I have a server (lets assume its ip be a.b.c.d) which allows users to login via ssh. Now I want to change the physical machine keeping the ip same. So that the new machine is still accessed by a user like this
$ssh a.b.c.d
Problem is, every time one user tries to login, she gets the following ssh-key mismatch error.
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ @ 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 is 02:dc:c6:18:1b:34:b7:1d:fa:90:ab:e1:95:48:69:84. Please contact your system administrator. Add correct host key in /home/user/.ssh/known_hosts to get rid of this message. Offending key in /home/user/.ssh/known_hosts:37 RSA host key for alumni has changed and you have requested strict checking. Host key verification failed.
I know that user can delete line # 37 from the file ~/.ssh/known_hosts and next time she would get a yes/no prompt. What I want is that user should be kept unaware of this whole machine replacement thing and just get a prompt for password.
How to do that?
