Cisco® Secure Internet Security Solutions

Internet Threats

The Internet is a collection of privately and publicly owned hosts. Virtually anyone owning a computer is able to get onto the Internet. There are hundreds of thousands of individuals on the Internet at any given time. Although most of these individuals have no ill intentions, there are a number who, for one reason or another, choose to try and penetrate or disrupt services on corporate networks. Sometimes networks are attacked by a technique where an innocent third party is used to launch the attack. For example, an individual whose system has been infected by a worm inadvertently passes along this worm to all known e-mail contacts. This book is designed to show the administrator how to design networks that are resistant to ...