We have the following infrastructure:
1. Public DNS - everydns.net
2. Smootwall Firewall
3. Windows 2003 Server 2003 Small Business Server (DNS, DHCP, etc etc)
4. Linux box (crm box)
5. Only 1 Public Address - 220.127.116.11 (for example)
The crm application is located in 192.168.100.11 and at this stage we configured in our firewall to forward all the request (only port 80) to go to this internal ip address - 192.168.100.11 (port 80 as well). In our public dns (everydns.net), we set the subdomain for instance : http://crm.TEST.com
and point to 18.104.22.168. This thing works OK and no problem.
But if I want to have another web application using port 80 still for instance: intranet and we only get 1 public IP address, how do I do this? We have Windows 2003 Server as our primary server (DNS etc) but don't know how to utilise this? Anyway ... is this possible? I think this is possible but maybe our firewall not be able to achive this? We can't see any options excepts forwading?!?!