Fung

Network Security Technologies, Second Edition presents key security technologies from diverse fields, using a hierarchical framework that enables understanding of security components, how they relate to one another, and how they interwork.

As the role of enterprise networks keeps expanding in its support of both internal and external connectivity in the form of emerging Internet, intranet, and extranet applications, network components are being exposed more and more seriously to malicious as well as unintentional security breaches. Network security becomes an ever increasingly critical element of enterprise network designs and implementations. A typical network security exercise involves the planning and design of a company’s networks and information technology (IT) security infrastructures so as to protect its valuable applications, sensitive data, and network resources from unauthorized access that results in either intentional or unintentional misuse and malicious alterations of the company’s assets.