Set up DDNS in Synology DSM


Today’s article is about how to update DNS entries for domains from via the Synology DSM function DDNS (Dynamic DNS). Since is neither available as a provider in Synology DSM, nor do the formerly common intermediary services work, this is only possible with a small workaround. And this is exactly what I would like to show you today.

You need the following things for today’s tutorial:

A domain at Namecheap.comA Synology NAS (or a custom NAS with XPEnology)A webserver with PHP support

In the next paragraph we will outline the actual problem again in detail. If you are only interested in the solution, you can skip the following paragraph…

What is the problem with Synology DSN and Namecheap?

Namecheap provides a url/web service that you can call to set a DNS record with […]

How to configure Namecheap DynDNS in Fritzbox

dyndns refreshIn the previous article I have explained, how you can set up your domains, which are rented from, for use with DynDNS (Dynamic DNS). In this article, we will focus on how to configure your Fritzbox, so that it always sends the current IP to the Namecheap DynDNS interface.
While this also possible through various clients for PC or MAC, I find the configuration with Fritzbox particularly attractive, because it is anyway running around the clock and thus no PC or MAC unnecessarily consumes more power.
(Who prefers a Raspberry Pi over a Fritzbox, should read this article here.)
Set up Namecheap DynDNS in the Fritzbox
Log into the webpanel of your Fritzbox. This should be normally accessible by navigating to or  in a browser of your choice.
Fritzbox Namecheap [...]
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Setting up DynDNS for domains with

Also, if I rent my webspace (and now my VPS) always from german companies, my domains are with a foreign supplier. Specifically at This has several reasons. I’ve only had good experience there, I really like their web interface, the payment by Paypal and also the support is really fast.
One of the features which suits me very well at is the possibility to use DynDNS with all domains registered there. And moreover it’s free. With other providers, you pay for it often.
How to configure a domain on Namecheap backend, so that the DNS records can be updated automatically, I want to show you in the following.
Configure domains with Namecheap for use with DynDNS
namecheap_dyndns_setup_1In the first step you log into your account at Then select the domain for which you want to enable the DynDNS service.
For […]