Normally, I pointed port 80 and port 443 to my NS7-Installation. For test purposes, I changed it to the NS8-IP.
At the upstream DSL router the ports were forwarded to OPNSense. I have checked this again.
But the requesting of the TLS-Certificate still fails.
{"context":{"action":"set-certificate","data":{"fqdn":"NS8Beta.home.dargels.de","sync":true},"extra":{"description":"Processing","eventId":"1bdeb310-2f02-4384-8ecb-2073af1951ee","logs":{"instance":"traefik1","path":"?searchQuery=&context=module&selectedAppId=traefik1&followLogs=false&startDate=2023-09-19&startTime=08%3A23&autoStartSearch=true"},"title":"Request certificate for NS8Beta.home.dargels.de"},"id":"bb71a2eb-27aa-4066-a4eb-cee1b514a700","parent":"","queue":"module/traefik1/tasks","timestamp":"2023-09-19T06:23:14.400807858Z","user":"admin"},"status":"aborted","progress":99,"subTasks":[],"validated":true,"result":{"error":"","exit_code":2,"file":"task/module/traefik1/bb71a2eb-27aa-4066-a4eb-cee1b514a700","output":{"obtained":false}}}
And although the generation of the TLS certificate failed, I tried Dokuwiki and NextCloud.
Oh wonder: there the LE certificates are provided correctly.
And although the generation of the TLS certificate apparently failed, I called the NS8beta-URL.
Oh wonder, the LE certificate was provided correctly after all.
Even after refreshing the web pages of the cluster admin page, the TLS certificate deployment is declared as unsuccessful.