REMOTE HOST IDENTIFICATION HAS CHANGED!

RSA host key for 172.28.13.222 has changed and you have requested strict checking.
Host key verification failed.
lost connection

此错误是由于Linux重装或则openssh-server重装引起的，执行以下命令即可
ssh-keygen -RIP 
把IP换成你要连的服务器地址即可。