阿里云主机禁用root SSH并配置普通用户pem登录

root ssh登录git gpasswd -a digital wheel //把digital加入wheel组 visudo //把（%wheel ALL=(ALL) NOPASSWD: ALL）注释去掉并保存 mkdir /home/digital/.ssh cp /root/.ssh/authorized_keys /home/digital/.ssh/ cd /home/digital/

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