The LoadMaster is going to read the ICA file and take your internal IP address and rewrite it to your external FQDN using a specific secure destination port as outlined in the Secure Listeners section. This is achieved with the following updates to the default body modification rules as shown in the screenshot below.

In the body response rules, replace the internal IP addresses with your own Citrix VDI server IP addresses, as shown above. Ensure to retain port 1494 - only modify the IP address. In some environments the FQDN is returned. In this case, add the FQDN instead of the IP address while also retaining port 1494. If you are uncertain if the ICA file returns an FQDN or an IP address, complete the following steps:

  1. Internally, log in to StoreFront.
  2. When it asks to detect Receiver, cancel and select Already Installed.
  3. Click on an application and download the ICA file.

  4. Open using Notepad and note the Address= setting, as shown above.

Note: If port :1494 is not included, then remove it from each of the rules that are shown in the above two screenshots.

In the body modification rules in the LoadMaster UI, change EXTERNAL.DOMAIN.COM in the Replacement text field to be your external URL, as shown above. Again, ensure you do not change the port number as this is associated with your Secure Listener VDI Virtual Service.