daddario@debianx:~$ ssh -l root 192.168.1.2
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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
f4:bc:a2:3a:4f:0f:02:a1:1f:74:ac:d7:8b:f5:a6:5c.
Please contact your system administrator.
Add correct host key in /home/daddario/.ssh/known_hosts to get rid of this message.
Offending key in /home/daddario/.ssh/known_hosts:2
RSA host key for 192.168.1.2 has changed and you have requested strict checking.
Host key verification failed.
daddario@debianx:~$