错误RSA host key for [ip address] has changed and you have requested strict checking.

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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 RSA key sent by the remote host is
SHA256:v6F5Qchy3Mk6z4syY5a3eSxoQB+0ze1++LA4rQVkRSU.
Please contact your system administrator.
Add correct host key in /Users/zhangjin/.ssh/known_hosts to get rid of this message.
Offending RSA key in /Users/zhangjin/.ssh/known_hosts:18
RSA host key for 115.28.141.148 has changed and you have requested strict checking.
Host key verification failed.

只需要删除本地机ssh缓存信息，即可恢复。 在本地机输入一下命令行： ssh-keygen -R [服务器ip address]

得到以下结果：

/Users/zhangjin/.ssh/known_hosts updated.
Original contents retained as /Users/zhangjin/.ssh/known_hosts.old

再次连接输入密码成功

The authenticity of host '*.*.*.*' can't be established.
ECDSA key fingerprint is SHA256:+K9vTvv/cVCgsA03tj8IH3Az9nSnaSMkzxCpfsc2l9A.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added '*.*.*.*' (ECDSA) to the list of known hosts.
root@115.28.141.148's password: