cf-ddns.sh

A minimal, portable DDNS client for automatically updating CloudFlare's DNS service to point to your current IP.

Prerequisites

• curl (with HTTPS support)

Install

Download somewhere on your system and create a cron job to run the script with your parameters on an interval.

Usage

cf-ddns.sh [OPTION] -e=EMAIL -a=APIKEY -z=ZONENAME -r=RECORDNAME

Or:

cf-ddns.sh [OPTION] -e=EMAIL -a=APIKEY -y=ZONEID -q=RECORDID

Required parameters

-e=, --email= CloudFlare account email
-a=, --apikey= CloudFlare account API key
-z=, --zonename= Zone name in the form of subdomain.domain.tld
OR
-y=, --zoneid= CloudFlare zone ID
-r=, --recordname= Record name in the form of subdomain.domain.tld
OR
-q=, --recordid= CloudFlare record ID

Options

-f, --force Force a DNS update, even if WAN IP hasn't changed -t, --test Test action without updating DNS record -w=, --wan= Manually specify WAN IP address, skip detection --get-wan-ip Determine the WAN IP, print it, and exit --get-zone-id Print zone ID corresponding to zone name and exit --get-record-id Print record ID corresponding to record name and exit -h, --help Print this message and exit