Is it possible to access the internal portal using an external site as a proxy?

Question

VPN

Good afternoon.
There is an internal portal with an internal address of localhost:8080, which for a number of reasons cannot be made available on the Internet by simple port forwarding.
The hoster has an external site with Apache on board. These two sites are connected via OpenVPN into one network.
How (and is it possible at all?) to make available an internal site named intraweb.domen.ru?

Answer 1

On your external apache, set up a reverse proxy, where the target is a server accessible via OpenVPN.
The domain name must resolve to the ip of this public server.

Answer 2

As a VERY perverted option, it is to work with the site of the internal port on the server itself running VNC, and to implement access through noVNC. But it's more like a thrash frenzy.