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Routing local requests directly to server instead of cloudflare tunnel (feddit.de)

submitted 1 year ago* (last edited 1 year ago) by [email protected] to c/[email protected]

16 comments fedilink hide all child comments

Hey everyone, I wanted to ask for some help regarding my DNS setup and for routing requests to my selfhosted services.

Currently I use Pi-Hole as a DNS server with my routers default DNS server as the upstream server. This allowed me to define local DNS entries using Pi-hole and route my requests to these domains directly to my local services. For example I bought a domain a while ago and in preparation for setting it up, I had it entered as a local DNS entry pointing directly to my servers IP address.

Earlier today I finally got around to setting up a cloudflare tunnel to expose one of my services to the outside world using the domain I bought. Ever since I did that, all requests to that domain seem to exit my home network, go through cloudflares network and then return through the tunnel, even though I have a local DNS entry for that domain name.

What I would prefer is for the request to be routed directly to my server instead, since I am in the same network already. Since my DNS server is the Pi-Hole, I figured this should happen automatically.

Is there an issue with my Pi-Hole setup? If there is any information missing I'll be happy to provide it. I wasn't sure what information I could safely post here.

Solution

I think I managed to fix the problem. After enabling the option Never forward reverse lookups for private IP ranges in Pi-Hole and clearing my DNS cache again, nslookup only returns local IP addresses instead of the IPv6 address of two cloudflare servers.

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[–] [email protected] 3 points 1 year ago (1 children)

even though I have a local DNS entry for that domain name.

Easy to diagnose, what does nslookup return for the hostname?

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

It returned the local IPv4 address of the server and two IPv6 addresses belonging apparently belonging to a cloudflare server in california.

I think I managed to fix the issue though. I have updated my post to include my solution

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

Ah that makes sense, if your server has an IPv6 address you could add another A record in Pihole for that. But it sounds like clearing the cache and stuff solved it.