Expected Behaviour:
http://pi.hole/admin displays web UI
Actual Behaviour:
pi.hole does not resolve
Debug Token:
https://tricorder.pi-hole.net/54maz32e88!
Setup:
- Host device: Raspberry Pi 3B+
- Install method: Docker (
pihole/pihole) - Exposed behind an automated NGINX reverse proxy (https://github.com/Brain-Gamer/nginx-proxy)
- Pi-Hole configured as DNS on: DD-WRT router
Scroll to the end of this message for complete Docker compose configurations.
My debugging so far:
-
My Pi-Hole’s LAN IP is 192.168.1.140.
-
My DD-WRT router has this IP set as the static DNS.
-
My DD-WRT router’s LAN IP is 192.168.1.1.
-
My computer has this IP set in
/etc/resolv.conf. -
Visiting http://192.168.1.140 in a browser takes me to the Pi-Hole splash page.
-
Visiting http://pi.hole in a browser fails to load.
-
On my laptop, using
nslookupto query the pihole box for pi.hole returns 0.0.0.0:$ nslookup pi.hole 192.168.1.140 Server: 192.168.1.140 Address: 192.168.1.140#53 Name: pi.hole Address: 0.0.0.0 -
On my laptop, using
nslookupto query the default DNS for pi.hole fails:$ nslookup pi.hole Server: 192.168.1.1 Address: 192.168.1.1#53 *** Can't find pi.hole: No answer -
If I manually modify
/etc/resolv.confto use 192.168.1.140, thennslookup pi.holesucceeds (returns 0.0.0.0), but pi.hole still doesn’t resolve in a browser.
So... what gives? Any insight would be greatly appreciated.
Docker compose configuration:
version: "2"
services:
nginx-proxy:
restart: unless-stopped
image: braingamer/nginx-proxy-arm
container_name: nginx-proxy
ports:
- 80:80
- 443:443
environment:
DEFAULT_HOST: pi.hole
volumes:
- "/home/rlue/.local/etc/nginx/certs:/etc/nginx/certs:ro"
- /var/run/docker.sock:/tmp/docker.sock:ro
pihole:
image: pihole/pihole:latest
container_name: pihole
ports:
- 53:53/tcp
- 53:53/udp
- 67:67/udp
environment:
TZ: Asia/Taipei
WEBPASSWORD: "{{ pihole_password }}"
DNS1: 1.1.1.1
DNS2: 1.0.0.1
VIRTUAL_HOST: pi.hole
HTTPS_METHOD: noredirect
volumes:
- "/home/rlue/.local/etc/pihole:/etc/pihole"
- "/home/rlue/.local/etc/dnsmasq.d:/etc/dnsmasq.d"
dns:
- 127.0.0.1
- 1.1.1.1
# Recommended but not required (DHCP needs NET_ADMIN)
# https://github.com/pi-hole/docker-pi-hole#note-on-capabilities
cap_add:
- NET_ADMIN
restart: unless-stopped
Auto-generated NGINX reverse proxy config:
upstream pi.hole {
## Can be connect with "nginxproxy_default" network
# pihole
server 192.168.16.8:80;
}
server {
server_name pi.hole;
listen 80 default_server;
access_log /var/log/nginx/access.log vhost;
include /etc/nginx/vhost.d/default;
location / {
proxy_pass http://pi.hole;
}
}
server {
server_name pi.hole;
listen 443 ssl http2 default_server;
access_log /var/log/nginx/access.log vhost;
return 500;
ssl_certificate /etc/nginx/certs/default.crt;
ssl_certificate_key /etc/nginx/certs/default.key;
}