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July 26, 2008 12:47 PM PDT

A cheatsheet for defending against the DNS flaw

by Michael Horowitz

In my recent posting, What you need to know about the latest DNS flaw, I suggested using OpenDNS as a defense against the current DNS flaw. OpenDNS provides excellent step by step instructions for modifying the network settings on your computer to use their DNS services.

The only omission in their instructions is the need to make this change for every type of network connection. On a laptop computer, for example, you would need to modify both the network connection for wired Ethernet and also the Wi-Fi network connection. If you use dial-up, that too, needs to be modified.

Chose your Operating System:

The Continue button at the bottom of the instructions invites you to open an account with OpenDNS. This offers useful and free services but opening an account is not required.

See a summary of all my Defensive Computing postings.

Michael Horowitz is an independent computer consultant and the author of several classes on Defensive Computing. He is a member of the CNET Blog Network, and is not an employee of CNET. Disclosure.
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by elehman3 July 29, 2008 9:53 PM PDT
I have my router running DD-WRT setup with OpenDNS for the DNS settings, easy to set up and with an account you can see what blocked web sites are being visited by the clients on your network. I also like the ability to block by keyword, this is great when you have teenage kids trying to find all those vtunnel, porn, etc. sites. Thanks OpenDNS!!
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by chikababe January 20, 2009 7:16 AM PST
great site
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by anurdh65 May 14, 2009 2:55 AM PDT
great site
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About Defensive Computing

Michael Horowitz is an independent computer consultant and the author of several classes on Defensive Computing. He views Defensive Computing as taking steps, when things are running well, to avoid or minimize the inevitable problems down the road. It's about educating yourself to the level where you can make your own intelligent decisions about keeping your computers and data happy and healthy. If you depend on computers, yet are on your own, without an IT department or nearby nerd, this blog's for you. His personal web site is michaelhorowitz.com.

He is a member of the CNET Blog Network and is not an employee of CNET.

Disclosure.

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