# Update with DynDNS
**URL:** https://forum.yunohost.org/t/update-with-dyndns/40734
**Category:** Support
**Tags:** upgrade, english
**Created:** [November 5, 2025, 7:17am UTC](https://forum.yunohost.org/t/update-with-dyndns/40734 "2025-11-05T07:17:56Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@Struppi](https://forum.yunohost.org/u/Struppi)
#### Post date: [November 5, 2025, 7:17am UTC](https://forum.yunohost.org/t/update-with-dyndns/40734/1 "2025-11-05T07:17:56Z")
**What type of hardware are you using** : Old laptop or computer
**What YunoHost version are you running** : 12.1.34
**How are you able to access your server** : SSH
### Describe your issue
now I made the update from 11.x to 12.x, I was afraid but I hoped that after a while the most problems are solved. so I started the update via ssh and the proccess was running without problems.
But now I can’t reach my server anymore. I got the error of a missing certificate and after I ignore this, I got 500 internal server error. Now I am stucked without any sense what to do.
Ir seems that there is a problem with my DnySNS Domain. I can’t configure the MX record, but this was ok in the last years when I used yunohost. But how I can use my DynDNS with the new version?
I tried all commands I found on the documentation e.g.
> **[Nohost.me domains | Yunohost](https://doc.yunohost.org/de/admin/tutorials/domains/dns_nohost_me/)**
>
> In order to make self-hosting as accessible as possible, the YunoHost Project provides a free and automatically configured domain name service. By using this service, you won't have to configure DNS records yourself, which can be tedious and...
> **[Konfiguration der DNS-Zone | Yunohost](https://doc.yunohost.org/de/admin/get_started/post_install/dns_config/)**
>
> Das Domain Name System (DNS) ist einer der wichtigsten Dienste in vielen IP-basierten Netzwerken.
nothing changed. I hope there is a possibillity to bring back the use of all my services I used via yunohost
### Share relevant logs or error messages
500 Internal Server error
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### Author:  [@Aleks](https://forum.yunohost.org/u/Aleks)
#### Post date: [November 5, 2025, 6:55pm UTC](https://forum.yunohost.org/t/update-with-dyndns/40734/2 "2025-11-05T18:55:45Z")
I don’t know what relation you make between using a DynDNS domain, upgrading from 11 to 12, and the error 500 …
Can you explain what exactly is returning an error 500 : the YunoHost user portal ? A specific app ? The yunohost webadmin ?
Did the 11 → 12 migration ran and completed succesfully, or did it fail somewhere in the middle ?
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### Author:  [@Struppi](https://forum.yunohost.org/u/Struppi)
#### Post date: [November 5, 2025, 7:26pm UTC](https://forum.yunohost.org/t/update-with-dyndns/40734/3 "2025-11-05T19:26:10Z")
Thank you. But I solved the problem.
I did the update via the CLI and I guess the error 500 was because of the missing/wrong certificate. Then I searched a solution for the console, some debugging output for the yunohost app. But I failed to find something.
Later I tried the local IP with the browser and could login in the admin panel. there I update all apps and then I got an error message while I calling the refreshing of the certification. The Problem was here, the port 80 was not open. After I opened it everything is working now.
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### Author:  [@system](https://forum.yunohost.org/u/system)
#### Post date: [December 5, 2025, 7:26pm UTC](https://forum.yunohost.org/t/update-with-dyndns/40734/4 "2025-12-05T19:26:27Z")
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