title: Don't have a2ensite on my ubuntu server
body: <p>I have an ubuntu server running nginx.  I just tried to enable a vhost config and discovered that i don't have the a2ensite command.  I searched with find and whereis and it looks like i just don't have it.  I realise i could hand-roll my own symbolic link from sites-enabled to sites-available but i'd rather use a2ensite/a2dissite to manage this.  How can i install it?</p>
  
  <p>thanks -max</p>