title: Unable to connect to django server at http://127.0.0.1:8000/
body: <p>I have installed django successfully in my ubuntu machine. i also run <code>python manage.py runsurver</code> successfully according to the tutorial 
  but when i am trying to access server from browser at <code>http://127.0.0.1:8000</code> i am getting error like this</p>
  
  <pre><code>Unable to connect
  
  Firefox can't establish a connection to the server at 127.0.0.1:8000.
  </code></pre>
  
  <p>it was supposed to give a welcome message</p>