CloudFlare Dynamic DNS Update Script for AsusWRT-Merlin

dhcpc-event

#!/bin/sh

#Wait 30 seconds so that the WAN can come up properly before continuing
sleep 30

#Get the new IP
IP=`wget -O - -q http://icanhazip.com`

#Update Cloudflare with the new IP
/opt/bin/wget -O - -q https://www.cloudflare.com/api_json.html --no-check-certificate --post-data "a=rec_edit&tkn=[YOUR API TOKEN]&email=[YOUR EMAIL ADDRESS]&z=[YOUR ZONE NAME]&id=[YOUR RECORD ID]&type=A&name=[RECORD NAME]&ttl=1&content=$IP"

#Log the event
logger DHCPC-EVENT SCRIPT: CloudFlare has been updated to $IP