title: ngrok: do I need have a server in my computer to run it?
body: <p>I downloaded ngrok and I put in my website folder (example: documents/website).</p>
  
  <p>I ran this command via command line: <code>./ngrok http 8888</code></p>
  
  <pre><code>ngrok by @inconshreveable                                       (Ctrl+C to quit)
  
  Tunnel Status                 online                                            
  Version                       2.0.19/2.0.19                                     
  Web Interface                 http://127.0.0.1:4040 
  Forwarding                    http://299954c1.ngrok.io -&gt; localhost:8888 
  </code></pre>
  
  <p>but I could not open the website and I got this:</p>
  
  <p><code>GET /favicon.ico               502 Bad Gateway<br>
  GET /                          502 Bad Gateway</code>  </p>
  
  <p>so I start see my ngrok just run if my MAMP its running like my apache and mysql on my localmachine tha is true?  </p>
  
  <p>so I turn on my MAMP on my mac and boom starts work perfect, my question is: my MAMP need to be on to my ngrok run?</p>