This server runs Debian’s Testing release. Yes, Testing changes a lot and is not meant for long-term production servers. But I like to be a little more up-to-date on the software packages, and there are times when Debian Stable is too far out of date for what I need or want to run on this server. I do use it as a shell server too. And yes, I know bastion hosts, one “process” per server. That assumes one has a budget for multiple servers.
Anyway, I updated the server, and it pulled PHP 8.1. Previously I was running PHP7.4. Well, something interesting happened during the upgrade. I rebooted the server to get the new kernel loaded, and when everything came back up, I had the “White Page of Death” on the WordPress page. This is a self-hosted server, no CPanel, phpAdmin, or anything like that. If I have to fix a problem, it’s the command line and me.