Section: IT & Technology · NetworkingDifficulty: Easy

DNS

USUK
US/dns/

Domain Name System ”” translates human-readable domain names into IP addresses.

Also: Domain Name System

Definition

The Domain Name System (DNS) is a hierarchical and decentralized naming system for computers, services, or other resources connected to the Internet or a private network. It translates domain names, which are easy for humans to remember, into the numerical IP addresses needed for locating and identifying computer services and devices. DNS functions like the internet's phonebook, resolving queries through a distributed network of authoritative name servers.

Example

When you enter 'www.google.com' in your browser, a DNS server resolves it to Google's IP address so your browser can connect.

Usage Examples

  1. 1

    The team applied dns best practices to improve their networking outcomes significantly.

  2. 2

    Understanding dns is essential for anyone building a career in IT & Technology.

When & How to Use

Use 'DNS' when working in Networking contexts where the domain name system (dns) is a hierarchical and decentralized naming system for computers, services, or other resources connected to the internet or a private network.

  • Applying dns principles during a networking project or initiative
  • Explaining dns to a junior team member or stakeholder unfamiliar with IT & Technology
  • Evaluating options or proposals using dns as a decision-making criterion

Etymology & Origin

The term 'DNS' derives from professional usage and entered IT & Technology professional usage as the field formalised in the 20th century.

History & Evolution

The concept of dns has evolved alongside IT & Technology. Early practitioners relied on informal methods; structured approaches emerged with the professionalisation of networking in the mid-20th century. Today, dns is a standard part of IT & Technology practice globally.

Synonyms

  • domain resolver
  • name resolver
  • internet phonebook

Images

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Video

  • ip-address
  • domain-name
  • nameserver
  • dns-record

Dictionary Entry

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