How To: Automated Encrypted Incremental Backups on Amazon S3 with Duplicity (OS X or Ubuntu)

Purpose: setup an automatic encrypted off-site backup system that utilizes Amazon S3 with incremental backups by duplicity on the Mac (Leopard) or Ubuntu. Currently, I do have my own on-site backup system in place (nightly backups via rsync to external hard drive), but I am wary that some day my house may explode and I’ll have nothing left. Enter my new friend: the encrypted off-site backup.

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