[Mac] WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!

有時候ssh到別台主機時，偶而會發生以下錯誤訊息。

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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

b0:b3:7c:bd:b3:5b:6a:44:aa:38:36:7f:05:6d:88:25.

Please contact your system administrator.

Add correct host key in /Users/flowercatswets/.ssh/known_hosts to get rid of this message.

Offending RSA key in /Users/flowercatswets/.ssh/known_hosts:3

RSA host key for 192.168.0.101 has changed and you have requested strict checking.

Host key verification failed.

先別緊張，會出現這訊息是因為，第一次SSH連現時，會生成一個認證，儲存在現在用的這台電腦中的known_hosts，但是如果伺服器端重灌過了（或是這個IP換人用了），認證資訊當然不符合，就會跳出錯誤啦～因此，只要把電腦中的認證資訊刪除，再重新產生一次即可，心法如下

ssh-keygen -R 伺服器端的IP或網址

例如

ssh-keygen -R 192.168.0.101

 











之後再重新連線一次即可。