windows免密ssh登录linux

windows执行ssh-keygen生成公钥 

ssh-keygen

 一路回车即可

拷贝windows公钥到linux服务器

# windows 拷贝下面文件的内容
C:\Users\.ssh\id_rsa.pub

# linux 复制到 /root/.ssh/authorized_keys
vim authorized_keys

linux更新ssh

# linux环境执行命令更新ssh
sudo systemctl restart sshd