What an amazing world we live in! Almost anything you can imagine
can be researched, compared, admired, studied, and in many cases,
bought, with the click of a mouse. The Internet has changed our
lives, putting a world of opportunity before us. Unfortunately, it
has also put a world of opportunity into the hands of those whose
motives are less than honorable. A firewall, a piece of software or
hardware that erects a barrier between your computer and those who
might like to invade it, is one solution.

If you've been using the Internet for any length of time,
you've probably received some unsavory and unsolicited
e-mail. If you run a business, you may be worried about the
security of your data and your customers' privacy. At home,
you want to protect your personal information from identity thieves
and other shady characters. Firewalls For
Dummies¯® will give you the lowdown on
firewalls, then guide you through choosing, installing, and
configuring one for your personal or bus iness network.

Firewalls For Dummies¯® helps you
understand what firewalls are, how they operate on different types
of networks, what they can and can't do, and how to pick a
good one (it's easier than identifying that perfect melon in
the supermarket.) You'll find out about

Developing security policies
Establishing rules for simple protocols
Detecting and responding to system intrusions
Setting up firewalls for SOHO or personal use
Creating demilitarized zones
Using Windows or Linux as a firewall
Configuring ZoneAlarm, BlackICE, and Norton personal
firewalls
Installing and using ISA server and FireWall-1

With the handy tips and hints this book provides, you'll
find that firewalls are nothing to fear - that is,
unless you're a cyber-crook! You'll soon be able to
keep your data safer, protect your family's privacy, and
probably sleep better, too.

Auteur

Brian Komar is a native of Canada and makes his living as a Public
Key Infrastructure (PKI) consultant, speaker, author, and trainer.
Brian speaks at conferences around the world on network design and
security topics. His consulting practice focuses on PKI design and
architecture projects and on research assignments specializing in
interoperability between different vendor's security products.

Ronald Beekelaar is a native of The Nethrellands, makes
his living as network security consultant, author, and trainer.
Ronald frequently trains network administrators on network design
and enterprise security topics. He writes articles for several
computer magazines, mostly about operating systems and security
issues.

Joern Wettern, PhD, is a native of Germany and is a network
consultant and trainer. Joern has also developed a range of
training materials for a large software publisher, and these
materials are used to train thousands of network administrators
around the world. He frequently travels to several continents to
speak at computer conferences.

Résumé
What an amazing world we live in! Almost anything you can imagine can be researched, compared, admired, studied, and in many cases, bought, with the click of a mouse. The Internet has changed our lives, putting a world of opportunity before us. Unfortunately, it has also put a world of opportunity into the hands of those whose motives are less than honorable. A firewall, a piece of software or hardware that erects a barrier between your computer and those who might like to invade it, is one solution. If you've been using the Internet for any length of time, you've probably received some unsavory and unsolicited e-mail. If you run a business, you may be worried about the security of your data and your customers' privacy. At home, you want to protect your personal information from identity thieves and other shady characters. Firewalls For Dummies® will give you the lowdown on firewalls, then guide you through choosing, installing, and configuring one for your personal or bus iness network.

Firewalls For Dummies® helps you understand what firewalls are, how they operate on different types of networks, what they can and can't do, and how to pick a good one (it's easier than identifying that perfect melon in the supermarket.) You'll find out about

Developing security policies
Establishing rules for simple protocols
Detecting and responding to system intrusions
Setting up firewalls for SOHO or personal use
Creating demilitarized zones
Using Windows or Linux as a firewall
Configuring ZoneAlarm, BlackICE, and Norton personal firewalls
Installing and using ISA server and FireWall-1
With the handy tips and hints this book provides, you'll find that firewalls are nothing to fear that is, unless you're a cyber-crook! You'll soon be able to keep your data safer, protect your family's privacy, and probably sleep better, too.

Contenu

Introduction.

Part I: Introducing Firewall Basics.

Chapter 1: Why Do You Need a Firewall?

Chapter 2: IP Addressing and Other TCP/IP Basics.

Chapter 3: Understanding Firewall Basics.

Chapter 4: Understanding Firewall Not-So-Basics.

Chapter 5: "The Key Is under the Mat" and Other
Common Attacks.

Part II: Establishing Rules.

Chapter 6: Developing Policies.

Chapter 7: Establishing Rules for Simple Protocols.

Chapter 8: Designing Advanced Protocol Rules.