Access local resources using WAN domain

hursey013

Running Access Server 2.0.7 on Ubuntu 12.04 64-bit.

When I connect to the server I can access local web based resources running on various ports by using the gateway IP, for example: https://172.27.224.1:1234/

What I would like to know is whether or not it is possible to instead access those same resources (while connected to the VPN) using the WAN IP or WAN domain name, such as:

https://vps.mydomain.com:1234/

Thanks for the help.