Can't access new PiHole 6 docker install within LAN

Help
1

I'm trying to install a Pihole using Docker Compose using host networking

  • Fedora Workstation 43
  • GMKtek NucBox M3 (Intel 12th gen Core i5 12450H)
  • Docker compose.yml:
services:
  pihole:
    container_name: pihole
    network_mode: host
    image: pihole/pihole:latest
    environment:
      TZ: "America/New_York"
      FTLCONF_webserver_api_password: "**********"
    volumes:
      - './etc-pihole:/etc/pihole'
      - './etc-dnsmasq.d:/etc/dnsmasq.d'
    cap_add:
      - NET_ADMIN
    restart: unless-stopped
  • Docker engine version
Client: Docker Engine - Community
 Version:           28.2.2
 API version:       1.48 (downgraded from 1.50)
 Go version:        go1.24.3
 Git commit:        e6534b4
 Built:             Fri May 30 12:09:10 2025
 OS/Arch:           linux/amd64
 Context:           desktop-linux

Server: Docker Desktop 4.40.0 (187762)
 Engine:
  Version:          28.0.4
  API version:      1.48 (minimum version 1.24)
  Go version:       go1.23.7
  Git commit:       6430e49
  Built:            Tue Mar 25 15:07:22 2025
  OS/Arch:          linux/amd64
  Experimental:     false
 containerd:
  Version:          1.7.26
  GitCommit:        753481ec61c7c8955a23d6ff7bc8e4daed455734
 runc:
  Version:          1.2.5
  GitCommit:        v1.2.5-0-g59923ef
 docker-init:
  Version:          0.19.0
  GitCommit:        de40ad0

Actual Behaviour:

Pihole is running on my mini-pc through Docker compose. I can access the admin page through http://local-ip/admin. When I try from another PC, I am unable to access the page.
I've tried to perform an nslookup from another PC, and it fails:

nslookup cnn.com 192.168.1.76
;; communications error to 192.168.1.76#53: host unreachable

Debug Token:

https://tricorder.pi-hole.net/xLzySLHf/

2

Try:

sudo docker exec -it 6d22 pihole -d
3

That did it, thanks!

https://tricorder.pi-hole.net/xLzySLHf/

4

Do you have a firewall running on the host?

5

Your log shows FTL is running and correctly using port 53:

2025-06-07 15:49:25.619 EDT [49M] INFO: listening on 0.0.0.0 port 53
2025-06-07 15:49:25.619 EDT [49M] INFO: listening on :: port 53

Looks like a network issue.

Maybe there is a firewall blocking the connections.

6

Yeah, that was it. I figured it out and forgot to mark it solved. I had added the ports on firewalld, but it doesn't look like i made them permanent, and after a reboot, they were gone. Readded the ports, made them permanent, and now it works like a charm