title: Gitlab: Can't clone repo over SSH
body: <p>I've installed Gitlab version 5.1 on my server (Centos 6.4 64bit). After a lot of hiccups, I now can clone, pull and push... but only over HTTP. Anytime I try an SSH clone, this error occurs:</p>
  
  <pre><code>$ git clone git@git.server:my-project.git
  Cloning into 'my-project'...
  FATAL: R any my-project my-user DENIED by fallthru
  (or you mis-spelled the reponame)
  fatal: Could not read from remote repository.
  
  Please make sure you have the correct access rights
  and the repository exists.
  </code></pre>
  
  <p>This <code>DENIED by fallthru</code> error apparently is no stranger to Google and Stackoverflow, but most of them is Gitolite-related, which is not the case here, as Gitlab has dropped Gitolite as per v5. So what am I missing here? This is my first time working with Gitlab, so please be gentle.</p>