解决 WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED

今天在阿里云租了一台 ECS，配置和公钥之后在本地尝试登陆发现报如下错误：

```

@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@

@ 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 a host key has just been changed.

The fingerprint for the ECDSA key sent by the remote host is

SHA256:j+dVtJEPUR8/YQHMtQYHbJLIuvAMzfknM5lB+56dJoo.

Please contact your system administrator.

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

Offending ECDSA key in /Users/xxx/.ssh/known_hosts:66

ECDSA host key for 123.57.87.200 has changed and you have requested strict checking.

Host key verification failed.

```



发现其实是我之前配置过一次然后重置了 ECS 导致的，只要删掉 known_hosts 第 66 行的记录就正常了。