SSH连接时出现「WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!」解决办法

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用ssh來操控github,沒想到連線時,出現「WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!」,後面還有一大串英文,這時當然要向Google大神求助啦!收尋了一下,終於被小弟找到原因了~

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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
這裡依每台電腦而不同
Please contact your system administrator.
Add correct host key in /home/conbar/.ssh/known_hosts to get rid of this message.
Offending key in /home/conbar/.ssh/known_hosts:10
RSA host key for 這裡是伺服器端的IP或網址 has changed and you have requested strict checking.
Host key verification failed.

會出現這訊息是因為,第一次SSH連現時,會生成一個認證,儲存在客戶端(也就是用SSH連線其他電腦的那個,自己操作的那個)中的known_hosts,但是如果伺服器端重灌過了,認證資訊當然也會更改,伺服器端與客戶端不同時,就會跳出錯誤啦~因此,只要把電腦中的認證資訊刪除,連線時重新生成,就一切完美啦~要刪除很簡單,只要在客戶端輸入一個指令

ssh-keygen -R 伺服器端的IP或網址

接下來在連線一次,會出現

Are you sure you want to continue connecting (yes/no)?

輸入yes,就完成連線啦!同時,新的認證也生成了

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