Essay about Network Security

5816 Words May 2nd, 2014 24 Pages
Fundamental Principles of Network Security

By Christopher Leidigh

White Paper #101

Executive Summary
Security incidents are rising at an alarming rate every year. As the complexity of the threats increases, so do the security measures required to protect networks. Data center

operators, network administrators, and other data center professionals need to comprehend the basics of security in order to safely deploy and manage networks today. This paper covers the fundamentals of secure networking systems, including firewalls, network topology and secure protocols. Best practices are also given that introduce the reader to some of the more critical aspects of securing a network.

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Since there is no such thing as “the only way to approach security”, it is left up to the reader / implementer to best judge what measures are appropriate.

The people problem
People are truly the weakest link in any security schema. Most people are not careful about keeping secrets such as passwords and access codes that form the basis for most secure systems. All security systems rely on a set of measures employed to control access, verify identity and protect disclosure of sensitive information. These measures usually involve one or more “secrets”. Should a secret be revealed or stolen

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then the systems that are protected by these secrets can be compromised. It may seem like a terribly obvious statement, but most systems are compromised in very basic ways. Leaving a Post-It note with a system password stuck to the side of a computer monitor may seem foolish, but many people in fact do such things. Another example, which is only slightly less obvious, is

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