Netcup Dynamic DNS Client

Since netcup does not support any form of DynDNS (time of writing: 01.05.2020), but does provide a clean API I decided to write this tiny tool to overwrite DNS records. Currently only A and AAAA records are supported and need to be defined first. This can be done in the customer control panel.

What do I need?

• Customer ID
• API key
• API password

How to use it?

First install the dependencies:

pip3 install configparser

Then use the script with:

python3 updateDynDns.py subdomain.domain.de

What does it do?

The python script fetches the the IPv4 and IPv6 address and uses them to update the A and AAAA record of subdomain.domain.de.

But this is only a single DNS update and you promised me a dynamic DNS update client!

Well this is actually true. Just use cronjobs.