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Computer surveillance and security covers a wide range of ways to keep you and your information safe. Learn about firewalls, zombie computers, hackers and workplace surveillance.
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Please copy/paste the following text to properly cite this How Stuff Works article:
Tyson, Jeff. "How Firewalls Work." 24 October 2000. HowStuffWorks.com. <http://computer.howstuffworks.com/firewall.htm> 11 May 2008.
by
Jeff Tyson
Inside This Article
1.
Introduction to How Firewalls Work
2.
What It Does
3.
Making the Firewall Fit
4.
What It Protects You From
5.
Proxy Servers and DMZ
6.
Lots More Information
7.
See all
Computer & Internet Security
articles
Lots More Information
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PREVIOUS
Inside This Article
1.
Introduction to How Firewalls Work
2.
What It Does
3.
Making the Firewall Fit
4.
What It Protects You From
5.
Proxy Servers and DMZ
6.
Lots More Information
7.
See all
Computer & Internet Security
articles
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Please copy/paste the following text to properly cite this How Stuff Works article:
Tyson, Jeff. "How Firewalls Work." 24 October 2000. HowStuffWorks.com. <http://computer.howstuffworks.com/firewall.htm> 11 May 2008.
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