Often, I need to upload files to the UVM appliance (e.g.: offline software upgrade), and to download files from the UVM appliance (e.g.: scan Package Support Files).
I RDP to the appliance, access a file share from the appliance, and copy the files to/from there. But that is not always possible or easy, depending on the customer.
Ideally, this file transferto/from the appliance would be through HTTPS, so no other TCP ports are needed.