You will need to create the following items to allow users to remotely connect to there computers using Microsoft Terminal Services or Remote Desktop Protocol.

To enter the computer IP address

1. Open the appliance user interface.
2. In the left pane, click Firewall.
3. In the right pane click Computers tab.
4. Computer - Enter the host name, the MAC address, check the application server box and enter the machines internal IP address.

To add the service

1. In the left pane click Firewall.
2. In the right pane, click Services tab
3. Type a new name for the service.
4. Set the Listen on port to 3389 to 3389, and the redirect to port also to 3389 to 3389

To create the Inbound Rule to direct traffic to the computer

1. In the left pane, click Firewall.
2. In the right pane, click Inbound Rules tab.
3. Under the Rule definition, enter a name for the rule.
4. Check enable rule.
5. Select the computer from the application server drop-down.
6. Select the new service created in the previous step.

If you would like to setup multiple computers, you can change the listen on port to 3390, 3391, etc and then redirect that to 3389 to 3389. This will redirect traffic coming in to the firewall on 3390 (or other ports entered) and redirect that to port 3389 on that computer.