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The Craft of System Security by Sean Smith, John Marchesini

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5. Network Security

Funny things happen when you let computers talk to one another. Although we can hardly imagine a world in which they don't, worrying about what happens when they do was, until the mid-1990s, the concern only of government agencies, academics, and system administrators. Although they allow us to share massive amounts of information very quickly, computer networks also open our machines up to remote attackers.

The topic of network security covers a range of topics from how to construct an enterprise network to the underlying protocols that allow various components to communicate with one another. Traditionally, the job of securing an organization's network belonged to the system administrator. However, as modern software increasingly ...

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