I am attempting to use Remote Desktop Web Access Server (RDweb) on an Windows 2008 R2 server to mimic the functionality of SBS's Remote Web workplace. My goal is to allow users to access remote desktops behind the corporate firewall without needing VPN.
I have installed the Remote Desktop Web Access role and have the webapp working. Users can connect to a remote desktop session when behind the corporate firewall. However from outside you are able to access the site but unable to make an RDP connection. With SBS I remember needing to open port 4125. However I find no similar documentation for Remote Desktop Web access server.
How can I enable connections via the internet?