DNS/RFC/882/authorityについて、ここに記述してください。

Authority and administrative control of domains

Although we want to have the potential of delegating the privileges of name space management at every node,
we don't want such delegation to be required.

Hence we introduce the concept of authority.
  Authority is vested in name servers.
  A name server has authority over all of its domain 
  until it delegates authority for a subdomain to some other name server.

  Any administrative entity that wishes to establish its own domain
  must provide a name server, and have that server accepted by the
  parent name server (i.e. the name server that has authority over
  the place in the domain name space that will hold the new domain).
  While the principles of authority allow acceptance to be at the
  discretion of parent name servers, the following criteria are used
  by the root, and are recommended to all name servers because they
  are responsible for their children's actions:

         1.  It must register with the parent administrator of domains.

         2.  It must identify a responsible person.

         3.  In must provide redundant name servers.

  The domain name must be registered with the administrator to avoid
  name conflicts and to make the domain related information available to other domains.
  The central administrator may have further requirements,
  and a domain is not registered until the central administrator agrees that all requirements are met.

  There must be a responsible person associated with each domain to
  be a contact point for questions about the domain, to verify and
  update the domain related information, and to resolve any problems
  (e.g., protocol violations) with hosts in the domain.

  The domain must provide redundant (i.e., two or more) name servers
  to provide the name to address resolution service.
  These name servers must be accessible from outside the domain (as well as
  inside) and must resolve names for at least all the hosts in the domain.

  Once the central administrator is satisfied, he will communicate
  the existence to the appropriate administrators of other domains
  so that they can incorporate NS records for the new name server into their databases.