SSH登陆错误 WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!

3.解决方案：

$ ssh-keygen -R 192.168.10.20

known_hosts updated.

Original contents retained as known_hosts.old

Connection to 192.168.10.20 closed.

[root  ~]# ssh 192.168.10.88

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

@    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

b6:0c:41:43:60:79:eb:05:9e:c9:72:1d:a0:41:9a:50.

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:5

RSA host key for 192.168.10.88 has changed and you have requested strict checking.

Host key verification failed. 

1.在客户端执行下述指令即可 #mv /root/.ssh/known_hosts /tmp

2.当然也可以直接编辑known_hosts文件,把里面与所要连接IP(192.168.10.20)相关的内容删掉即可.

3.解决方案：

$ ssh-keygen -R 192.168.10.20

known_hosts updated.

Original contents retained as known_hosts.old