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In setting up a backup system using rsync and ssh, we need to find a balance between system resources, speed and security. Once upon a time, Openssh allowed ‘none’ to be selected as an encryption cypher, but that did not last very long. For many years arcfour was the fastest cypher, and so useful when […]

ZFS is much touted for its stupendous performance and resiliency, but few utilise it well in doing backups. The secret to ZFS for backups is in its snapshot system and the ability to send the differences between snapshots to a remote system. The process is really very simple The remote server now has an up