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Barracuda CloudGen Firewall

How to Configure SSL VPN Native App for RDP

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The RDP native app creates an SSL tunnel from a random port on to the port 3389 on the destination Windows server or PC behind the firewall. The native RDP client is automatically launched and supplied with the connection information.


  • It is not possible to configure single sign-on for RDP native apps.

Create a Native App for RDP

  1. Go to VPN > SSL VPN.

  2. Click the Resources tab.

  3. In the Native Apps section, click Add Native App. The Add Native App window opens.

  4. Set Enable to Yes.

  5. (optional) Click Browse to upload a PNG file for the web portal. It must be less than 30 kB and no larger than 80x80 pixels.
  6. Enter the visible Name. This is the name used in the web portal for this application.

  7. In the Application Server Host field, enter the IP address of the server hosting the application.
  8. From the Application Protocol drop-down list, select RDP.
  9. (optional) To override the application’s standard port, enable Port Override and specify the Application TCP Port to be used instead of the application’s standard port.

  10. To enable tunneling of application data to the user’s localhost IP address, enter the Client Loopback TCP Port number for the application tunnel. To use a random port, enter 0 (default).

  11. (optional) To restrict access to the application by user group, remove the * entry in the Allowed User Groups list. Enter the user groups that can access the application, and click + after each entry. If no groups are added, the application will not be accessible by any users. You can use question marks (?) and asterisks (*) as wildcard characters.
  12. Click Save.

Launching an RDP Native App

  1. Start CudaLaunch on the desktop.
  2. In the Apps tab, click on the RDP app.

The native RDP client starts automatically and connects to the remote Windows server.

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