title: Github deploy keys: How do I authorize more than one repository for a single machine?
body: <p>I have a host, call it <code>rob</code>. I used ssh-keygen on <code>rob</code> to get a public key, which I gave to github in the add a new deploy key screen for repository <code>cheech</code>. Now I want to deploy <code>chong</code> on <code>rob</code> as well. But if I go to the add new deploy key screen for repository <code>chong</code> on github, and paste in the public key I generated on <code>rob</code> it says <code>key already in use</code>. I thought, if the key was in use, I could clone <code>chong</code> on <code>rob</code> but that says permission denied.</p>
  <p>So clearly this is more complicated than I thought and it involves having multiple keys or something. What should I do to clone <code>chong</code> on <code>rob</code>?</p>