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CHAPTER 4 Firewall Practical Applications
Summary
The type of firewall that is most appropriate for a network depends, at least in part, on the size of the
network. Within each size category there are a number of options for a firewall solution, each with its
own advantages and disadvantages.
It is important to consider both the technical merits of a firewall solution and the ease of use. A firewall
solution’s degree of user-friendliness is largely contingent upon the skill set of the support staff that
will implement it. Administrators also must balance cost versus benefit. Clearly, the more expensive
firewalls have some impressive features, but they may not be necessary for an organization and may
negatively impact its overall IT budget.
May I suggest another element is the overall operation of firewall systems. My thoughts are to present
a discussion on THE person who has responsibility to manage. It has been my experience too often
that our systems of protection are relegated to a person who may not be analytically trained to discern
various intricacies of firewall setup and maintenance. It is one thing to set up a firewall and quite
another to manage a firewall. We are not only limited or at risk by the equipment and person but also
by company policy. For your consideration.
Test Your Skills
MULTIPLE CHOICE QUESTIONS
1. Which of the following is a common problem when seeking information on firewalls?
A. It is difficult to find information on the web.
B. Unbiased information might be hard to find.
C. Documentation is often incomplete.
D. Information often emphasizes price rather than features.
2. Which of the following is not a common feature of most single PC firewalls?
A. Software-based
B. Packet filtering
C. Ease of use
D. Built-in NAT
3. What is ICF?
A. Windows XP Internet Connection Firewall
B. Windows XP Internet Control Firewall
C. Windows 2000 Internet Connection Firewall
D. Windows 2000 Internet Control Firewall