Use network sniffers to defend your network against intrusion

Even properly secured and hardened systems that have been tested for security vulnerabilities will eventually come under attack or experience other security issues. Fortunately, tools are available (some even for free) that can help you respond appropriately to network security challenges. Learn to use open-source network sniffers to defend your network in this chapter download from Open Source Security Tools: The Practical Guide to Security Applications. Chapter coverage includes:

• Network sniffer fundamentals
• Ethernet history and operation
• How to do safe and ethical network sniffing
• Sample sniffer configuration
• Network sniffer applications
• Using Tcpdump, WinDump, and Wireshark (formerly Ethereal)

Title: Open Source Security Tools: The Practical Guide to Security Applications
Author: Tony Howlett
Publisher: Prentice Hall
Chapter 6: Network Sniffers
ISBN: 0-321-19443-8; Copyright 2005 Prentice Hall. All rights reserved.
Used with permission from the publisher. Available from booksellers or direct from Prentice Hall