Dig on www.wikipedia.org fails, symptom of larger issues?

Networking DNS
3

Hey Andreas, thanks for responding to me.

  1. I was experiencing more SERVFAILs when I was using udp, so I switched over to TCP since I have a relatively small number of clients
  2. My upsteam DNS are quad9 and openDNS
  3. My default firewall options are allowed, not blocked
  4. N/A

Thanks a bunch!