54 lines
1.8 KiB
Markdown
54 lines
1.8 KiB
Markdown
# Pi-Hole + Unbound on Docker (works on Synology)
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## Description
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Running Pi-Hole in Docker can be challenging due to networking requirements by Pi-Hole, this is especially true when the ports that Pi-Hole uses are shared by the host it's running on (this is true for Synology in the default configuration).
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This project uses a [`macvlan` Docker network](https://docs.docker.com/network/macvlan/) to place your containers on your main network, with their own IP addresses and MAC addresses. Pi-Hole uses Unbound as it's resolver, and Unbound uses Cloudflare (1.1.1.1) upstream in order to support DNSSEC and DNS-over-TLS.
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- Uses 2 Containers
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- Pi-Hole ([pihole/pihole](https://hub.docker.com/r/pihole/pihole)) - Official from Pi-Hole
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- Unbound ([mvance/unbound](https://hub.docker.com/r/mvance/unbound))
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## Instructions
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#### Before running
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- Update some things in the docker compose, such as your IP addresses/subnets.
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- Add a `.env` file next to the docker-compose.yaml so you can pass in the `${WEBPASSWORD}`
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- Update the secondary/backup nameserver in the `resolv.conf` file
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- Lastly you might want to provide some manual DNS entries in the `dnsmasq.conf` and/or `hosts` files
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#### Then run it
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```bash
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sudo docker-compose up -d
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```
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#### After
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Test your configuration with dig:
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```bash
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dig @192.168.1.248 google.com
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# Expecting "status: NOERROR"
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```
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You can also test for DNSSEC functionality:
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```bash
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dig sigfail.verteiltesysteme.net @ 192.168.1.248
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# Expecting "status: SERVFAIL"
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dig sigok.verteiltesysteme.net @ 192.168.1.248
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# Expecting "status: NOERROR"
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```
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If all looks good, configure your router/DHCP server to serve your new Pi-Hole IP address (`192.168.1.248`) to your clients.
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### Acknowledgements
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- http://tonylawrence.com/posts/unix/synology/free-your-synology-ports/
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- https://github.com/MatthewVance/unbound-docker
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