This preview shows page 1. Sign up to view the full content.
Unformatted text preview: Domain Name System
(DNS) DNS Server Service
Overview of Domain Name System
What Is a Domain Namespace?
Standards for DNS Naming Overview of Domain Name System
Domain Name System (DNS) is a hierarchical, distributed database
that contains mappings of DNS domain names to various types of
data, such as IP addresses
DNS is the foundation of the Internet naming scheme and the
foundation of an organization’s naming scheme
DNS supports accessing resources by using alphanumeric names
InterNIC is responsible for delegating administrative responsibility
for portions of the domain namespace and for registering domain
DNS was designed to solve issues that arose when there was an
increase in the: Number of hosts on the Internet Traffic generated by the update process Size of the Hosts file What Is a Domain Namespace?
Top-Level Domain net org Company1 Second-Level Domain Subdomains com west FQDN:
server1.sales.south.company1.com south sales east Host: server1 Standards for DNS Naming The following characters are valid for DNS names:
The underscore (_) is a reserved character What Are the Components of a DNS Solution? Resource
View Full Document
This note was uploaded on 10/15/2011 for the course COMPUTER E EC-321 taught by Professor Liaqatali during the Spring '11 term at College of E&ME, NUST.
- Spring '11