title: Obfuscating server headers
body: <p>I have a WSGI application running in PythonPaste. I've noticed that the  default 'Server' header leaks a fair amount of information ("Server: PasteWSGIServer/0.5 Python/2.6"). </p>
  
  <p>My knee jerk reaction is to change it...but I'm curious what others think.</p>
  
  <p>Is there any utility in the server header, or benefit in removing it? Should I feel uncomfortable about giving away information on my infrastructure?</p>
  
  <p>Thanks</p>