I had an OpenVPN server installed, confgured → user can access work network from their home/other places etc. → everything is working,
but i have a question: is there a posibility to access their machines i.e. VNC service (which they have installed) ?
If the Nethserver isn’t the gateway of the lan, in your gateway try to configure a route that reroute calls to IPs/Net of OpenVPN clients to the ip of the nethserver.