@ WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED! @
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY!

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:My488LpWTj3Fe4L7IfHhelcPHQrVZDBey+B1DWeNGkU.

Please contact your system administrator.

Add correct host key in C:\\Users\\dasa7/.ssh/known_hosts to get rid of this message.

Offending ECDSA key in C:\\Users\\dasa57/.ssh/known_hosts:4

ECDSA host key for 47.95.144.21221 hanged and you have requested strict checking.

Host key verification failed.

问题原因：

一般发生在重装系统上，本地最早已经远程连接过服务器，生成了本地远程连接信息，当重装系统后，
本地密钥信息还在，但远程已经重装了系统。

解决办法:

ssh-keygen -R 加上你要连接的远程的ip

意思是刷新你本地的密钥信息。

第二种解决办法，参考：
https://blog.csdn.net/wd2014610/article/details/79945424

第一种解决办法来源于：
https://www.cnblogs.com/500m/p/11811735.html