Pihole blocking DNS queries to LetsEncrypt, unable to obtain certs behind pihole

[Taako_Magnusen]

Thanks, knowing it was docker nonsense gave me enough info to find these posts:

DNS inside container not working when DNS Server is another container

Docker container can’t use PiHole DNS Server in another container

Solve DNS Resolution in Other Containers when using Docker pihole

Problem When using docker pihole container as the sole DNS on the network, other containers cannot resolve DNS. Symptoms Other containers unable to resolve DNS using nslookup in other containers gives erros stating something like ;; reply from unexpected source: 172.17.0.1#53, expected 192.168.1.2#53 where 192.168.1.2 is the pihole DNS and 172.17.0.1 is the docker bridge network gateway pihole logs show that the queries from other containers are arriving, forwarding, and being responded to a…