WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED! 解决办法

WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED! 解决办法

 

1、跨服务器拷贝遇到的问题：

[root@datanade48 json mark]# scp -r jiakuan_201805 root@172.31.242.21:/data1/json

@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@

@    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

ca:f3:fa:94:3f:49:e4:1b:58:2d:b1:61:27:1e:a7:88.

Please contact your system administrator.

Add correct host key in /root/.ssh/known_hosts to get rid of this message.

Offending key in /root/.ssh/known_hosts:15

RSA host key for 172.31.242.21 has changed and you have requested strict checking.

Host key verification failed.

lost connection

 

解决办法：

 

[root@datanode48 ~]# cat /root/.ssh/known_hosts

 

删除或注释掉172.31.242.27服务器的信息，保存操作，退出即可