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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
SHA256:0B/QXLC9aydJvKDrMZJohXQER7CcS/Gx1IXsDniFxuY.
Please contact your system administrator.
Add correct host key in /home/archie/.ssh/known_hosts to get rid of this message.
Offending ECDSA key in /home/archie/.ssh/known_hosts:1
  remove with:
  ssh-keygen -f "/home/archie/.ssh/known_hosts" -R "182.61.30.126"
ECDSA host key for 182.61.30.126 has changed and you have requested strict checking.
Host key verification failed.

问题出现原因：

本地保留的密钥与远程主机不匹配，导致无法认证成功，一般情况是因为，远程主机的系统更换。

解决方法:

sudo rm -rf ~/.ssh

删除对应文件夹下的保存的.ssh密钥即可。