DynDNS: configure a dynamic DNS with a Synology NAS and a domain managed by Infomaniak

This guide explains how to access a Synology NAS connected to the Internet with a dynamic IP address via a domain name.

Requirements

• Have a Synology NAS connected to the Internet with a dynamic IP address.
• A dynamic DNS must have been created on the domain concerned. Follow this guide if necessary.

Link a Synology NAS to a domain name

1. Add Infomaniak as a service provider

1. Open the Synology NAS management interface (DSM)
2. Go to the Control Panel
3. Click External Access (under the Connectivity tab)
4. Click Customize (under the DDNS tab)

• Service provider: Infomaniak
• Query URL: https://infomaniak.com/nic/update?hostname=__HOSTNAME__&myip=__MYIP__
• Click Save

2. Add a Dynamic DNS to Synology

Now that Infomaniak has been added as a service provider:

1. Open the Synology NAS management interface (DSM)
2. Go to the Control Panel
3. Click External Access (under the Connectivity tab)
4. Click Add
   
   
   
   

• Service provider: Infomaniak (the profile we created in the previous step)
• Hostname: the URL configured in the Infomaniak Manager when adding a Dynamic DNS (help)
• Username: login set in the Infomaniak Manager when adding a Dynamic DNS (help)
• Password: the password set in the Infomaniak Manager when adding a Dynamic DNS (help)

From this point on, the dynamic IP address of your Synology NAS will be automatically synced with your domain name.

3. NAT configuration for Synology DDNS

In order to make your NAS externally accessible, you need to configure its NAT. By default, Synology NASs use ports 5000 and 5001.
You can reach your NAS by using the following syntax: http://yourdomain:5000 or https://yourdomain:5001.
We recommend that you consult the official Synology documentation for more information: from this guide.

4. Configuration of a "Reverse Proxy"

If you do not wish to specify ports :5000 or :5001 in your URLs, it is possible to configure a Reverse Proxy from your Synology NAS, and therefore redirect the URLs to port 443 for port 5001 and port 80 for port 5000. Here is the link to the official Synology documentation for carrying out this configuration: from this guide.

Find out more

• Rent a Synology NAS in Switzerland with a fixed IP in the Infomaniak data centers
• What is a Synology NAS used for and why host it in a data center?
• Manually configure a Dynamic DNS via the API
• Learn more about DynDNS