I have an application where I want to run Virtual Radar Server, under Linux, in an environment with no internet connection. This is a cinch, unless you want to retain your moving map background.
One solution is to use the, relatively new, Tile Server Cache Plugin
http://www.virtualradarserver.co.uk/Dow ... ervercache
An alternate solution is to run your own Open Street Maps Tile Server and then have VRS point to that Tile Server for getting its background maps.
After a little experimentation I was able to get this to work in my setup (a Proxmox Virtualization Server running Containers).
You can read my How To writeup for creating your own Open Street Maps Tile Server here
https://steamforge.net/wiki/index.php/H ... _Container
You can read my How To writeup on installing Virtual Radar Server (under Linux) and configuring it to use my local Open Street Maps Tile Server here
https://steamforge.net/wiki/index.php/H ... ffline_use
Enjoy!