ssh 远程登录 REMOTE HOST IDENTIFICATION HAS CHANGED 问题
ssh 远程登录 REMOTE HOST IDENTIFICATION HAS CHANGED 问题
问题：
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@ WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED! @
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IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY!
Someone could be eavesdropping on you right now (man-in-the-middle attack)!
It is also possible that a host key has just been changed.
The fingerprint for the RSA key sent by the remote host is
da:f7:3e:ba:f7:00:e6:44:76:f2:58:6e:48:******.
Please contact your system administrator.
Add correct host key in /home/name/.ssh/known_hosts to get rid of this message.
Offending RSA key in /home/name/.ssh/known_hosts:17
RSA host key for xx.xx.xx.xx has changed and you have requested strict checking.
Host key verification failed.
原因：
由于服务器重新安装系统了，所以会出现以上错误。
解决方式：
ssh-keygen -R 服务器端的ip地址
会出现以下提示
# Host [服务器IP] found: line 17 type RSA
/home/name/.ssh/known_hosts updated.
Original contents retained as /home/name/.ssh/known_hosts.old
重新连接服务器即可
那么 ssh-keygen 命令是什么：
该命令的作用是：生成 SSH 秘钥对
