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[[!meta title="Obnam - backup software"]]
[[!tag program]]
Obnam is starting over from scratch. See [blog
post](https://blog.liw.fi/posts/2020/10/16/obnam2_-_a_new_backup_system/).
It is currently not ready to be used, but do check in later.
This web site used to be about Obnam1, the original version that was
retired in 2017. All that content has been dropped now.
Obnam2 acceptance criteria are documented using [Subplot][], and are
on [docs.obnam.org](https://doc.obnam.org/).
**25-word summary of the new architcture:** client splits live data
into chunks, then compresses and encrypts them, and uploads new ones
to smart server via HTTP; server never sees cleartext.
[Subplot]: https://subplot.liw.fi/
Links
-----
* [Obnam blog posts](https://blog.liw.fi/tag/obnam/)
* Other backup software:
* [Borg](https://www.borgbackup.org/)
* [restic](https://restic.net/)
* [Cache Directory Tagging Standard](http://www.bford.info/cachedir/)
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