title: Make a subdomain to point on a specific port
body: <p>I already checked some topic about it but didn't find any solutions (if it's possible). I have a domain that points on my server on the port 80, but, I have another important webservice running on the port 8080.
  I want to know if it's possible to create a subdomain like (admin.example.com) which points on port 8080.</p>
  
  <p>Thanks</p>