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My domain is: nanotekdynamic.online
I can login to a root shell on my machine (yes or no, or I don't know): yes
Since yesterday (?) I can't access different sub domains with Firefox (web), Thunderbird (CalDAV, CardDAV) or other apps like Bitwarden (password manager).
Every sub domain refers to a self hosted server at my private IP.
I configured Cloudflare's DNS with A and CNAME records a while ago.
I created an API Token for DNS challenging with certbot in nginx proxy Manager.
Everything worked fine until now.
The wildcard certificate seems to be okay, ut the hosts are all offline now.
Firefox gave me an OSCP-stapling error first and now not even a connection was build because the hosts are using self signed certificates (why - the wildcard cert is sill there?)
Opera give me a similiar error and the expire date is not the same as the wildcard's one.
So, I know that LE will end OSCP, that was my first thought.
I didn't change anything on my Proxmox system, on the servers or NPM or Cloudflare.
Unfortunately I have no idea where to start. Could someone give me a hint?