Hi all, I have noticed a strange behaviour for pihole. It works well for some days and then out of nowhere starts responding with servfail to all dns requests. To note: DNSSEC is disabled and it is forwarding to another local dns server after.
Yup it was correct in UTC. Set the timezone, but that was simply one hour off (UTC+1).
For now I'm trying using Cloudflare https dns and I'll see how it goes, as well as first forwarding all of the requests to the other local server so that I can have a fallback ready.
Edit: forgot to mention it is running in an ubuntu 18.04 vm.