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Improve Network Security with DNS Servers

Feb 11, 2010, 21:33 (0 Talkback[s])
(Other stories by David Strom)

"Using an alternative DNS provider, such as OpenDNS or Google's Public DNS, can improve performance and increase security. It's worth taking the time to compare your alternatives.

"The Domain Name System (DNS) is something we all use and depend on, yet don't really pay much attention to; if you have some time to investigate alternatives, you could really enhance your network's performance and security.

"Before I tell you how to do this, let’s have a brief explanation of what DNS is. Think of what a phone book does; it allows you to look up someone’s phone number so long as you know the person’s name. The DNS does something similar for computers. For example, if you type in “google.com” it translates that name into a sequence of four numbers, called an IP address, which functions something like a phone number does. In this case, google.com’s number is 74.125.95.104."

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