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DNS Black-holing w/ DNS over TLS - Personal Privacy Part 1 (lemmy.ml)

submitted 1 day ago by relic4322@lemmy.ml to c/privacy@lemmy.ml

16 comments fedilink hide all child comments

So DNS Black-holing is not new obviously, and what stands out as the go to solution? Pihole probably... and yeah thats what im using because hey its a popular choice. Though I am running it in docker. Combining that with Unbound (also in docker), and configuring outbound DNS to use DNS over TLS, with a few additional minor tweaks, but otherwise mostly standard configuration on both.

Wondering what you guys might be using, and if you are using Pihole and/or Unbound if you have any tips on configuration.

Happy to share my config if there is interest.

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[–] relic4322@lemmy.ml 1 points 14 hours ago (1 children)

happy to share my docker-compose with pihole and unbound. im not the original author its a compilation of a few peoples. no issues. normal DNS inside the house DoT outside.

[–] ohshit604@sh.itjust.works 1 points 11 hours ago* (last edited 10 hours ago) (1 children)

If you don't mind DM'ing me or dropping it in a comment here it would be greatly appreciated! The docker engine isn't something entirely new to me so i'm a bit skeptical into thinking that i missed something but always happy to compare with others, actually Docker is what pushed me to switch fully to Linux on my personal computers.

Snippet from my docker-compose.yml:

  pihole:
    container_name: pihole
    hostname: pihole
    image: pihole/pihole:latest
    networks:
      main:
        ipv4_address: 172.18.0.25
    # For DHCP it is recommended to remove these ports and instead add: network_mode: "host"
    ports:
      - "53:53/tcp"
      - "53:53/udp"
      - "127.0.0.1:67:67/udp" # Only required if you are using Pi-hole as your DHCP server
      - "127.0.0.1:85:80/tcp"
      - "127.0.0.1:7643:443"
    environment:
      TZ: 'America/Vancouver'
      FTLCONF_webserver_api_password: 'insert-password-here'
      FTLCONF_dns_listeningMode: 'all'
    # Volumes store your data between container upgrades
    volumes:
      - './config/pihole/etc-pihole:/etc/pihole'
      - './config/pihole/etc-dnsmasq.d:/etc/dnsmasq.d'
      - '/etc/hosts:/etc/hosts:ro'
  #   https://github.com/pi-hole/docker-pi-hole#note-on-capabilities
    cap_add:
      - NET_ADMIN # Required if you are using Pi-hole as your DHCP server, else not needed
      - CAP_SYS_TIME
      - CAP_SYS_NICE
      - CAP_CHOWN
      - CAP_NET_BIND_SERVICE
      - CAP_NET_RAW
      - CAP_NET_ADMIN
    restart: unless-stopped
    labels:
      - "traefik.enable=true"
      - "traefik.http.routers.pihole.rule=Host(`pihole.my.domain`)"
      - "traefik.http.routers.pihole.entrypoints=https"
      - "traefik.http.routers.pihole.tls=true"
      - "traefik.http.services.pihole.loadbalancer.server.port=80"
      - "traefik.http.routers.pihole.middlewares=fail2ban@file"
 unbound:
   image: alpinelinux/unbound
   container_name: unbound
   hostname: unbound
    networks:
      main:
        ipv4_address: 172.18.0.26
   ports:
     - "127.0.0.1:5334:5335"
   volumes:
     - ./config/unbound/:/var/lib/unbound/
     - ./config/unbound/unbound.conf:/etc/unbound/unbound.conf
     - ./config/unbound/unbound.conf.d/:/etc/unbound/unbound.conf.d/
     - ./config/unbound/log/unbound.log:/var/log/unbound/unbound.log
   restart: unless-stopped

Edit: After re-reading the Unbound github and their documentation it seems i may have missed some volume mounts that are key to the function of Unbound, i'll definitely have to dive deeper into it.

[–] relic4322@lemmy.ml 1 points 9 hours ago (1 children)

sure thing, here you are

services:
  pihole:
    container_name: pihole
    image: pihole/pihole:latest
    ports:
      # DNS Ports
      - "53:53/tcp"
      - "53:53/udp"
      # Default HTTP Port
      - "8082:80/tcp"
      # Default HTTPs Port. FTL will generate a self-signed certificate
      - "8443:443/tcp"
      # Uncomment the below if using Pi-hole as your DHCP Server
      #- "67:67/udp"
      # Uncomment the line below if you are using Pi-hole as your NTP server
      #- "123:123/udp"
    environment:
      # Set the appropriate timezone for your location from
      # https://en.wikipedia.org/wiki/List_of_tz_database_time_zones, e.g:
      TZ: 'America/New_York'
      # Set a password to access the web interface. Not setting one will result in a random password being assigned
      FTLCONF_webserver_api_password: 'false cat call cup'
      # If using Docker's default `bridge` network setting the dns listening mode should be set to 'all'
      FTLCONF_dns_listeningMode: 'all'
      FTLCONF_dns_upstreams: '127.0.0.1#5335' # Unbound
    # Volumes store your data between container upgrades
    volumes:
      # For persisting Pi-hole's databases and common configuration file
      - './etc-pihole:/etc/pihole'
      # Uncomment the below if you have custom dnsmasq config files that you want to persist. Not needed for most starting fresh with Pi-hole v6. If you're upgrading from v5 you and have used this directory before, you should keep it enabled for the first v6 container start to allow for a complete migration. It can be removed afterwards. Needs environment variable FTLCONF_misc_etc_dnsmasq_d: 'true'
      #- './etc-dnsmasq.d:/etc/dnsmasq.d'
    cap_add:
      # See https://github.com/pi-hole/docker-pi-hole#note-on-capabilities
      # Required if you are using Pi-hole as your DHCP server, else not needed
      - NET_ADMIN
      # Required if you are using Pi-hole as your NTP client to be able to set the host's system time
      - SYS_TIME
      # Optional, if Pi-hole should get some more processing time
      - SYS_NICE
    restart: unless-stopped
  unbound:
    container_name: unbound
    image: mvance/unbound:latest # Change to use 'mvance/unbound-rpi:latest' on raspberry pi
    # use pihole network stack
    network_mode: service:pihole
    volumes:
      # main config
      - ./unbound-config/unbound.conf:/opt/unbound/etc/unbound/unbound.conf:ro
      # custom config (unbound.conf.d/your-config.conf). unbound.conf includes these via wilcard include
      - ./unbound-config/unbound.conf.d:/opt/unbound/etc/unbound/unbound.conf.d:ro
      # log file
      - /srv/docker/pihole-unbound/unbound/etc-unbound/unbound.log:/opt/unbound/etc/unbound/unbound.log
    restart: unless-stopped

I am relatively new to docker as well tbh. I did a lot with virtualization and a lot with linux and never bothered, but I totally get the use case now ha. just an FYI, if you use docker on Windows it runs slower as it has to leverage the Windows subsystem Linux (WSL) and a slightly different docker engine (forget which one). So linux is your best bet. If you do want to use a full VM I found Qemu to be the best option for least resource usage.

[–] ScoffingLizard@lemmy.dbzer0.com 1 points 8 hours ago

Dumb question, but is it not a security issue to list your open ports?