title: difference between apache2, apache2-threaded-dev and apache-prefork-dev
body: <p>Whats the difference between different apache packages available.</p>
  
  <ol>
  <li>apache2</li>
  <li>apache2-threaded-dev</li>
  <li>apache2-prefork-dev</li>
  </ol>
  
  <p>will <strong>sudo apt-get install apache2</strong> will support both </p>
  
  <p>apache-prefork-dev</p>
  
  <p>apache2-threaded-dev</p>