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Chapter 1. Hardware And Gear

Chapter 1. Hardware And Gear

This book is designed for those who need to better understand the functionality of security tools. Its objective is to help you learn when and how specific tools can help you secure your network.

You may be wondering what security is. Security typically is defined by three core concepts: confidentiality, integrity, and availability. There is also the question as to how much security is enough. Some might say that you can never have enough security, yet in reality it is about balancing the value of the asset and the cost of protection. One thing that is agreed upon about security is the value of defense in depth. Simply stated, security controls should be built in layers. For example, renaming the administrator account is a good idea, but so too is restricting access to the account, as well as adding complex passwords and performing periodic audits of the log files.


  

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