Firewall Fundamentals
By
Wes Noonan
,
Ido Dubrawsky
...............................................
Publisher:
Cisco Press
Pub Date:
June 02, 2006
Print ISBN-10:
1-58705-221-0
Print ISBN-13:
978-1-58705-221-7
Pages:
408
Table of Contents
|
Index
Copyright
About the Authors
About the Technical Reviewers
Acknowledgments
Icons Used in This Book
Command Syntax Conventions
Introduction
Part I: Introduction to Firewalls
Chapter 1. Introduction to Firewalls
What Is a Firewall?
What Can Firewalls Do?
What Are the Threats?
What Are the Motives?
Security Policies
Determining If You Need a Firewall
Summary
Chapter 2. Firewall Basics
Firewall Taxonomy
Firewall Products
Firewall Technologies
Open and Closed Source Firewalls
Summary
Chapter 3. TCP/IP for Firewalls
Protocols, Services, and Applications
Internet Protocol (IP)
Transmission Control Protocol (TCP)
User Datagram Protocol (UDP)
Internet Control Message Protocol (ICMP)
Addressing in IP Networks
Network Address Translation (NAT)
Broadcast and Multicast
IP Services
IP Routing
Applications Using IP
Summary
Part II: How Firewalls Work
Chapter 4. Personal Firewalls: Windows Firewall and Trend Micro's PC-cillin
Windows Firewall and Windows XP
Trend Micro's PC-cillin Firewall Feature
Summary
Chapter 5. Broadband Routers and Firewalls
How Broadband Routers and Firewalls Work
Linksys Broadband Routers/Firewalls
Linksys Requirements
How the Linksys Router/Firewall Works
Configuring Linksys
Linksys Checklist
Summary
Chapter 6. Cisco PIX Firewall and ASA Security Appliance
PIX/ASA Features
Choosing Between the PIX and the ASA
Cisco PIX Firewall and ASA Models
How the PIX/ASA Firewall Works
Configuring the Cisco PIX/ASA
PIX/ASA Checklist
Summary
Chapter 7. LinuxBased Firewalls
NetFilter Features
NetFilter Requirements
How NetFilter Works
Configuring NetFilter
NetFilter Checklist
Summary
Chapter 8. Application Proxy Firewalls
Application Layer Filtering
Proxy Server Functionality
Limitations of Application Proxy Firewalls
Microsoft ISA Server 2004 Firewall
Summary
Chapter 9. Where Firewalls Fit in a Network
Different Types of Office Requirements
Single-Firewall Architectures
Dual-Firewall Architecture
The Firewall System
Where Personal/Desktop Firewalls Fit in a Network
Where Application Firewalls Fit in a Network
Firewalls and VLANs
Using Firewalls to Segment Internal Resources
High-Availability Firewall Designs
Summary
Part III: Managing and Maintaining Firewalls
Chapter 10. Firewall Security Policies
Written Security Policies
Firewall Policies/Rulesets
Summary
Chapter 11. Managing Firewalls
Default Passwords
Maintaining the Underlying Platform
Firewall Management Interface
Management Access
Common Firewall Management Tasks
Summary
Chapter 12. What Is My Firewall Telling Me?
Firewalls and Logging
Firewall Log Review and Analysis
Firewall Forensics
Summary
Chapter 13. Troubleshooting Firewalls
Developing a Troubleshooting Checklist
Basic Firewall Troubleshooting
Advanced Firewall Troubleshooting
Troubleshooting Example
Summary
Chapter 14. Going Beyond Basic Firewall Features
Content Filtering
Performing Application Filtering
Intrusion Detection and Prevention
Virtual Private Networks
Summary
Endnotes
Part IV: Appendixes
Appendix A. Firewall and Security Tools
Common Troubleshooting Tools
Logging and Log-Analysis Tools
Security-Testing Tools
Appendix B. Firewall and Security Resources
Firewall-Specific Information
General Security Information
Additional Reading
Index
