WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!

服务器重做系统后，Mac上的Iterm SSH登录报错，信息如下：

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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 ECDSA key sent by the remote host is

SHA256:eYAH1cXK9XQaM6L3g4wSrA0faZXIsSkVke0MOGH+yBs.

Please contact your system administrator.

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

Offending ECDSA key in /Users/chao/.ssh/known_hosts:11

ECDSA host key for xx.xx.54.213 has changed and you have requested strict checking.

Host key verification failed.

 

发现 

Offending ECDSA key in /Users/chao/.ssh/known_hosts:11

ECDSA host key for xx.xx.54.213 has changed and you have requested strict checking.

这是因为key发生了变化，我们把/Users/chao/.ssh/known_hosts的54.213删掉，再次重新连接就好了