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| | RFC 1034 (rfc1034) - Domain names - concepts and facilities |
 | | A name server may cache structure or set information about any part of the domain tree, but in general a particular name server has complete information about a subset of the domain space, and pointers to other name servers that can be used to lead to information from any part of the domain tree. |
 | | Note that the "cuts" in the name space may be in different places for different classes, the name servers may be different, etc. These rules mean that every zone has at least one node, and hence domain name, for which it is authoritative, and all of the nodes in a particular zone are connected. |
 | | In particular, if the name of the name server is itself in the subzone, we could be faced with the situation where the NS RRs tell us that in order to learn a name server's address, we should contact the server using the address we wish to learn. |
| www.faqs.org /rfcs/rfc1034.html (14693 words) |
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