title: How to protect a website from DoS attacks
body: <p>What is the best methods for protecting a site form DoS attack. Any idea how popular sites/services handles this issue?. </p>
  
  <p>what are the tools/services in application, operating system, networking, hosting levels?.</p>
  
  <p>it would be nice if some one could share their real experience they deal with.</p>
  
  <p>Thanks</p>