windows

生成秘钥文件

ssh-keygen -t rsa

将公钥传送到服务器

scp C:\Users\xx/.ssh/id_rsa.pub  xx@xx:/home/ruoyi/id_rsa.pub

linux 使用ssh-copy-id -i ~/.ssh/id_rsa.pub user@host

如果禁用root登录，先开启

vim /etc/ssh/sshd_config

PermitRootLogin yes

/bin/systemctl restart sshd.service

如果StrictModes yes

chmod 755 ~

chmod 700 ~/.ssh

chmod 600 ~/.ssh/authorized_keys

密钥添加到文件中

cat /home/ruoyi/id_rsa.pub >> /root/.ssh/authorized_keys

ssh root@xx

 复制权限文件到用户下
 cp /root/.ssh/authorized_keys /home/ruoyi/.ssh/authorized_keys 
 禁用root用户
 vim /etc/ssh/sshd_config

 systemctl restart sshd

 ssh xx@xx

mac

 ssh-keygen -t rsa
 scp /Users/fanshaorong/.ssh/id_rsa.pub  ruoyi@xx:/home/ruoyi/id_rsa.pub
 cat /home/ruoyi/id_rsa.pub >> /root/.ssh/authorized_keys
 ssh root@xx