title: How to redirect different sub domain requests to different servers
body: <p>Under my domain, one of the subdomain must be directed to one server that hosts the relevant applications, and the rest must be directed to another server that hosts the relavant applications.</p>
  
  <p>So, any requests to the url <code>appa.example.com\*</code> must be directed to one server, and any requests to the url <code>appb.example.com\*</code> must be directed to another server. </p>
  
  <p>The issue now is how to configure the Apache configuration on both servers-- maybe using configuration like ProxyPass or ProxyPassReverse so that they all the incoming requests can be directed correctly at the correct server?  </p>
  
  <p><strong>Edit to make the question clearer.</strong></p>