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Proxy to TCP port with real IP (lemmy.world)

submitted 1 year ago by [email protected] to c/[email protected]

33 comments fedilink hide all child comments

Simple question, difficult solution. I can't work it out. I have a server at home with a site-to-site VPN to a server in the cloud. The server in the cloud has a public IP.

I want people to access server in the cloud and it should forward traffic through the VPN. I have tried this and it works. I've tried with nginx streams, frp and also HAProxy. They all work, but, in the server at home logs I can only see that people are connecting from the site-to-site VPN, not their actual source IP.

Is there any solution (program/Docker image) that will take a port, forward it to another host (or maybe another program listening on the host) that then modifies the traffic to contain the real source IP. The whole idea is that in the server logs I want to see people's real IP addresses, not the server in the cloud private VPN IP.

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[–] [email protected] 1 points 1 year ago (1 children)

I think you meant to reply to another comment. I never talked about setting up NAT rules, neither source, nor destination.

The proxy is responsible for responding with the correct IP address as it terminates the connection. Setting up NAT rules is not needed.

[–] [email protected] 1 points 1 year ago

Well, I was replying to OP through your reply since it was pretty much spot on. Except I was giving some idea of other ways to bring the original IP through a VPN using the linux ip stack features. Whatever way they go about it, it's a lot of effort for not that much upside though.