If you are interactively logged on to the console of a server using say a browser, then the client side resolver will construct a recursive query to the DNS address in the first entry of the NIC properties, basically asking, "I don't care how you get the answer, I just want an ...
Here's the first lookup with the -v switch added (increase verbosity level), to show the iterative resolution path taken through the DNS hierarchy:$ resolve.py -v www.seas.upenn.edu AAAA ZONE: . TTL: Delegation: 518400 NS: a.root-servers.net. 198.41.0.4 2001:503:ba3e::2:30 NS: ...