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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 Virtual Private Networks Work." 15 February 2001. HowStuffWorks.com. <http://computer.howstuffworks.com/vpn.htm> 11 May 2008.
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Jeff Tyson
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Cisco Secure PIX Firewall
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Cisco Secure PIX Firewall
An amazing piece of technology, the PIX (private Internet exchange) firewall combines dynamic network address translation, proxy server, packet filtration, firewall and VPN capabilities in a single piece of hardware.
 Photo courtesy Cisco Systems, Inc. The Cisco PIX Firewall |
Instead of using Cisco IOS, this device has a highly streamlined OS that trades the ability to handle a variety of protocols for extreme robustness and performance by focusing on IP.
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Please copy/paste the following text to properly cite this How Stuff Works article:
Tyson, Jeff. "How Virtual Private Networks Work." 15 February 2001. HowStuffWorks.com. <http://computer.howstuffworks.com/vpn.htm> 11 May 2008.
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