duplicity: Encrypted bandwidth-efficient backup using the rsync algorithm

I’ve recently grown paranoid about my data, and I keep using rsync to keep backup of various files a bit everywhere. It works great for most of the things I use, but it lacks fundamental things you would want from a real backup system, such as the possibility to come back to an earlier state.

So I went looking for something else, and I found that duplicity shows somehow the same syntax and ease of use than rsync: there is no need to write a configuration file, and it uses a very similar way to specify sources and targets. It features among others:

• incremental backup
• uses librsync to backup only what is necessary
• distant scp-like access
• no need to install duplicity on remote machine, just a scp server should do
• GPG encryption and signature to protect data saved on a not-so-trusted host

To use it, just run something like:

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