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Trace: • syntax

dns

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Source: https://www.cloudflare.com/learning/dns/what-is-dns/
====== DNS ======
Domain Name System is the "phonebook of the Internet". It associates domain names with [[ip-address|ip addresses]]. 

The unique perk of DNS is the ability to set up a distributed service. Users refer to the nearest DNS server, so different users can receive different resolutions for the same domain name.

The servers involved in resolving the domain name:
  - DNS recursor (for example, ISP)
  - Root nameserver
  - TLD nameserver (it hosts the last portion of the hostname)
  - Authoritative nameserver
  
{{ :dns-root-server.png?direct&800 |}}

Nodes contain caches, so it's not always necessary to contact the authorative nameserver.

dns.txt · Last modified: 2025/10/04 06:46 by plida

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