This is pretty normal since I expose port 8080 but nothing to worry about.   Added a quick fix. You now have the ability to change the port easily but you have to do a (force update) of the container first. Then go to the template of Firefox and click on 'Add another Path, Port, Variable, Label or Device' then select 'Variable' and at key enter 'NOVNC_PORT' and as value your prefered port, in your example '8082' then click on Add and Apply.   Then go to the VPN con