Duplicity (software)

Duplicity is a software suite that provides encrypted, digitally signed, versioned, remote backup of files requiring little of the remote server.[2][3] Released under the terms of the GNU General Public License (GPL), Duplicity is free software.

Duplicity
Stable release
0.8.17[1] / 11 November 2020 (11 November 2020)
Repositorygitlab.com/duplicity/duplicity
Written inPython
Operating systemCross-platform (POSIX)
TypeBackup software
LicenseGNU General Public License
Websitenongnu.org/duplicity

Duplicity devises a scheme where the first archive is a complete (full) backup, and subsequent (incremental) backups only add differences from the latest full or incremental backup.[4] Chains consisting of a full backup and a series of incremental backups can be recovered to the point in time that any of the incremental steps were taken. If any of the incremental backups are missing, then the incremental backups following it cannot be reconstructed. It does this using GnuPG, librsync, tar, and rdiff.[2] To transmit data to the backup repository, it can use SSH/SCP/SFTP, local file access, rsync, FTP, Amazon S3,[5] Google Cloud Storage,[6] Rackspace Cloud Files,[7] and others.

Duplicity works best under Unix-like operating systems (such as Linux, BSD, and Mac OS X),[8] though it can be used with Windows under Cygwin or the Windows Subsystem for Linux. Currently duplicity supports deleted files, full Unix permissions, directories, and symbolic links, fifos, and device files, but not hard links.

Déjà Dup is a graphical user interface for Duplicity.[9]

See also

References
  1. https://launchpad.net/duplicity/0.8-series/0.8.17.
  2. Linux Journal: An Automated Reliable Backup Solution.
  3. https://fedoramagazine.org/taking-smart-backups-duplicity/
  4. Duplicity Website: Features.
  5. Bash Script: Incremental Encrypted Backups with Duplicity (Amazon S3).
  6. Change log of version 0.6.22.
  7. A fork of dt-s3-backup to use with Rackspace Cloud Files.
  8. Installing Duplicity on OS/X 10.5 (Leopard).
  9. Buzdar, Karim (27 May 2019). "How to Backup Files with Déjà Dup and Duplicity on Ubuntu 18.04 LTS". VITUX.


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