Hi people!
My goal is to run NGINX as a proxy and PiHole and another applications behind NGINX proxy. I've pointed all devices in my LAN to use PiHole DNS and I've registered in PiHole DNS solver table two subdomains pihole.localhost and app2.localhost, both pointing to my server LAN IP (192.168.18.187).
Everything works if I directly use the 192.168.18.187 IP, I can reach the PiHole dashboard as it's my default application in NGINX. But if I try pihole.localhost, it throws the error ERR_CONNECTION_REFUSED.
Here are my all docker compose files:
- nginx-proxy docker-compose file:
version: '3.3'
services:
nginx-proxy:
image: nginxproxy/nginx-proxy:alpine
restart: always
ports:
- "80:80"
environment:
DEFAULT_HOST: pihole.localhost
volumes:
- ./current/public:/usr/share/nginx/html
- ./vhost:/etc/nginx/vhost.d
- /var/run/docker.sock:/tmp/docker.sock:ro
labels:
- "com.github.jrcs.letsencrypt_nginx_proxy_companion.nginx_proxy=true"
networks:
default:
external:
name: nginx-proxy
- PiHole docker-compose file:
version: "3.3"
# https://github.com/pi-hole/docker-pi-hole/blob/master/README.md
services:
pihole:
image: pihole/pihole:latest
ports:
- '53:53/tcp'
- '53:53/udp'
- "67:67/udp"
- '8053:80/tcp'
volumes:
- './etc-pihole:/etc/pihole'
- './etc-dnsmasq.d:/etc/dnsmasq.d'
# run `touch ./var-log/pihole.log` first unless you like errors
# - './var-log/pihole.log:/var/log/pihole/pihole.log'
# Recommended but not required (DHCP needs NET_ADMIN)
# https://github.com/pi-hole/docker-pi-hole#note-on-capabilities
#cap_add:
# - NET_ADMIN
environment:
FTLCONF_LOCAL_IPV4: 192.168.18.187
#PROXY_LOCATION: pihole
PROXY_LOCATION: 192.168.18.187:80
VIRTUAL_HOST: pihole.localhost
VIRTUAL_PORT: 80
networks:
- nginx-proxy
#extra_hosts:
# Resolve to nothing domains (terminate connection)
#- 'nw2master.bioware.com nwn2.master.gamespy.com:0.0.0.0'
# LAN hostnames for other docker containers using nginx-proxy Ex:
#- 'yourDomain.lan:192.168.41.55'
#- 'pihole pihole.yourDomain.lan:192.168.41.55'
#- 'ghost ghost.yourDomain.lan:192.168.41.55'
#- 'wordpress wordpress.yourDomain.lan:192.168.41.55'
#- 'pihole.localhost:192.168.18.187'
restart: always
networks:
nginx-proxy:
external: true
And I've checked if the pi-hole DNS solving was correct, and it's working properly:
nslookup pihole.localhost
Server: 192.168.18.187
Address: 192.168.18.187#53
Name: pihole.localhost
Address: 192.168.18.187
Could anyone help me? Thanks in advance 
I was following this tutorial:
