Introduction
Given the wide array of IP-related exploits that a hacker can make use of, the TCP/IP protocol can often be your greatest network security concern. In addition to the fundamentals of securing TCP/IP, this chapter explores various network models, including the OSI and TCP/IP network models, and how security is implemented with them. You learn about IP packets, how they are structured, and how to secure the data being sent using TCP/IP. Finally, you learn about packet routing and other network-level topics, such as Network Address Translation and Secure Sockets Layer.
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