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OpenDNS - Does it improve security?


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5 replies to this topic

#1 stillwaters

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Posted 26 November 2009 - 03:26 PM

Hi!

I heard getting OpenDNS improves security, especially for "drive by downloads. Is that true? What about the free version? It seems the anti malware protection is only for Enterprise. My ISPs DNS seems to be fine, so my main reason to get it would be security.

Thanks for the help!

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#2 stillwaters

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Posted 10 December 2009 - 04:22 PM

bump, anyone?

#3 Romeo29

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Posted 11 December 2009 - 06:34 AM

Free version blocks only phishing and botnet sites at the DNS level.

#4 stillwaters

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Posted 13 December 2009 - 02:01 AM

Thanks for replying.

I understand OpenDNS is a service that replaces your ISPs DNS servers with theirs. I understand how they block phishing - they simply remove known phishing IP addresses from their servers. But how do they block botnets? Can they stop a command and control IRC server from connecting to your computer? Or do they just block sites with known exploits to prevent your computer being infected by a backdoor that will make it part of a botnet? I'd appreciate it if anyone could clarify.

Thank You!

Edited by stillwaters, 13 December 2009 - 06:54 AM.


#5 Romeo29

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Posted 13 December 2009 - 04:50 AM

They detect if your computer is requesting or making DNS requests to known botnet servers. They block such requests thus taking down a botnet. This is effective but may not be equal to having an anti-virus or anti-spyware app at your local computer.

#6 stillwaters

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Posted 13 December 2009 - 06:55 AM

Thank You! :thumbsup:

Now I understand. That's what I wanted to know.




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