Manent is an algorithmically strong backup and
archival program. It features efficient backup to
anything that looks like storage. Currently it
supports plain filesystems ("directories"), FTP,
and SFTP. Planned are Amazon S3, optical disks,
and email (SMTP and IMAP). It can work (making
progress towards finishing a backup) over a slow
and unreliable network. It can offer online
access to the contents of the backup. Backed up
storage is completely encrypted. Backup is
incremental, including changed parts of large
files. Moved, renamed, and duplicate files will
not require additional storage. Several computers
can use the same storage for backup, automatically
sharing data. Both very large and very small files
are supported efficiently. Manent does not rely on
timestamps of the remote system to detect changes.
