title: expires max on Nginx
body: <p>I have a few questions about this directive:</p>
  
  <ul>
  <li>Is this what tells browser how often it should retrieve the file?</li>
  <li>What's the recommended setting hours/days/max for this on site css/image files?</li>
  <li>If I set this value to max, but then update some of the files on server, will user browsers not get the new files until they expire?</li>
  </ul>