yakkobr / cloudflare-dynamic-dns

Bash script to update Dynamic IP for Cloudflare

Cloudflare-Dynamic-DNS

Bash script to update Dynamic IP for Cloudflare. The script is written to be use on any platform that can run bash script. However, the action_Cloudflare_DDNS.conf is written specifically for OPNSense Custom Cron Job

Use Curl to clone Update_Cloudflare_Dynamic_IP.sh script to your local folder:

curl -LJO https://raw.githubusercontent.com/nn0x96a/Cloudflare-Dynamic-DNS/main/Update_Cloudflare_Dynamic_IP.sh

Step-by-Step Instruction:

https://sysadmin102.com/2023/08/opnsense-dynamic-dns-with-cloudflare-using-a-custom-cron-job/

Set the below parameters for Update_Cloudflare_Dynamic_IP.sh:

TOKEN="Replace with API Token"; ZONE_ID="Replace with Zone ID"; DNS_ID="Replace with DNS ID"; TYPE="A"; NAME="Replace with DNS Record Name";

API Token: https://developers.cloudflare.com/fundamentals/api/get-started/create-token/

Zone ID: https://developers.cloudflare.com/fundamentals/get-started/basic-tasks/find-account-and-zone-ids/

DNS ID: Get DNS Record ID by executing the Get_DNS_ID.sh in Terminal/Command Prompt

actions_Cloudflare_DDNS.conf is a custom Cron Job for OPNSense.

Use the curl command to clone the actions_Cloudflare_DDNS.conf to your local folder:

cd /usr/local/opnsense/service/conf/actions.d

curl -LJO https://raw.githubusercontent.com/nn0x96a/Cloudflare-Dynamic-DNS/main/actions_Cloudflare_DDNS.conf

service configd restart

Credit: special thanks to Steve@Tech Otaku for the API scripts.

Original scripts: https://www.tech-otaku.com/web-development/using-cloudflare-api-manage-dns-records/#435