Mac 终端 shell 公钥失效解决办法

阿里云服务器换了镜像，ip更改了。导致原来的ssh key失效了，提示报错如下：

KENFORFORLIN:~ kenforstar$ sudo ssh [email protected]
Password:
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@    WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!     @
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
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 the RSA host key has just been changed.
The fingerprint for the RSA key sent by the remote host is
ea:24:31:8d:03:07:36:db:2f:74:15:5d:58:67:a3:5b.
Please contact your system administrator.
Add correct host key in /var/root/.ssh/known_hosts to get rid of this message.
Offending key in /var/root/.ssh/known_hosts:1
RSA host key for 192.168.1.203 has changed and you have requested strict checking.
Host key verification failed.

解决方法：

ssh-keygen -R 192.168.1.203(你远程服务器的IP)