Overview: Support for the Hetzner-DDNS Docker Container

Docker: https://hub.docker.com/r/kutzilla/hetzner-ddns

GitHub: https://github.com/kutzilla/docker-hetzner-ddns

 

This Docker image will allow you to use the Hetzner DNS Service as a Dynamic DNS Provider (DDNS).

 

How does it work?

 

The Go script inside this Docker Image periodically checks the DNS record with the Hetzner DNS API. It also checks the current public IP of the network, the container is running on. If the DNS record does not match the current public IP, it will update the record. Therefore your DNS record updates dynamically to the public IP.

Edited October 13, 20214 yr by kutzilla

Hi, I only have a Domain at Hetzner and want to know, if I need something more than this tool? Do I have to make some arangment in the setings at Hetzner?

Hello @Alwerich,

 

besides the Domain you need to use the DNS Console of Hetzner for your domain. Configure your domain as a zone and then you can create a personal API-Token:

 

The API-Token will be used by the Docker Image to authenticate to your zone. Create an Token with a name such "Unraid" or what ever you like:

 

Provide the necessary attributes zone-name, API-Token and record type (A if you use a IPv4 or AAAA for IPv6) to the Docker Image. Afterwards the docker image will connect to Hetzner DNS and will update your @-Record (A or AAAA) to your public IP (respectively the IP the app is running on). Then you will find your IP here:

 

 

Afterwards you will be able to create DNS-Records (such as subdomains with CNAME-records) for your domain in the console. And they will point to your Unraid-System. 

 

I hope this helps.

 

 

 

 

 

 

Hi,

thanks for the great App 🙂 

Works fine 👍

 

Now i have only one problem. The A Type @ have now me home ip adress, perfekt. 

Now i want to create a CNAME (Type) with name test and the value must be the @ , or not? 

But this is not acceptet. 

Can you post or confirm, what i must do for a value, that test.xxxxxx.com have my home ip address?

 

Thanks a lot. 

 

Hi, i have, i think, a solution...

in the Docker it self, i have add "add another variable" with name and key "RECORD_NAME". 

In this i have write in the value test

 

In the DNS Console from Hetzner, i have add a A Record with the name test.

 

and... voila.. great... 

I hope its right. The function is fine 🙂 

 

Thanks a lot. 

On 10/21/2021 at 8:53 AM, kutzilla said:

Hello @Alwerich,

 

besides the Domain you need to use the DNS Console of Hetzner for your domain. Configure your domain as a zone and then you can create a personal API-Token:

 

The API-Token will be used by the Docker Image to authenticate to your zone. Create an Token with a name such "Unraid" or what ever you like:

 

Provide the necessary attributes zone-name, API-Token and record type (A if you use a IPv4 or AAAA for IPv6) to the Docker Image. Afterwards the docker image will connect to Hetzner DNS and will update your @-Record (A or AAAA) to your public IP (respectively the IP the app is running on). Then you will find your IP here:

 

 

Afterwards you will be able to create DNS-Records (such as subdomains with CNAME-records) for your domain in the console. And they will point to your Unraid-System. 

 

I hope this helps.

 

 

 

 

 

 

 

Thank you so far. Works great with the basic "Type A | Name @" record. But how do I update my "Type A | Name www.domainname.com" record?

 

Thanks for your support!

 

 

Hello @Venari, that's a good point. There is no solution for other CNAME's yet. Could you create an Issue on https://github.com/kutzilla/docker-hetzner-ddns? Then I can look into that in the future.

 

HeyHo possible to add IPv4 and IPv6 at the same time?

Like it set up the Enviroment variable two times?

On 4/30/2022 at 11:04 AM, High-Tower said:

Hi,

thanks for the great App 🙂 

Works fine 👍

 

Now i have only one problem. The A Type @ have now me home ip adress, perfekt. 

Now i want to create a CNAME (Type) with name test and the value must be the @ , or not? 

But this is not acceptet. 

Can you post or confirm, what i must do for a value, that test.xxxxxx.com have my home ip address?

 

Thanks a lot. 

 

Hi @High-Tower,

 

I know it's been a while, but I also encountered this problem and wanted to share my solution.

To add some sub Domains you just need to create a CNAME in the DNS and Point to the A Record.

 

 

The red cell is updated by the Docker "hetzner-ddns" with the public IP every 5 Minutes.

 

 

 

On 10/10/2022 at 5:01 PM, Venari said:

 

Thank you so far. Works great with the basic "Type A | Name @" record. But how do I update my "Type A | Name www.domainname.com" record?

 

Thanks for your support!

 

 

 

Hi @Venari, 

 

As far as I have tested, only one A Record can be updated with this Docker. And this should be the main record -> Type A | Name @

But you can store www.example.com as CNAME and link to the A record. (See the picture above).

 

 

On 11/15/2022 at 10:39 AM, RiDDiX said:

HeyHo possible to add IPv4 and IPv6 at the same time?

Like it set up the Enviroment variable two times?

 

Hi @RiDDiX,

 

as I know with one Docker you can only Update A or AAAA Record. But you could just Configure one Docker for A (IPv4) and another Docker for AAAA (IPv6). That should be possible.

Hi all,

 

would anyone mind confirming that this App still works? I pretty sure that I set it up correctly and I also don't get any error-message in the console. However according to Hetzner's DNS console the IP simply won't update. The Log says "Started DynDNS". I even deleted the @ A record and then the App complains "The record @ with type A was not found in the zone wondershot.de". So it seems even the connection is working so I manually added the entry back in and restarted the App. Now the error is gone but still no update to the IP-address.

 

Any idea on how to solve this would be really helpful.

 

Thanks a lot for your support!

 

Cheers,

 

Oliver

GitHub

GitHub - mbaiti/hetzner-ddns: A slim Dynamic DNS Updater...

A slim Dynamic DNS Updater for Hetzner DNS entries, which uses the new Hetzner Cloud API. This tool monitors your public IP address and automatically updates a specific A-record in your Hetzner DNS...

works for me.