In all fairness, it has been more than a week, but due to messing around with logging and accidentally clearing it a few times (whoops!), I didn't have a week worth of data until yesterday.
For the past week, I've been tinkering a bit with Pi-hole, including working with stuff there's no official guides for. There's quite a few things I noticed while messing around with Pi-hole, so I figured I'd write a post about it.
This post aims to present an alternative way to generate SSL certificates for your pihole web interface. This is specifically targeted at people without a FQDN (Fully Qualified Domain Name), regardless of whether pihole is hosted locally or on a VPS. Note that this has only tested on a locally hosted pihole instance, running on a Raspberry Pi 3B+. As usual, apply common sense before running commands from strangers on the internet - just because it worked on my system, doesn't necessarily mean it'll work in general. While we're at it, if this is properly configured, it shouldn't cause any problems. Even an invalid SSL certificate would just affect your connection, and not something like SSH or pihole in general.