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Absolute Beginner’s Guide to Networking, Fourth Edition by Joe Habraken

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Chapter 20. A Network Security Primer

In this chapter

  • Understanding user accounts and passwords

  • Working with resource permissions

  • Using groups to control resource access

  • Protecting against computer viruses

  • Understanding worms and Trojan horses

  • Becoming familiar with the types of outside network attacks

  • Understanding IPSec

  • Working with firewalls

In this chapter, we take a look at network security. The issues related to securing a network have changed dramatically over the last decade, particularly due to the fact that most LANs are now connected (in some way) to the Internet.

Network security was once a very company-centric pursuit. It revolved around securing resources and information on an isolated network. Security concerns had to do mainly with the assigned ...

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