Understanding Dns; Dns Hierarchy - Novell NETWARE 6-DOCUMENTATION Manual

Understanding DNS

DNS Hierarchy

DHCP server unless a DHCP/BOOTP forwarder that is on the same computer
as the client has been configured to forward the addresses.
The Subnet Pool object contains a list of subnet object references and
comments.
The Domain Name System (DNS) is a distributed database system that
provides hostname-to-IP resource mapping (usually the IP address) and other
information for computers on an internetwork. Any computer on the Internet
can use a DNS server to locate any other computer on the Internet.
DNS is made up of two distinct components, the hierarchy and the name
service. The DNS hierarchy specifies the structure, naming conventions, and
delegation of authority in the DNS service. The DNS name service provides
the actual name-to-address mapping mechanism.
For more information, refer to:
"DNS Hierarchy" on page 27
"DNS Name Service" on page 31
"Traditional DNS" on page 34
"DNS within eDirectory" on page 36
DNS uses a hierarchy to manage its distributed database system. The DNS
hierarchy, also called the domain name space, is an inverted tree structure,
much like eDirectory.
The DNS tree has a single domain at the top of the structure called the root
domain. A period or dot (.) is the designation for the root domain. Below the
root domain are the top-level domains that divide the DNS hierarchy into
segments.
Listed below are the top-level DNS domains and the types of organizations
that use them. Below the top-level domains, the domain name space is further
divided into subdomains representing individual organizations.
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Understanding