公開鍵生成(rootで # ssh-keygen -t rsa -N "" (.ssh/id_rsa.pubをコピー先の.ssh/authorized_keysにコピー) 手動で(コピー先dirは作っとく # rsync -avz --delete -e "ssh -p 22" /home/ username@server:/home/backup (-a:archive -v:verbose -z:compress …