Take the 2-minute tour ×
Information Security Stack Exchange is a question and answer site for Information security professionals. It's 100% free, no registration required.

Whether I'm using a normal internet connection setup, or tunnelling it through an anonymizing VPN or through TOR, what information of mine is revealed to whatever DNS server that I choose (e.g. Google Public DNS)?

Would I gain any privacy benefits if I created and used my own DNS server (either on my own dedicated linux server on the internet or on my own PC system locally)?

But on the other hand, might there be any privacy disadvantage to using my own DNS server that I'm not thinking of? (Like some form of leakage/attack whereby the DNS server you use is exposed to some website - and if you use something like TOR or a VPN, the IP address of your own DNS server has been leaked and so your anonymity is still compromised, in that way?)

I am not so concerned about security (for example someone hacking my (amateurly-protected) DNS server and redirecting domains to phishing IPs to steal my information or identity), but mainly privacy.

Thanks.

share|improve this question
add comment

1 Answer

So, if your own DNS server is on your LAN, it'll still be forwarding requests to other DNS servers, revealing your request to them. So the remote DNS server will see your IP rather than the public DNS service IP.

As far as TOR is concerned, you can route DNS over TOR which will make the TOR exit gateway the only one seen by the public DNS provider.

If you're curious about what Google Public DNS does with your information, I suggest reading the privacy policy. You could, of course, assume that Google lies in their privacy policies, depending on your level of paranoia.

share|improve this answer
    
Sure Google lies. Facebook lied too blogs.lawyers.com/2012/08/… I'm sure NSA loves DNS requests ;) –  baptx Jan 17 at 16:38
add comment

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.