[010698407@himson 010698407]$ ssh 172.19.80.139
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@    WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!     @
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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
06:b2:20:ee:ed:83:14:ff:f8:f5:c1:e1:97:af:d3:e6.
Please contact your system administrator.
Add correct host key in /home/010698407/.ssh/known_hosts to get rid of this message.
Offending key in /home/010698407/.ssh/known_hosts:1
RSA host key for 172.19.80.139 has changed and you have requested strict checking.
Host key verification failed.
[010698407@himson 010698407]$