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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:GbmEQpqiTEe/ufpx5fb6p1hCcq7cVKpZoonry+CGkXo.
Please contact your system administrator.
Add correct host key in /Users/zj/.ssh/known_hosts to get rid of this message.
Offending ECDSA key in /Users/zj/.ssh/known_hosts:38
Host key for 172.xx.xx.xx has changed and you have requested strict checking.
Host key verification failed.
lost connection