Question 1

How to set up Cloudflare DDNS on Synology NAS?

Accepted Answer

Enable SSH in Synology's Control Panel, download the script via wget to /sbin/, set execute permissions with chmod, add it to ddns_provider.conf, and configure in DDNS settings with your Cloudflare Zone ID as username and API token as password.

Question 2

What Cloudflare API token permissions are needed for this script?

Accepted Answer

The token must have Zone > DNS > Edit permissions to update DNS records. Create it in Cloudflare's API Tokens section and scope it to the specific zone for security, as mentioned in the README.

Question 3

Synology Cloudflare DDNS script vs built-in DDNS providers: which is better?

Accepted Answer

This script uses Cloudflare's reliable infrastructure and is free if you own the domain, while Synology's built-in options may have limitations or costs. Cloudflare offers better security and performance, but requires manual setup and domain ownership.

Question 4

How to troubleshoot if DDNS updates fail on Synology?

Accepted Answer

Check SSH access, verify API token permissions and zone ID, ensure the script path is correct in ddns_provider.conf, and monitor Synology's DDNS logs. Cloudflare API changes might require script updates, so check the GitHub repo for issues.

Question 5

Can I use this for multiple subdomains like blog.example.com?

Accepted Answer

Yes, configure each subdomain as a separate DDNS entry in Synology's control panel with the full hostname. The script will update the A record for each specified subdomain using the Cloudflare API.

Question 6

Is this script safe to run on my Synology NAS?

Accepted Answer

It is generally safe as it uses secure API tokens and integrates with Synology's system, but ensure you follow security best practices like restricting SSH access and regularly updating the script to avoid vulnerabilities.

DDNS script for Synology

What is DDNS script for Synology?

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