Maximum Security, Third Edition

Chapter 10. Firewalls

Security is a process, not a product.

—Bruce Schneier, Counterpane Labs

In This Chapter

• What Is a Firewall?

• Other Features Found in Firewall Products

• Firewalls Are Not Bulletproof

• A Look Under the Hood of Firewalling Products

• Pitfalls of Firewalling

• Firewall Appliances

• Building Firewalls in the Real World

• Sample Failures of Firewall Technology

• Building a Firewall with the Firewall Toolkit (FWTK)

• Commercial Firewalls

This chapter covers firewalls, what they are, how they work, and who makes them.

Firewalls have been around for years, and now serve as pillars for the information security strategies of most organizations. Although firewalls are fundamentally very important, any organization that relies entirely upon a firewall to fulfill ...