title: ssh remote host identification has changed
body: <p>I've reinstalled my server and I am getting these messages:</p>
  
  <pre><code>[user@hostname ~]$ ssh root@pong
  @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
  @    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
  6e:45:f9:a8:af:38:3d:a1:a5:c7:76:1d:02:f8:77:00.
  Please contact your system administrator.
  Add correct host key in /home/hostname /.ssh/known_hosts to get rid of this message.
  Offending RSA key in /var/lib/sss/pubconf/known_hosts:4
  RSA host key for pong has changed and you have requested strict checking.
  Host key verification failed.
  </code></pre>
  
  <p>I have tried various solutions that I found on the Internet. My <code>known_hosts</code> file (normally in <code>~/.ssh/known_hosts</code>) is in <code>/var/lib/sss/pubconf/known_hosts</code>. I've tried to edit it, but it remains in one state. I have installed <strong>ipa-client</strong> and have Fedora 19. How do I resolve this warning?</p>
  
  <p><strong>All the answers answered so far work only if you do not have Freeipa installed.</strong></p>
  
  <p>The right answer for freeipa in comments below from adrin is <a href="https://superuser.com/a/1071210/590292">here</a>.</p>