Network - Domain Name System (DNS)

> NetWork

1 - About

The Domain Name System (DNS) is a hierarchical naming system built on a distributed database for computers, services, or any resource connected to the Internet or a private network.

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.

For example, the domain name www.example.com translates to the addresses 192.0.32.10 (IPv4) and 2620:0:2d0:200::10 (IPv6). This is called a DNS lookup.

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3 - Architecture

4 - Provider

CloudFlare have DNS servers nearer to almost everyone around the world.

5 - Management

5.1 - Local

5.2 - Subnet bind

AnyIP: Bind a whole subnet to your Linux machine

6 - Support

With A DNS problem, don't forget to flush your DNS cache.

6.1 - flush your local linux DNS

To clear your local DNS cache, you have to type

ipconfig /flushdns

This is important when you try to troubleshoot a network problem because if a name is already cached it won't try and resolve the name again.

Network - ipconfig

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7 - Documentation / Reference

network/dns.txt · Last modified: 2019/07/02 11:38 by gerardnico