My domain is:
korimort.at
I ran this command:
certbot run --authenticator dns-inwx --dns-inwx-credentials /etc/letsencrypt/inwx.cfg --installer nginx -d korimort.at -d "*.korimort.at" -v
It produced this output:
Saving debug log to /var/log/letsencrypt/letsencrypt.log
Plugins selected: Authenticator dns-inwx, Installer nginx
Requesting a certificate for korimort.at and *.korimort.at
Performing the following challenges:
dns-01 challenge for Identifier(typ=IdentifierType(dns), value='korimort.at')
Cleaning up challenges
Missing property in credentials configuration file /etc/letsencrypt/inwx.cfg:
- Property "dns_inwx_shared_secret" not set (should be Optional shared secret code for the two-factor authentication assigned to the INWX API account.).
Ask for help or search for solutions at https://community.letsencrypt.org. See the logfile /var/log/letsencrypt/letsencrypt.log or re-run Certbot with -v for more details.
My web server is (include version):
nginx/1.26.3
The operating system my web server runs on is (include version):
Linux version 6.12.75+rpt-rpi-v8 (serge@raspberrypi.com) (aarch64-linux-gnu-gcc-14 (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for Debian) 2.44) #1 SMP PREEMPT Debian 1:6.12.75-1+rpt1 (2026-03-11)
My hosting provider, if applicable, is:
INWX: https://www.inwx.de/
I can login to a root shell on my machine (yes or no, or I don't know):
Yes.
I'm using a control panel to manage my site (no, or provide the name and version of the control panel):
CLI
The version of my client is (e.g. output of certbot --version or certbot-auto --version if you're using Certbot):
certbot 5.4.0
my inwx.cfg file looks like this:
dns_inwx_url = https://api.domrobot.com/xmlrpc/
dns_inwx_username = XXXXXXX
dns_inwx_password = YYYYYYY
dns_inwx_shared_secret =
log file output:
2026-03-26 10:07:29,411:DEBUG:urllib3.connectionpool:https://acme-v02.api.letsencrypt.org:443 "POST /acme/authz/3153963201/678773151091 HTTP/1.1" 200 393
2026-03-26 10:07:29,411:DEBUG:acme.client:Received response:
HTTP 200
Server: nginx
Date: Thu, 26 Mar 2026 09:07:29 GMT
Content-Type: application/json
Content-Length: 393
Connection: keep-alive
Boulder-Requester: 3153963201
Cache-Control: public, max-age=0, no-cache
Link: https://acme-v02.api.letsencrypt.org/directory;rel="index"
Replay-Nonce: tWo_Kf9RjibLVB5235J0b8RbetItW1htojcoHtddjNN1wDUMMHU
X-Frame-Options: DENY
Strict-Transport-Security: max-age=604800
{
"identifier": {
"type": "dns",
"value": "korimort.at"
},
"status": "pending",
"expires": "2026-04-02T08:09:59Z",
"challenges": [
{
"type": "dns-01",
"url": "https://acme-v02.api.letsencrypt.org/acme/chall/3153963201/678773151091/jpMmpQ",
"status": "pending",
"token": "hbfIAMwgXN_vbPiUKJDfBuF8k8nR-57puQkYQJMd-a8"
}
],
"wildcard": true
}
2026-03-26 10:07:29,412:DEBUG:acme.client:Storing nonce: tWo_Kf9RjibLVB5235J0b8RbetItW1htojcoHtddjNN1wDUMMHU
2026-03-26 10:07:29,412:INFO:certbot._internal.auth_handler:Performing the following challenges:
2026-03-26 10:07:29,413:INFO:certbot._internal.auth_handler:dns-01 challenge for Identifier(typ=IdentifierType(dns), value='korimort.at')
2026-03-26 10:07:29,416:DEBUG:certbot._internal.error_handler:Encountered exception:
Traceback (most recent call last):
File "/snap/certbot/5452/lib/python3.12/site-packages/certbot/_internal/auth_handler.py", line 84, in handle_authorizations
resps = self.auth.perform(achalls)
^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/snap/certbot/5452/lib/python3.12/site-packages/certbot/plugins/dns_common.py", line 68, in perform
self._setup_credentials()
File "/snap/certbot-dns-inwx/current/lib/python3.12/site-packages/certbot_dns_inwx/_internal/dns_inwx.py", line 60, in _setup_credentials
self.credentials = self._configure_credentials(
^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/snap/certbot/5452/lib/python3.12/site-packages/certbot/plugins/dns_common.py", line 199, in _configure_credentials
credentials_configuration.require(required_variables)
File "/snap/certbot/5452/lib/python3.12/site-packages/certbot/plugins/dns_common.py", line 309, in require
raise errors.PluginError(
certbot.errors.PluginError: Missing property in credentials configuration file /etc/letsencrypt/inwx.cfg:
- Property "dns_inwx_shared_secret" not set (should be Optional shared secret code for the two-factor authentication assigned to the INWX API account.).
