ddnsgd

“ddnsgd” is a command line tool to update dynamic DNS records on Google Domains. You can set an interval for it to fetch your IPv4 address and update the DDNS record.

Usage

Usage:
  ddnsgd [flags]

Flags:
  -h, --help              help for ddnsgd
  -H, --hostname string   subdomain.yourdomain.com
  -i, --interval int      The interval in seconds to fetch the IPv4 address and update the DNS record.
  -p, --password string   The generated password associated with the host that is to be updated.
  -u, --username string   The generated username associated with the host that is to be updated.

Example

$ ddnsgd --hostname subdomain.yourdomain.com --interval 30 --username GENERATED_USERNAME --password GENERATED_PASSWORD

Installation

Docker and Docker Compose

The “ddnsgd” docker image is available upon ghcr.io registry. You can pull it running the command below:

$ docker pull ghcr.io/dominickbrasileiro/ddnsgd

If you want to pull a specific version of “ddnsgd”, use a tag:

$ docker pull ghcr.io/dominickbrasileiro/ddnsgd:1.1.0

To run the “ddnsgd” image, you’ll need to provide the following environment variables:

  • HOSTNAME
  • INTERVAL
  • USERNAME
  • PASSWORD

Example using docker run command:

$ docker run \
-e HOSTNAME=subdomain.yourdomain.com \
-e INTERVAL=30 \
-e USERNAME=GENERATED_USERNAME \
-e PASSWORD=GENERATED_PASSWORD \
--name ddnsgd ghcr.io/dominickbrasileiro/ddnsgd

Example using docker-compose.yml:

version: "3.8"
services:
  ddnsgd:
    container_name: "ddnsgd"
    image: "ghcr.io/dominickbrasileiro/ddnsgd"
    restart: "always"
    environment:
      - "HOSTNAME=subdomain.yourdomain.com"
      - "INTERVAL=30"
      - "USERNAME=GENERATED _USERNAME"
      - "PASSWORD=GENERATED_PASSWORD"

Building from source

Requirements

  • Go (1.19 or later)
  1. Using make and Makefile

$ git clone https://github.com/dominickbrasileiro/ddnsgd.git
$ cd ddnsgd
$ make build
  1. Without Makefile

$ git clone https://github.com/dominickbrasileiro/ddnsgd.git
$ cd ddnsgd
$ go get -v ./...
$ go build -o ./bin/ddnsgd .

Now you have the “ddnsgd” binary in ./bin/ddnsgd. If you want to use it globally, run the command below:

$ sudo mv ./bin/ddnsgd /usr/local/bin

!

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GitHub

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