Chapter 3. Firewalls Explained

In this chapter, you learn about the differences between hardware and software firewalls and gain the knowledge required to determine which type of firewall is right for you.

You also get an overview of TCP/IP and learn how firewalls try to manage and protect TCP/IP connections to keep your computer or home network safe from outside intruders. This chapter also discusses the types of threats that you expose your computer to when you go online and how firewalls guard against these dangers. The chapter ends by breaking firewalls down into several categories to provide a complete explanation of their functions and features.

  • Examine the difference between hardware and software firewalls

  • Learn about the TCP/IP protocol and ...

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