Borg is
deduplicating backup software for various
Unix-like operating systems. Originally it called Attic.
History
Attic development began in 2010 and was accepted to Debian in August 2013. Attic is available from
pip and notably part of Debian, Ubuntu, Arch and Slackware.
In 2015, Attic was forked as "Borg" to support a "more open, faster paced development", according to its developers. Many issues in Attic have been fixed in this fork, but backward compatibility with the original program has been lost (a non-reversible upgrade process exists). Borg 1.0.0 was released on 5 March 2016, Borg 1.1.0 was released on 7 October 2017.
As of 2018, Borg is under active development by many contributors, while Attic is not being developed.Stable releases are available from various Linux distributions such as
Debian
Debian (), also known as Debian GNU/Linux, is a Linux distribution composed of free and open-source software, developed by the community-supported Debian Project, which was established by Ian Murdock on August 16, 1993. The first version of D ...
,
Ubuntu,
Fedora
A fedora () is a hat with a soft brim and indented crown.Kilgour, Ruth Edwards (1958). ''A Pageant of Hats Ancient and Modern''. R. M. McBride Company. It is typically creased lengthwise down the crown and "pinched" near the front on both sides ...
,
OpenSUSE and others, from the ports collection of various BSD derivatives and from brew for macOS. The project provides pre-built binaries for Linux, FreeBSD and macOS.
As of April 2021, the attic website was removed.
Design
Borg offers efficient, deduplicated, compressed and (optionally) encrypted and authenticated backups.
A backup includes metadata like owner/group, permissions, POSIX
ACLs and
Extended file attributes.
It handles special files also - like hardlinks, symlinks, devices files, etc. Internally it represents the files in an archive as a stream of metadata, similar to
tar and unlike tools such as
git. The
Borg project has created extensive documentation of the internal workings.
It uses a
rolling hash to implement global data deduplication.
Compression defaults to
zlib, encryption is
AES
AES may refer to:
Businesses and organizations Companies
* AES Corporation, an American electricity company
* AES Data, former owner of Daisy Systems Holland
* AES Eletropaulo, a former Brazilian electricity company
* AES Andes, formerly AES Gener ...
(via
OpenSSL
OpenSSL is a software library for applications that provide secure communications over computer networks against eavesdropping or need to identify the party at the other end. It is widely used by Internet servers, including the majority of HTT ...
) authenticated by a
HMAC
In cryptography, an HMAC (sometimes expanded as either keyed-hash message authentication code or hash-based message authentication code) is a specific type of message authentication code (MAC) involving a cryptographic hash function and a secret ...
.
See also
*
List of backup software
*
Comparison of backup software
References
External links
*
BorgBackup
{{Backup software
2010 software
Backup software for Linux
Free backup software
Python (programming language) software
Software using the BSD license