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Issue with Traefik SSL and PiHole (lemmy.world)

submitted 9 months ago by WASTECH@lemmy.world to c/selfhosted@lemmy.world

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I set up SSL certificates for my internal services behind Traefik, but I was having some issues obtaining the certificates. I ended up having to add this line in my Docker compose file to bypass PiHole which is controlling the internal hostnames for my domain:

- --certificatesresolvers.letsencrypt.acme.dnschallenge.resolvers=1.1.1.1:53,1.0.0.1:53

After adding that, I was able to successfully pull a cert. The issue is, I have a firewall set up that blocks DNS requests from everywhere except my DNS servers (PiHole), so I had to pause that rule temporarily to get the request to go through.

Wondering what I can do here (if anything) to resolve this without having to disable my firewall rules regularly.

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[–] MangoPenguin@lemmy.blahaj.zone 1 points 9 months ago (1 children)

Create a new rule on the firewall to allow DNS requests to cloudflare from that host only.

[–] WASTECH@lemmy.world 1 points 9 months ago

That is what I ended up doing temporarily, but I think I will just make it temporarily permanent. I could likely set up another Docker container to run a DNS server connected to a DoH resolver, and use that container as the DNS server for Traefik, but that's a lot of work.