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Introduction to Computer Networks and Cybersecurity by J. David Irwin, Chwan-Hwa Wu

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Chapter 2

DNS and Active Directory

The learning goals for this chapter are as follows:

  • Understand the fundamental and critical role play by the Domain Name Service (DNS)
  • Learn the manner in which Resource Records are employed in a DNS query
  • Learn the use and format of the DNS protocol
  • Understand the purpose and use of Active Directory (AD): its application and structure
  • Explore the meaning and use of AD objects and schema
  • Learn the relationship between DNS and AD

2.1 The Domain Name Service (DNS)

2.1.1 Overview

It is hard to overstate the importance of the Domain Name Service (DNS). Historically, the hosts file located on a local machine had to be maintained and updated by an administrator in order to facilitate the resolution of domain names. ...

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