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How to Use Local IP for Services when at Home? (mander.xyz)

submitted 5 months ago* (last edited 5 months ago) by mrh@mander.xyz to c/selfhosted@lemmy.world

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So I have some services and wireguard running locally on a "home" network. I also have wireguard, a DNS resolver, and a reverse proxy set up on a remote server. Since I don't want to expose the home IP to the public, to access my services I connect to the VPN on the remote, which then forwards my request home. But this means that when I'm at home, connecting to my local services requires going out to the remote. Is there some way to have the traffic go over the switch when at home, but go over wireguard when away, without having to manually switch the VPN on/off?

I could move the DNS resolver (which handles the internal names for the services) from the remote to the home server. But then similarly every DNS request will need to go through both the remote and home servers, doubling the hops. I'd like to use my own DNS server at all times though, both at and away from home. Which tradeoff seems better?

edit: thanks for all the suggestions, I'll look into some of these solutions and see what works best

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[–] mrh@mander.xyz 3 points 5 months ago (1 children)

Yes that would work, but it feels a bit cumbersome to have 2 fqdns per service, which I would have to switch between using depending on on whether I'm local or not.

[–] plateee@piefed.social 2 points 5 months ago

Yeah, in that case, I'd probably split my DNS duties. I started with internal resolution by having Pihole do hard coded DNS entries for internal systems, but my current setup seems to be much more resilient.

I have two PowerDNS servers (main and replica) with recursors to Open DNS internet servers and resolvers for my lab network. It plays very nicely with Terraform or (crucially lately) Kubernetes.