Domain Name Server Computer Science

The domain name system dns is a hierarchical decentralized naming system for computers services or other resources connected to the internet or a private network it associates various information with domain names assigned to each of the participating entities.

Domain name server computer science. Also the dns server is used to translate the access point name apn into the ggsn ip address. It may optionally be used to allow the ue to use logical names instead of physical ip addresses. In order for dns to function properly it needs to be aware of both the ip address and the corresponding domain name of each computer on its network. Domain is a very popular term used in computer and information technology.

As seen above not every dns stores every address on the internet. In terms of reconnaissance gaining full access to a company s dns server is like finding a pot of gold at the end of a rainbow. In order to reach cse dtu in we have to ask the root dns server then it will point out to the top level domain server and then to authoritative domain name server which actually contains the ip address. It can be maintained by organization or service provider.

A dynamic host configuration protocol server is used to manage the allocation of ip configuration information by automatically assigning ip addresses to systems configured to use dhcp. Join doug winnie for an in depth discussion in this video the domain name server and dns part of computer science principles. For example the bbc website s address is 151 101 128 81. In this tutorial we will learn domain meaning and types with the purpose and difference with the domain and hosting.

Using that ip address your computer can then locate the computer hope web page and forward that information to your browser. Below is a visual example of how dns works. Authoritative name servers this is organization s dns server providing authoritative hostname to ip mapping for organization servers. Names can be created.

Quozr provides a free space and great functionality to deliver any school college or university course with assessment modules and much more. If a domain name is not found the server may query other domain servers to obtain its address. Dns is the main system over the internet that uses the name server. Users generally do not know or misinterpret the domain keyword meaning.