# Pour SWAG PROXY MANAGER LetsEncrypt Certbot rejette l’enregistrement DNS TXT pour un certificat joker

**URL:** <https://community.letsencrypt.org/t/pour-swag-proxy-manager-letsencrypt-certbot-rejette-l-enregistrement-dns-txt-pour-un-certificat-joker/252498>\
**Category:** Help\
**Created:** [October 27, 2026, 9:17pm UTC](https://community.letsencrypt.org/t/pour-swag-proxy-manager-letsencrypt-certbot-rejette-l-enregistrement-dns-txt-pour-un-certificat-joker/252498 "2026-10-27T21:17:47Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![ange.noisyhand](https://avatars.discourse-cdn.com/v4/letter/a/4491bb/32.png) [@ange.noisyhand](https://community.letsencrypt.org/u/ange.noisyhand)\
**Post date:** [October 27, 2026, 9:17pm UTC](https://community.letsencrypt.org/t/pour-swag-proxy-manager-letsencrypt-certbot-rejette-l-enregistrement-dns-txt-pour-un-certificat-joker/252498/1 "2026-10-27T21:17:47Z")

</div>

Please fill out the fields below so we can help you better. Note: you must provide your domain name to get help. Domain names for issued certificates are all made public in Certificate Transparency logs (e.g. [crt.sh | example.com](https://crt.sh/?q=example.com)), so withholding your domain name here does not increase secrecy, but only makes it harder for us to provide help.

My domain is:\*.xxx.duckdns.org

I ran this command: demande de certificat

It produced this output: Encountered exception during recovery: certbot.errors.PluginError: The TXT value for domain "[xxx.duckdns.org](http://xxx.duckdns.org)" could not be deleted.  
Request status code: 200  
Request response text: KO  
The TXT update "KO" for domain "isJ1NA4QZwITWc5PFciovml\_pO4EPB2tt7A\_MPXwV3c" could not be set.

My web server is (include version):Linuxserver.io version : 5.8.0-ls495

The operating system my web server runs on is (include version):

My hosting provider, if applicable, is:duckdns.org

I can login to a root shell on my machine (yes or no, or I don't know):

I'm using a control panel to manage my site (no, or provide the name and version of the control panel):

The version of my client is (e.g. output of `certbot --version` or `certbot-auto --version` if you're using Certbot):

---

<div class="post-metadata">

**Author:** ![MikeMcQ](https://sea3.discourse-cdn.com/letsencrypt/user_avatar/community.letsencrypt.org/mikemcq/32/52772_2.png) [@MikeMcQ](https://community.letsencrypt.org/u/MikeMcQ)\
**Post date:** [October 27, 2026, 10:00pm UTC](https://community.letsencrypt.org/t/pour-swag-proxy-manager-letsencrypt-certbot-rejette-l-enregistrement-dns-txt-pour-un-certificat-joker/252498/2 "2026-10-27T22:00:11Z")

</div>

> [@ange.noisyhand](#):
>
> certbot.errors.PluginError: The TXT value for domain "[xxx.duckdns.org](http://xxx.duckdns.org)" could not be deleted.  
> Request status code: 200  
> Request response text: KO  
> The TXT update "KO" for domain "isJ1NA4QZwITWc5PFciovml\_pO4EPB2tt7A\_MPXwV3c" could not be set.

I think you should ask about that on the SWAG support forum.

That error is from the DNS plugin used for a wildcard cert. SWAG uses a program called Certbot to request certs. But, the duckdns DNS plugin comes from a third party. Further, coordinating the configuration of your container, and this plugin, and your server is all done by SWAG.

The error is a result of some configuration error.

This section of the SWAG doc relates to this setup: [SWAG - LinuxServer.io](https://docs.linuxserver.io/general/swag/#create-container-via-duckdns-validation-with-a-wildcard-cert)

Someone else here may have some experience to share. But, please post your full domain name. It is very difficult to debug these kinds of errors without the full name.

---

<div class="post-metadata">

**Author:** ![ange.noisyhand](https://avatars.discourse-cdn.com/v4/letter/a/4491bb/32.png) [@ange.noisyhand](https://community.letsencrypt.org/u/ange.noisyhand)\
**Post date:** [October 28, 2026, 7:59am UTC](https://community.letsencrypt.org/t/pour-swag-proxy-manager-letsencrypt-certbot-rejette-l-enregistrement-dns-txt-pour-un-certificat-joker/252498/3 "2026-10-28T07:59:54Z")

</div>

Merci pour ton retour 👍  
je suis encore novice dans ce monde informatique  
Comme tu le suggère je vais aller sur le forum [linuxserver.io](http://linuxserver.io).  
Mais concernant mon erreur de configuration, j'ai des doutes car tout fonctionnait jusqu'à la semaine dernière lorsque j'ai mis à jour le conteneur swag.