@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ @ 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 a host key has just been changed. The fingerprint for the RSA key sent by the remote host is ce:7e:93:6f:c9:20:88:20:26:28:bf:39:36:f9:fe:a7. Please contact your system administrator. Add correct host key in /home/netbook/.ssh/known_hosts to get rid of this message. Offending RSA key in /home/netbook/.ssh/known_hosts:12 RSA host key for [192.168.0.21]:22 has changed and you have requested strict checking. Host key verification failed.