Look into systemd-resolved config.
https://www.freedesktop.org/software/systemd/man/resolved.conf.html
Not at all the point of this question, but I showed this title to some friends and had them guess what the acronyms meant because. Its always fun to say phrases that 99% of the population can't even begin to understand.
I'm certainly no expert in this area, but I believe this is configured in the browser itself? https://support.mozilla.org/en-US/kb/firefox-dns-over-https
Perhaps there's another way to do it system-wide, but I wouldn't know it.
This refers to DNS over HTTPS. However, I am inquiring about DNS over TLS
Have you tried this?
I am interested in this as well! Two thoughts would be running systemd-resolved or configured coredns to point to an external TLS DNS server in an container and change NetworkManager configuration to point to that service.
I think you use ignition to change system configs like NetworkManager but I don't really know! Just digging into microos myself.
