Cloudflare DDNS Updater Script on Synology DSM

This script support one domain / subdomain and IPv4, IPv6.

The script automatically create DNS record in zone if not exist.

Before Install

1. Login Cloudflare
2. Create or Use API Token: https://dash.cloudflare.com/profile/api-tokens with following permissions
   • Zone > DNS > Edit
   • Zone > Zone > Read
   • Zone > Zone Settings > Read

Install

1. Activate SSH access on your DSM

   Navigate to Control Panel > Terminal & SNMP > Enable SSH service

2. Connect via SSH

3. Run this script:

 sudo wget https://raw.githubusercontent.com/JohnTheBoss/cloudflare_ddns_synology/master/cloudflare.php -O /usr/syno/bin/ddns/cloudflare.php && sudo chmod 755 /usr/syno/bin/ddns/cloudflare.php

4. Add to DDNS Provider list:

sudo cp /etc.defaults/ddns_provider.conf /etc.defaults/ddns_provider.conf.orign ## Backup the original version

sudo tee -a /etc.defaults/ddns_provider.conf > /dev/null << END
[Cloudflare]
    modulepath=/usr/syno/bin/ddns/cloudflare.php
    queryurl=https://www.cloudflare.com/
END

5. Setup your DDNS settings:

   • Navigate to Control Panel > External Access > DDNS
   • Add new DDNS
     • Service provider: Cloudflare
     • Hostname: yourDomain.ltd
     • Username: Cloudflare email address
     • Password: Your created API Token
   • Save

6. DISABLE SSH Access (Navigate to Control Panel > Terminal & SNMP > Enable SSH service)