[root@ok network-scripts]# ssh 192.168.1.10@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@    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 is8b:e7:b8:6b:eb:a8:2d:06:7b:f1:75:c9:b5:48:a9:06.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:19RSA host key for 192.168.1.10 has changed and you have requested strict checking.Host key verification failed.

 

[root@ok network-scripts]# mv ~/.ssh/known_hosts ~/.ssh/known_hosts.bak[root@ok network-scripts]# ssh 192.168.1.10The authenticity of host '192.168.1.10 (192.168.1.10)' can't be established.RSA key fingerprint is 8b:e7:b8:6b:eb:a8:2d:06:7b:f1:75:c9:b5:48:a9:06.Are you sure you want to continue connecting (yes/no)?