Certificates Expired

Not everything went well after upgrade to Debian Trixy on the server. Apparently, Trixy is missing OVH DNS plugin for certbot and I learned about it a month after the upgrade, when my Let’s Encrypt certificates expired. (sidenote: Resolution: install certbot and the plugin from PyPI.) I didn’t notice it when inspecting removed packages. Good that I have some experience how communication with server which doesn’t serve valid certificates looks like from the client side, so I could debug it quickly. God forbid if I tried to get anything from the bot spam in nginx logs.