cloudflare-dyndns-dualstack

Introduction

A script for dynamically updating a CloudFlare DNS record for A or AAAA records or both.

I wrote this because I couldn't find anything that supports doing both IPv4 and IPv6 at the same time.

Dependencies

You'll need a python interpreter along with the requests, netifaces and cloudflare modules:

You can install them with pip :

pip install -r requirements.txt

Usage

Running the script

python3 cloudflare-dyndns-dualstack.py domain.example.com

Only use ipv4

python3 cloudflare-dyndns-dualstack.py --no-ipv6 domain.example.com

Only use ipv6

python3 cloudflare-dyndns-dualstack.py --no-ipv4 domain.example.com

Setup

STEP 1 (CloudFlare credentials)

Configure your cloudflare credentials. The official cloudflare module retreives them from either the users exported shell environment variables or the .cloudflare.cfg or ~/.cloudflare.cfg or ~/.cloudflare/cloudflare.cfg files, in that order.

Using shell environment variables

$ export CF_API_EMAIL='user@example.com'
$ export CF_API_KEY='00000000000000000000000000000000'
$

These are optional environment variables; however, they do override the values set within a configuration file.

Using configuration file to store email and keys

$ cat ~/.cloudflare/cloudflare.cfg
[CloudFlare]
email = user@example.com
token = 00000000000000000000000000000000
$