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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 the RSA host key has just been changed.
The fingerprint for the RSA key sent by the remote host is
3f:c4:56:c7:cc:ae:c7:a6:c1:f3:ce:12:22:f8:35:83.
Please contact your system administrator.
Add correct host key in /home/shetty/.ssh/known_hosts to get rid of this message.
Offending key in /home/shetty/.ssh/known_hosts:11
RSA host key for mysharebook.cn has changed and you have requested strict checking.
Host key verification failed.
这是Linux重装或则openssh-server重装引起的，执行以下命令即可
ssh-keygen -R 192.168.87.36
192.168.87.36换成你要连的服务器就可以了。
