Cloudflare Dynamic DNS Updater

Simple Bash Script to update your Cloudflare DNS IPv4 and IPv6 Addresses.

Parameter

EXTERNAL_IPv4: optional, if not set it uses the current external ipv4 addr
EXTERNAL_IPv6: optional, if not set it uses the current external ipv6 addr
CF_EMAIL: required, your cloudflare login email
CF_TOKEN: required, your cloudflare api key (you can find it under Settings -> API Key -> Global API Key)
CF_ZONE_NAME required, your root domain name (eg. example.tld)
CF_DOMAIN_NAME required, your domain or subdomain name you want to update (eg. subdomain.example.tld)

This is a bash script. It is necessary to install bash, jq & bind-tools

(Freebsd) add the following line to /etc/crontab

*/5     *       *       *       *       root    /usr/local/bin/bash /usr/local/bin/cloudflare-update-v4-and-v6.sh