2026-03-26 10:07:29,417:DEBUG:certbot._internal.error_handler:Calling registered functions
2026-03-26 10:07:29,417:INFO:certbot._internal.auth_handler:Cleaning up challenges
2026-03-26 10:07:29,417:DEBUG:certbot._internal.log:Exiting abnormally:
Traceback (most recent call last):
File "/snap/certbot/5452/bin/certbot", line 6, in
sys.exit(main())
^^^^^^
File "/snap/certbot/5452/lib/python3.12/site-packages/certbot/main.py", line 18, in main
return internal_main.main(cli_args)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/snap/certbot/5452/lib/python3.12/site-packages/certbot/_internal/main.py", line 1886, in main
return config.func(config, plugins)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/snap/certbot/5452/lib/python3.12/site-packages/certbot/_internal/main.py", line 1446, in run
new_lineage = _get_and_save_cert(le_client, config, sans,
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/snap/certbot/5452/lib/python3.12/site-packages/certbot/_internal/main.py", line 143, in _get_and_save_cert
lineage = le_client.obtain_and_enroll_certificate(sans, certname)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/snap/certbot/5452/lib/python3.12/site-packages/certbot/_internal/client.py", line 533, in obtain_and_enroll_certificate
cert, chain, key, _ = self.obtain_certificate(sans)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/snap/certbot/5452/lib/python3.12/site-packages/certbot/_internal/client.py", line 434, in obtain_certificate
orderr = self._get_order_and_authorizations(csr.data, self.config.allow_subset_of_names)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/snap/certbot/5452/lib/python3.12/site-packages/certbot/_internal/client.py", line 512, in _get_order_and_authorizations
authzr = self.auth_handler.handle_authorizations(orderr, self.config, best_effort)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/snap/certbot/5452/lib/python3.12/site-packages/certbot/_internal/auth_handler.py", line 84, in handle_authorizations
resps = self.auth.perform(achalls)
^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/snap/certbot/5452/lib/python3.12/site-packages/certbot/plugins/dns_common.py", line 68, in perform
self._setup_credentials()
File "/snap/certbot-dns-inwx/current/lib/python3.12/site-packages/certbot_dns_inwx/_internal/dns_inwx.py", line 60, in _setup_credentials
self.credentials = self._configure_credentials(
^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/snap/certbot/5452/lib/python3.12/site-packages/certbot/plugins/dns_common.py", line 199, in _configure_credentials
credentials_configuration.require(required_variables)
File "/snap/certbot/5452/lib/python3.12/site-packages/certbot/plugins/dns_common.py", line 309, in require
raise errors.PluginError(
certbot.errors.PluginError: Missing property in credentials configuration file /etc/letsencrypt/inwx.cfg:
- Property "dns_inwx_shared_secret" not set (should be Optional shared secret code for the two-factor authentication assigned to the INWX API account.).
2026-03-26 10:07:29,422:ERROR:certbot._internal.log:Missing property in credentials configuration file /etc/letsencrypt/inwx.cfg: - Property "dns_inwx_shared_secret" not set (should be Optional shared secret code for the two-factor authentication assigned to the INWX API account.).