假如出現這種情況：

@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@    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:EqIFQoWYDISyGnJggyqnk8888LeNn3tr1+QmBQaso0.
Please contact your system administrator.
Add correct host key in /Users/caolijian/.ssh/known_hosts to get rid of this message.
Offending ECDSA key in /Users/caolijian/.ssh/known_hosts:12
ECDSA host key for 192.168.1.112 has changed and you have requested strict checking.
Host key verification failed.
 

則是需要清理一下之前儲存的認證金鑰。

// 檢視
ssh-keygen -l -f ~/.ssh/known_hosts
// 清理192.168.1.112的認證rsa
ssh-keygen -R 192.168.1.112