A secure network is critical for the survival and success of many businesses. The rapid evolution of client/server networks, the phenomenal increase in the number of networks attached to the Internet, the widespread use of web browsers, and the growing commerce on the internet each require that communication networks are secure. Security concerns for private networks as well as for the Internet range from exposures to computer viruses to break-ins by an intruder on the Internet.
The purpose of this book was to present the concepts in security and describe approaches to securing the networks. It introduced the risks to networks, followed by a review of basic security concepts such as passwords and encryption. For each concept, the book also provided an overview of the existing and emerging technologies. In particular, it focused on various security aspects of attaching to and communication over the Internet.
This book serves the growing need to understand and enhance the security of networks. The audience for this book is the computing professional who has the need or desire to understand the risks to networks and the approaches to addressing them.
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