I'm running the following command:rdiff-backup --remote-schema '%s' 'sudo /usr/bin/rdiff-backup --server \    --restrict-read-only /'::/etc /var/backups/hosts/derpIt's backing up /etc from localhost and putting it in /var/backups/hosts/derp just fine. I can scarcely imagine it working better, but I have no idea how to get this to run and pull the files from another host.  Maybe I'm just being silly and assuming that the remote part in --remote-schema actually means remote.
Need a little help with --remote-schema option for rdiff-backup
backup;rdiff backup