1.开启服务
2.ssh登录
3.编辑免密
vi /etc/ssh/keys-root/authorized_keys
ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAIEAtjuDGbLvhwT7biG4kffqLUPo30sKInxl5DuZt//xFY9poUR71HzuI89O8LsCfJbrfyzmHu+WsqljvxEZP6ap0FLqlbHIEPKmxM4V7HV2MeGkmbP0daAvui8dI+dEdTo3slNqnUfqbGNNuxf4wbNTr+xDlgb5mEVoDn5Gxx3cNFU= OpenSSH-rsa-import-101818
services.sh restart #生效
cat id_rsa_1024.pub >> /root/.ssh/authorized_keys