borgbackup (deduplicating backup program)

BorgBackup (short: Borg) is a deduplicating backup program.

Optionally, it supports compression and authenticated encryption.

The main goal of Borg is to provide an efficient and secure way

to backup data. The data deduplication technique used makes Borg

suitable for daily backups since only changes are stored. The

authenticated encryption technique makes it suitable for backups

to not fully trusted targets.