title: Can't connect to Google Compute Instance VNC Server
body: <p>I followed this tutorial:</p>
  
  <blockquote>
    <p><a href="https://medium.com/google-cloud/linux-gui-on-the-google-cloud-platform-800719ab27c5" rel="nofollow noreferrer">https://medium.com/google-cloud/linux-gui-on-the-google-cloud-platform-800719ab27c5</a></p>
  </blockquote>
  
  <p>I opened all ports in the firewall.</p>
  
  <pre><code>vncserver
  nc localhost 5901
  RFB 003.008
  </code></pre>
  
  <p>Ran VNC Viewer (external-ip:5901)</p>
  
  <blockquote>
    <p>Timed out waiting for a response from the computer</p>
  </blockquote>