Add correct host key in /Users/y/.ssh/known

使用ssh公钥出现下面问题解决办法
Add correct host key in /Users/y/.ssh/known_hosts to get rid of this message.
Offending ECDSA key in /Users/y/.ssh/known_hosts:9
ECDSA host key for 1.15.xxx.xxx has changed and you have requested strict checking.

使用ssh-keygen -R 服务器ip地址 更新我们的认证信息