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→Public key on the server
After that you can login without a password. But remember - keys are per user, not per machine. So this will only work with one user on the client and one user on the server (the two users involved in running the command above).
=== Your task ===
For this lab you have to set up password-less login for the root user on the host to the root user on each of the VMs.
== rsync & cron ==