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Hybrid Cloud for Architects
book

Hybrid Cloud for Architects

by Alok Shrivastwa
February 2018
Beginner
290 pages
7h 28m
English
Packt Publishing
Content preview from Hybrid Cloud for Architects

How does DNS work?

The DNS system, on the most simplest levels, consists of a database that contains different kinds of associations. These associations are called DNS records. 

There are several types of DNS records, some of which are mentioned in the following (there are several others out there, but the list should be enough to help us understand):

  • A record: Association between host name and IPv4 address
  • MX record: Association between domain name and the IP address of its SMTP server 
  • CNAME record: Association between a name and another name 
  • PTR record: Reverse association - IP address to hostname 
  • NS record: Association between the domain name and the IP address of its DNS server

In order for us to understand a DNS query and its response, ...

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Publisher Resources

ISBN: 9781788623513