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I'm self-hosting a VPN service (OpenVPN) on a remote server that has a static IP address. I got my local devices to connect to it with no problem and I'm able to access the apps I host locally from the private IP address assigned to my local devices by the VPN service with no issue.

What I want to do is the following:

I want to serve a web app (let's say on port 8080) on a local device that I have at home and have that web app accessible to anyone on the internet from the VPN's public IP address (i.e., from http(s)://$VPN_PUBLIC_IP_ADDRESS:8080).

I opened port 80, 443 and 8080 on the remote VPN server (using ufw), but I was still not able to access the website using the public IP address of the remote VPN server. How can I get this to work?

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    Seems the issue is still in the firewall config. I suggest to check with portchecker.co if 8080 is really available from Internet. Use pubic IP of VPN server there.
    – Hardoman
    Commented Dec 15, 2021 at 18:58
  • You need to add a port forwarding rule
    – mashuptwice
    Commented Dec 16, 2021 at 5:44
  • @mashuptwice I have already done that, it didn't fix it
    – Feline
    Commented Dec 23, 2021 at 0:32

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Simply opening the port is not enough, you also need to tell your VPN server where to route the packets.

DNAT should solve this easily.

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  • that didnt work
    – Feline
    Commented Dec 23, 2021 at 0:32

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