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I am backing up a cluster of machines (clients) to a backup server (server). Whats the best way to pull data from each machine in the cluster?

April 26, 2017backing backup best clients cluster Data machines pull server

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I am backing up a cluster of machines (clients) to a backup server (server). Whats the best way to pull data from each machine in the cluster?

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• A: Run sshd on each machine in the cluster. Create a passwordless key pair on the server, and give the public key to each of the client machines, restricted to the rsync command only (with PermitRootLogin set to forced-commands-only in the sshd_config file).