DDNS Setup

Porkbun API

Follow this porkbun guide on enabling the api for your domain.

ddns-updater

ddns-updater is the program used to update Porkbun's A record of your domain.

Docker install

Install the docker package from official docker repositories.

Setup

Create a directory with config.json inside, and make sure that its owner has a uid of 1000.

mkdir data
touch data/config.json
# Owned by user ID of Docker container (1000)
chown -R 1000 data
# all access (for creating json database file data/updates.json)
chmod 700 data
# read access only
chmod 400 data/config.json

Configuration for porkbun in config.json

{
  "settings": [
    {
      "provider": "porkbun",
      "domain": "domain.com",
      "host": "@",
      "api_key": "PORKBUN SECRET KEY",
      "secret_api_key": "PORKBUN API KEY",
      "ip_version": "ipv4"
    }
  ]
}

Optional "ttl" paramter specifing A record TTL not included.

Usage

docker run -d -p 8000:8000/tcp -v "$(pwd)"/data:/updater/data qmcgaw/ddns-updater

This will start a docker container that will start updating the DNS records. Status updates can be seen in a web server by going to localhost:8000.