ssh 免密码 登录

A、ssh客户端
B、ssh服务端

A：ssh-keygen -t rsa
回车两次，生成文件默认保存：~/.ssh/id_rsa, id_rsa.pub
将id_rsa.pub 复制到 B： ~/.ssh/authorized_keys
chmod -R 600 ~/.ssh

ssh [e-mail] -p 22

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