Host key verification failed.

問題：

```

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

@    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:qsKeZfZAS3BCLZw6OT1a6I1U9MzfZpEfCZDmY63+VQ8.

Please contact your system administrator.

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

Offending ECDSA key in /Users/wayne/.ssh/known_hosts:10

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

Host key verification failed.

```

試了：


列出現在的

ssh-add -l


ssh-add ~/.ssh/id_rsa


ssh-copy-id username@remote_host

~/.ssh/authorized_keys

最後：

把 xxx.xxx.xxx.xxx 的 key 從 .ssh/known_hosts 刪掉


http://smelon.blog.51cto.com/877877/245405