ssh 登录远程服务器报错 Host key verificat

使用ssh登录远程服务器时有时会遇到如下错误:

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:XXXXX.
Please contact your system administrator.
Add correct host key in /Users/perry/.ssh/known_hosts to get rid of this message.
Offending ECDSA key in /Users/perry/.ssh/known_hosts:19
ECDSA host key for XXXXIP地址 has changed and you have requested strict checking.
Host key verification failed.

解决办法
打开终端输入：

vim .ssh/known_hosts

删除刚才出错的那行，保存，退出重新登录。