I've created a intranet website which I would like to limit to only certain computers spread throughout the city, my first thought was creating a vpn server on the web server and authorize the client computers with certificate and then limit the site only to lan. I used SoftEther VPN to setup the server, but a problem I immediately encountered was the slow bandwidth. Now to my actual question is it possible to enable the clients to browse the internet through their own connection and at the same time be able to access the website on the vpn?
Edit: I'm also open for other solutions that may be less introsive.