title: unable to connect to localhost:8080 with Vagrant and Ubuntu
body: <p>I tried to install Vagrant and Ubuntu on mac os 10.9.4 to make a local development server following this great instructions by @fideloper: <a href="http://serversforhackers.com/editions/2014/02/25/vagrant-apache/" rel="noreferrer">Vagrant and Apache</a>. </p>
  
  <p>the Vagrantfile contains: </p>
  
  <pre><code>config.vm.box = "ubuntu/trusty64"
  config.vm.network "forwarded_port", guest: 80, host: 8080
  config.vm.synced_folder ".", "/var/www/html"
  </code></pre>
  
  <p>evreything worked fine during the process: Vagrant and virtualbox are installed, Apache is installed on the guest. </p>
  
  <p>from <a href="https://stackoverflow.com/questions/5984217/vagrants-port-forwarding-not-working/5992293#5992293">this answer</a>, i tried: </p>
  
  <ul>
  <li>on the guest, <code>curl 'http://localhost:80'</code> returns an html with a file listing  </li>
  <li>on the host, <code>curl -v 'http://localhost:8080'</code> returns the
  same page.</li>
  </ul>
  
  <p>but the browser says <code>this webpage is not available</code> at localhost:8080. </p>
  
  <p>why the browser is not displaying localhost:8080? </p>