DNS Private Name Registration

We have now reviewed the hierarchical nature of the DNS name space and the authority structure that administers it. Name registration begins with the generic and country code TLDs within the root of the name hierarchy, then proceeds to second-level domains within the TLDs and then lower-level subdomains below those. As we progress down the name tree, we move from the most general, public authority (IANA/ICANN, which runs all of DNS), through the high-level TLD authorities, and eventually down to the level of individual organizations, corporations, and individuals.

This dividing line between public authorities and private authorities occurs in many different places in the name structure. Wherever it does occur, below ...

Get TCP/IP Guide now with O’Reilly online learning.

O’Reilly members experience live online training, plus books, videos, and digital content from 200+ publishers.