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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:b3p+xAbiVc1d15uGpDerwfFOnl92uiQMLJKb2oaJAPw.
Please contact your system administrator.
Add correct host key in C:\\Users\\***/.ssh/known_hosts to get rid of this message.
Offending ECDSA key in C:\\Users\\***/.ssh/known_hosts:1
ECDSA host key for 121.89.195.81 has changed and you have requested strict checking.
Host key verification failed.
lost connection
解决方案：
ssh 链接远程服务器出现错误：
原因：第一次ssh链接的时候会生成一个认证凭据，存储在客户端中的known_hosts，如果服务器地址重置or重新安装了，就会产生这个问题，巴拉巴拉。。。
解决：
ssh-keygen -R 服务器地址
然后重新链接
