Domain Name System Definition And Example

This example depicts a domain name system dns server that operates over a firewall to protect internal data from the internet while allowing internal users to access data on the internet.

Domain name system definition and example. Short for domain name system dns is an internet service that translates domain names to ip addresses. Computing internet the distributed database sometimes including all the supporting hardware or software infrastructure the internet uses to translate hostnames into ip numbers and provide other domain related in. Domain names are alphabetic and therefore easy to remember but the internet is based on numeric ip addresses so a dns server is required for computers to communicate with one another. This configuration accomplishes this protection by setting up two dns servers on the same system i platform.

The domain name system maps the name people use to locate a website to the ip address that a computer uses to locate a website. The dns can be quickly and transparently updated allowing a service s location on the network to change without affecting the end users who continue to use the same hostname. There are several domain names available. Domain names are used to identify one or more ip addresses.

Domain names are used in urls to identify particular web pages. Dns which stands for domain name system is used as the medium to translate domain names to their respective ip addresses when a client initiates a request query. What is the definition of dns. An often used analogy to explain the domain name system is that it serves as the phone book for the internet by translating human friendly computer hostnames into ip addresses.

A web domain name always ends with an. Domain name is a symbolic string associated with an ip address. A website or may be a private intranet. Updated on november 27 2019 in simple terms a domain name system dns is a collection of databases that translate hostnames to ip addresses.

Some of them are generic such as com edu gov net etc while some country level domain names such as au in za us etc.