I've recently inherited some external DNS servers. I am by no means a DNS expert, but they run on UNIX and I am the most qualified on my team for that. They host the zone for my company's internet namespaces. We also use them for external resolution by our internal clients.
The servers are not configured to use forwarders. For zones they are primary for, they answer. For zones they are not authoritative for, they go the root servers. In order for my servers to query the root, do they need to be registered with an organization like register.com? Do they need A records, NS records, or both?
Thanks for helping me understand this.