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firewall: A firewall is a network security system, either hardware or software based, that controls incoming and ...

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Jan 26, 2001


Our sister site provides this definition of the term firewall. Continue Reading


By Kara Gattine Get Started Sep 18, 2014

Types of firewalls: An introduction to firewalls

To keep your network data secure, start with this introduction to firewalls. This tutorial provides an overview of what firewalls are and what benefits they provide, how they work and different firewall types. Get ... Continue Reading


Apr 08, 2002

Quiz: Firewalls

Test your knowledge of firewall vocabulary. Continue Reading


Problem Solve Jul 16, 2001

Firewall terminology

Learn the terms you need to know to talk firewalls. Continue Reading

By Margaret Rouse Aug 12, 2008

Quiz: Firewalls

A quiz about firewalls: A server that acts as this kind of node often also acts as a proxy server and a firewall server. Continue Reading

News Jun 16, 2008

Introduction to firewalls

What is a network firewall? What types of firewalls are there, and which kind best protects your company's data? All of these questions, and more, are answered in our network security firewall guide. Continue Reading


News Sep 12, 2002

XML firewalls dig deeper than traditional firewalls

XML firewalls dig deeper than traditional firewalls Continue Reading


By Puneet Mehta Problem Solve Sep 08, 2005

Placement of the firewall

In this expert response, Puneet Mehta tells us where the placement of the firewall should be architecturally. Continue Reading


Problem Solve Oct 05, 2004

Troubleshooting firewalls

How to troubleshoot your firewall's settings when it is preventing a client or server connection. Continue Reading


Aug 27, 2008

Validated firewalls

Firewalls need to be checked and validated to ensure proper function before they are put into production. This section of the chapter excerpt will deal with validating and maintaining firewalls. Continue Reading