This outline is inteneded for IT experts. Please understand that NETx Automation cannot provide support for setting up dynamic DNS or VPN infrastructure.
It is possible to setup a DNS server that provides the IP address for both main and backup server for the visualization machine hostname. When the browser asks for the IP address of the visualization machine it will receive both IP addresses, but only one of them runs a web server. If the browser is not able to establish a connection to the first address it will automatically connect to the other address.