: data is de-duplicated
Pre-built versions for RPM (Fedora, CentOS, REHL): see https://copr.fedorainfracloud.org/coprs/antisi/