Just passin’ through
I really really like Fedora Server, but any RHEL derivative is my go to for servers. I use Rocky Linux when I need something closer to RHEL, and Fedora server for pretty much everything else. I highly recommend Cockpit as well (main reason I like Fedora server) as it has allowed me to so easily manage all of my servers from a single point.
I’ve spoken with a colleague who’s more experienced with physical networking (my work is mostly cloud based) and it seems the issue is that i have a dumb switch in-between my server and my managed router/switch so nothing is crossing VLANs properly. We figured this out because I did a packet capture on my network and did two DNS queries, one from my machine on my VPN network to the DNS server and one from the docker container to the DNS server. Both sent the same query except my machine got a response and the container did not. I am a bit skeptical that it’s purely a VLAN issue, but this DNS server hasn’t had any other issues with other subnets that aren’t dealing with VLANs so when you’ve eliminated the impossible all that remains is the improbable.