Linux免密登陆

客户端生成公私钥

ssh-keygen

上传公钥到服务器

ssh-copy-id -i ~/.ssh/id_rsa.pub root@192.168.111.111

或

# 这里scp会覆盖....需要拷贝追加
scp -p ~/.ssh/id_rsa.pub root@192.168.111.111:/root/.ssh/authorized_keys

authorized_keys 权限需为600

chmod 600 authorized_keys

免密登录

ssh root@192.168.111.111