title: selenium 2 unable to connect to host
body: <p>Im working on the facebook php webdriver,im working on Ubuntu with selenium standalone server in the same directory as the webdriver library .</p>
  
  <p>Im connecting to the linux using local ip address as 192.168.x.x ,When i execute the below code</p>
  
  <pre><code>&lt;?
  require '__init__.php';
  $wd_host = 'http://localhost:4444/wd/hub'; 
  
  $web_driver = new WebDriver($wd_host);
  
  $session = $web_driver-&gt;session('firefox'); 
  
  ?&gt;
  </code></pre>
  
  <p>i constantly get this error
  "Uncaught exception 'UnhandledWebDriverError' with message 'Unable to connect to host 127.0.0.1 on port 7055 after 45000 ms. Firefox console output: Error: no display specified "</p>
  
  <p>Someone can point out where im going wrong?</p>
  
  <p>Thanks</p>