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Remote Desktop Web Access Server connection over internet

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?
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1 Solution
What about port 443 and 3389?
Port 3389 probably. I'll try to find some evidence. Can you check your fiewall logs to see what is being blocked?
From :http://social.technet.microsoft.com/Forums/en/winserverTS/thread/3088d374-74d0-4c4c-9512-ebd317cf9288

Client PC Internet Explorer communicates with RDWeb via port 443 --> user clicks RemoteApp icon, which launches the RD Client and instructs it to connect to RDG via port 443 --> RDG server opens a connection to the RDSH via port 3389, acts as middle-man between client PC and RDSH server

To summarize key points, the RD Gateway server must be resolvable as well as reachable from the Internet via port 443, whereas the Remote Desktop Session Host server name must be resolvable/reachable via port 3389 from the RDG server.  Each role should have a ssl certificate that matches the name configured for it in RemoteApp Manager settings.

IntuvoAuthor Commented:
I was able to get this working. TrakcHappy was correct you only needs port 443 open. I installed the Remote Desktop Gateway service, and configured a proper ssl certificate. The only hard part to find was how to configure the RDWeb portal to use the remote desktop gateway. Those instructions are found here:


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