- Mostly after change the server or change ssh keys we get following message
$ ssh mitesh@example.com
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@ 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
4e:24:e3:a6:83:da:48:ae:11:f3:5d:95:69:03:d3:cb.
Please contact your system administrator.
Add correct host key in /Users/Mitesh/.ssh/known_hosts to get rid of this message.
Offending RSA key in /Users/Mitesh/.ssh/known_hosts:37
RSA host key for example.com has changed and you have requested strict checking.
Host key verification failed.How to Fix:
$ ssh-keygen -R example.com
# Host example.com found: line 37 type RSA
/Users/Mitesh/.ssh/known_hosts updated.
Original contents retained as /Users/Mitesh/.ssh/known_hosts.old