ssh连接到重置的服务器时报错REMOTE HOST IDENTIFICATION HAS CHANGED

解决方法:
1.输入命令: 
ssh-keygen -R 服务器端的ip地址
2.此时会出现以下提示:
Host 47.93.5.50 found: line 5 type ECDSA
/root/.ssh/known_hosts updated.
Original contents retained as /root/.ssh/known_hosts.old
不用管,直接进入第三步
3.重新ssh连接(需要输入yes确认)即可