1.使用ssh-keygen生成密匙
$ ssh-keygen Enter passphrase (empty for no passphrase): Enter same passphrase again:
2.使用ssh-copy-id将公匙拷贝至远程主机
ssh-copy-id -i ~/.ssh/id_rsa.pub IP(192.168.0.1)
3.通过ssh来执行rsync
ssh 192.168.0.1 rsync -avzut /var/www/ root@192.168.0.1:/home/wwww