title: "ERROR: [Errno 111] Connection refused" when i try to use nova image-list
body: <p>I am using debian 7 with openstack havana all in one node,keystone work perfectly,glace also work ,but after installing nova when i try </p>
  
  <pre><code> # nova image-list
  </code></pre>
  
  <p>it responds</p>
  
  <pre><code>ERROR: [Errno 111] Connection refused
  </code></pre>
  
  <p>i would really appreciate if someone can help me to find out the cause of this error .</p>