On: The Top of the DNS Hierarchy

[hardaker]

Minor note: authoritative servers don't have caches. I think you meant recursive resolver (or better "caching resolver" which covers other types of resolvers that may also be caching, such as some stub-resolvers).

[mike_d → hardaker]

Yes, you are correct. I probably put the word auth there because I had just finished setting up a new cluster of authoritative servers.