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DNS Operations

  • Ron Aitchison

Abstract

This chapter describes the operation of a DNS system. Namely, you’ll learn about the following topics:
  • DNS queries: How does your browser find www.example.com? How does your mail software know where to send your outgoing e-mail? Such operations use DNS queries.

  • Reverse mapping: How does your mail software determine your identity? How do you find out who is hacking your system? These types of operations use a technique known as reverse mapping.

  • Zone maintenance: How does the address of your new FTP service get propagated across the Internet? How are your customers notified of any change to your e-mail provider? These operations use zone maintenance.

  • DNS security: How do you prevent your web site from being hijacked? How do you ensure that your e-mail is delivered to you and not someone else? In this chapter, you’ll learn key DNS security concepts.

Keywords

Serial Number Reverse Mapping Zone Transfer IPv4 Address Mail Server 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Ron Aitchison 2011

Authors and Affiliations

  • Ron Aitchison

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