Changed local domain, but continue to see the old one for the host

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1

Hey there !

I've my full stack docker with pi-hole, configured as DHCP and DNS for my lan.
I use the bridge mode (with a traefik as reverse, but not for the 53/UDP because it's useless).

My last domain configured was ".lan".
In the Query Log, and despite the fact that I changed it everywhere (it seem to), everything concerning the docker host remains in .lan.

I have already restarted the FTL service, and restart the whole stack...

On all file/trace below :

  • x.x.x.x is lan IP
  • y.y.y.y is docker stack IP
  • z.z.z.z is wan IP

My pihole version (latest on docker hub):

Docker Tag 2022.01.1 Pi-hole v5.8.1 FTL v5.13 Web Interface v5.10.1

Example (from the web interface):

2022-01-19 11:48:38	AAAA  pihole.mydomain.tld	host.lan	OK (cache)	CNAME (0.0ms)	
2022-01-19 11:48:38	A	  pihole.mydomain.tld	host.lan	OK (cache)	CNAME (0.0ms)

Exemple from logs (CLI on the container):

Jan 19 11:55:41 dnsmasq[405]: query[A] pihole.mydomain.tld from x.x.x.1
Jan 19 11:55:41 dnsmasq[405]: config pihole.mydomain.tld is <CNAME>
Jan 19 11:55:41 dnsmasq[405]: /etc/pihole/custom.list host.mydomain.tld is y.y.y.50
Jan 19 11:55:41 dnsmasq[405]: query[AAAA] pihole.mydomain.tld from x.x.x.1
Jan 19 11:55:41 dnsmasq[405]: config pihole.mydomain.tld is <CNAME>

CLI on the container:

root@containerid:/etc# host y.y.y.50
50.y.y.y.in-addr.arpa domain name pointer host.mydomain.tld.
root@containerid:/etc# host 127.0.0.1
1.0.0.127.in-addr.arpa domain name pointer localhost.mydomain.tld.

My docker-compose configuration (It's not the original file, I only put useful information for my problem) :

---
version: '3.8'

networks:
  my_net:
    driver: bridge
    ipam:
      driver: default
      config: [{subnet: x.x.x.0/24, gateway: x.x.x.1}]

services:
  traefik:
    container_name: traefik
    image: traefik:latest
    ports:
      - 80:80
      - 443:443
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock:ro
      - ./traefik/conf/traefik.yml:/etc/traefik/traefik.yml:ro
      - /etc/localtime:/etc/localtime:ro
      - /etc/timezone:/etc/timezone:ro
    depends_on:
      - pihole
    networks:
      my_net:
        ipv4_address: x.x.x.10
    restart: unless-stopped

  pihole:
    container_name: pihole
    image: pihole/pihole:latest
    env_file:
      - "./pihole/.env"
    volumes:
      - ./pihole/pihole/:/etc/pihole/:rw
      - ./pihole/dnsmasq.d/:/etc/dnsmasq.d/:rw
    ports:
      - 53:53/udp
      - 53:53
    dns:
      - 127.0.0.1
      - 1.1.1.1
    cap_add:
      - NET_ADMIN
    depends_on:
      - dhcphelper
    labels:
      - "traefik.enable=true"
      - "traefik.http.routers.pihole-http.rule=Host(`pihole.mydomain.tld`)"
      - "traefik.http.routers.pihole-http.entrypoints=http"
      - "traefik.http.routers.pihole-http.service=pihole-80"
      - "traefik.http.services.pihole-80.loadbalancer.server.port=80"
      - "traefik.http.routers.pihole-http.middlewares=onlylan-whitelist@file"
    networks:
      my_net:
        ipv4_address: x.x.x.15
    restart: unless-stopped

  dhcphelper:
    container_name: dhcphelper
    build:
      context: './dhcphelper'
    network_mode: "host"
    command: -s x.x.x.15
    cap_add:
      - NET_ADMIN
    restart: unless-stopped

My pi-hole ".env" file :

ServerIP=x.x.x.50
VIRTUAL_HOST=pihole.mydomain.tld
TZ=Europe/Paris
WEBPASSWORD=xxxxx
PIHOLE_DNS_1=z.z.z.z
PIHOLE_DNS_2=z.z.z.z
PIHOLE_DNS_3=z.z.z.z
PIHOLE_DNS_4=z.z.z.z
PIHOLE_DNS_5=z.z.z.z
PIHOLE_DNS_6=z.z.z.z
PIHOLE_DNS_7=x.x.x.15#5053
DNSMASQ_LISTENING=all

The dnsmasq.d/02-pihole-dhcp.conf file:

dhcp-authoritative
dhcp-range=y.y.y.101,y.y.y.251,24h
dhcp-option=option:router,y.y.y.1
dhcp-leasefile=/etc/pihole/dhcp.leases
#quiet-dhcp

domain=mydomain.tld
local=/mydomain.tld/

The dnsmasq.d/05-pihole-custom-cname.conf file:

cname=pihole.mydomain.tld,host.mydomain.tld

The setupVars.conf file:

WEBPASSWORD=xxxxx
ADMIN_EMAIL=
WEBUIBOXEDLAYOUT=boxed
WEBTHEME=default-dark
PIHOLE_DNS_1=z.z.z.z
PIHOLE_DNS_2=z.z.z.z
PIHOLE_DNS_3=z.z.z.z
PIHOLE_DNS_4=z.z.z.z
PIHOLE_DNS_5=z.z.z.z
PIHOLE_DNS_6=z.z.z.z
PIHOLE_DNS_7=x.x.x.15#5053
DNS_FQDN_REQUIRED=true
DNS_BOGUS_PRIV=true
DNSSEC=false
REV_SERVER=false
IPV4_ADDRESS=y.y.y.50
BLOCKING_ENABLED=true
DHCP_ACTIVE=true
DHCP_START=y.y.y.101
DHCP_END=y.y.y.251
DHCP_ROUTER=y.y.y.1
DHCP_LEASETIME=24
PIHOLE_DOMAIN=mydomain.tld
DHCP_IPv6=false
DHCP_rapid_commit=false
INSTALL_WEB_SERVER=true
INSTALL_WEB_INTERFACE=true
PIHOLE_INTERFACE=eth0
DNSMASQ_LISTENING=all
QUERY_LOGGING=true

The custom.list:

y.y.y.50 host.mydomain.tld

If anyone know where the problem is...
Thanks in advance !