當在使用SSH連線到別台主機時若出現以下錯誤可參考以下解決方式。
錯誤訊息：
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| [[email protected] ~]$ ssh [email protected]
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@ WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED! @
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
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
48:0e:28:11:d6:81:68:16:04:5f:db:49:02:la:12:4e.
Please contact your system administrator.
Add correct host key in /root/.ssh/known_hosts to get rid of this message.
Offending key in /root/.ssh/known_hosts:12
RSA host key for 192.168.50.6 has changed and you have requested strict checking.
Host key verification failed.
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解決方法（擇一即可）：
1. 把有問題的host key刪掉#
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| vim /neil/.ssh/known_hosts
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2. 刪除known_hosts#
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| rm -rf /neil/.ssh/known_hosts
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3. 重新產生key#
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| ssh-keygen -R 192.168.50.6
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