title: osx ssh/get wrong key?
body: <p>At some point I have created a key which I creatively named publickey.</p>
  
  <p>I don't know where that is now and I can't remember how I set git to use it.</p>
  
  <p>But when I try to use ssh I get:</p>
  
  <p><code>mymac:joyent aaa$ git push mysite</code></p>
  
  <p><code>Permission denied (publickey).</code></p>
  
  <p>I've followed the github guide to set up new keys:
  <a href="http://help.github.com/mac-set-up-git/" rel="nofollow">http://help.github.com/mac-set-up-git/</a></p>
  
  <p>I set my remote key information based on that, the new <code>id_rsa</code> key I made.</p>
  
  <p>But whenever I try to push I end up using the old public-key. Even commits locally are with the wrong user.</p>
  
  <p>How do I get rid of my old key and use my new one?</p>