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[ NNSquad ] Re: Comcast files "recommended practices" draft RFC with IETF for DNS Redirection


George,

Glad you're a happy user.  Our privacy policy is actually more flexible (if that's the right word) than our actual practices, which are much more conservative in who we share data with (nobody outside of some select academics under very select circumstances).  We certainly don't sell any data to anyone.  We do log IP address and visited website only when you visit the search result page as a result of hitting the nxdomain-redirection website, but we do not log it on the DNS side of things unless you have your stats turned on.  In practice, this means we have no idea if you go to ESPN.com or Facebook.com (but we would know if you went to facebook.foo because that'd result in hitting our typo website).

And the only partner that sees your IP is our advertising partner Yahoo when we do a request to them to serve you ads and when you click an ad.  They require us to send them the client IP for their anti-fraud stuff (and conceivably for better ad targeting though I have no idea).  We have no way around that requirement, and our privacy policy should be more explicit that Yahoo is the only partner we are talking about, not any random partner as it currently makes it seem like would be possible.

-David

On Jul 10, 2009, at 1:08 PM, George Ou wrote:

David, I have no gripe with OpenDNS and I have been an OpenDNS.org user for the last 2 years.  HOWEVER, you cannot say that you do not log or sell user data “or anything like that”.  OpenDNS collects IP addresses according to their own privacy policy http://www.opendns.com/privacy/ which IMO is a fair exchange for the free DNS service.  This is what your privacy policy states: “For example, when a website visitor searches on OpenDNS, the IP address and query are shared with OpenDNS's advertising partners”.  Again, I believe that is a fair exchange for free DNS service and I choose to use the service, but other people may not choose the service.  But it is inaccurate to say that OpenDNS doesn’t log or sell any user data.
 
 
 
George Ou
 
From: nnsquad-bounces+george_ou=lanarchitect.net@nnsquad.org [mailto:nnsquad-bounces+george_ou=lanarchitect.net@nnsquad.org] On Behalf Of David Ulevitch
Sent: Friday, July 10, 2009 8:50 AM
To: David P. Reed
Cc: 'NNSquad'
Subject: [ NNSquad ] Re: Comcast files "recommended practices" draft RFC with IETF for DNS Redirection
 
Despite what appears to be a troll, I'll reply:
 
1. We're the safest DNS option around.  We're the only DNS service in existence blocking the 0-day MS vulnerability ( http://voices.washingtonpost.com/securityfix/2009/07/microsoft_internet_explorer_ex.html?wprss=securityfix ) and we were the only DNS service that protected users with the Conficker A/B worms from having their infected computers phone home the botnet C&C.  This is in addition to all the other security measures we've placed in the DNS.  It's also worth nothing that outside of DJBDNS (DNS software for workstations) and PowerDNS (a niche DNS software) we were the only major DNS provider on the entire Internet, including ALL major ISPs, that was never vulnerable to the Kaminsky attack of last year.  Unlike any other DNS service or provider in the world, we let our users twiddle the knobs and buttons to get the DNS experience they want.  We don't log and sell their data, or anything like that.
 
2.  Of course people Opt-In to use OpenDNS.  We deliberately don't work with ISPs.  I suggest you try us out for yourself and see.  Or if you're too lazy, just use google to see what folks say about us.  The benefit of having so many users is that a large percentage of them blog and tweet about us.  You'll see the positive reviews dramatically outweigh the negative reviews.
 
As an aside, some of our users do turn of the nxdomain redirection service, and still use us; and that's completely fine.  It's my goal to give users the ability to control their DNS experience as they see fit.  I'm not sure how you missed that as you seem like a fairly smart dude.
 
But like I said at the top, I think this was a troll, so this is my one and only "bite." :-)
 
HAND,
David
 
 
 
On Jul 9, 2009, at 6:05 PM, David P. Reed wrote:


Mr. Ulevitch - I suspect "spin":

1. Please explain the odd meaning of the word "safer" implied by your statement.  If the FTC were to explore whether there is a true "safety" benefit for people, please explain the risk. implied by getting an error message from a browser that the site named does not exist?

2. And for that matter, I am not aware of 12 million people opting "in" to OpenDNS via a legally meaningful customer choice selection where the "benefit" of having names resolved to non-existent sites is explained.  It would be misleading to make the statement you make below if they were "slammed" by ISPs or other companies without their explicit consent beforehand.  Your case would be reasonable if indeed you have records of 12 million individual names who will indeed agree that they chose to use OpenDNS as a matter of free positive action.  I doubt you can produce an auditable list of such names that one can contact to verify your claim, but feel free to produce one.


On 07/09/2009 07:12 PM, David Ulevitch wrote:
I can't speak for the ISPs motivations, but you're right that they are probably driven by profits (though I'd argue they are going to be getting short-term profits and the expense of long-term unhappy customers) but I will point out that there are lots of legitimate reasons people want to do DNS error redirection.  12 million + people have opted to use the services of my company, OpenDNS, to make their internet safer and more reliable.  That's why I was willing to lend a few thoughts to the IETF document.  
 
-David
 
 
On Jul 9, 2009, at 2:06 PM, David P. Reed wrote:




http://tools.ietf.org/html/draft-livingood-dns-redirect-00

I note that this draft RFC proposes practices that routinely return 
*valid* responses to erroneous DNS lookups, and encourage an opt-out 
policy rather than an opt-in policy.

The sole justification is that the default way that a browser such as 
Firefox or IE would present an error message is inadequate for users, 
thus an ISP should take matters into its own hands to fix that cosmetic 
problem, rather than asking the browser vendors to do a better job!

And the side effects identified do not include the impact on http 
requests not generated by typing into web browsers, but instead used as 
part of "web 2.0" service apis and other uses of port 80 that do not 
arise from end users typing into the url bar of their browser.

One might ask why the sole justification given  for this misuse of DNS 
to patch an application weakness is the only one?

And even more so, why this is such an urgent problem that ISPs must fix 
it via a flawed and risky solution, rather than the makers of browsers 
fixing it in the most logical place?

The potential to disrupt non web-browser features is noted in the "draft 
RFC", but instead of a balanced analysis of benefits and costs to other 
uses, the draft is silent.  In fact, the draft refers to this as 
"enhanced" functionality.

I expect the wiser heads at the IETF to prevail....  This is a solution 
to a non-existent "problem", with bad side effects.

While this is not exactly the same as directing a misdialed phone call 
to call a Caribbean phone company number with the consequent  and 
unavoidable billing charge to the user, it seems very close to that sort 
of thing - a surprise to all application developers, and a modification 
to the expected semantics of directory lookup.

  [ I agree with David.  If IETF goes along with this proposal, there
    is something very rotten in Denmark.  What's really amusing about
    the referenced document though is that for all its verbiage in
    which it tries to establish a "need" for such DNS redirect
    services -- mostly focused on highly questionable assumptions
    about malware protection and legal mandates -- it fails to
    mention the primary reason that ISPs implement DNS redirects.

    This is of course use of such DNS diversion services to create
    profit centers, by shunting users to ISP-affiliated search
    engines and affililated ad delivery services, attemping to
    monetize users' interactions with the broader Internet by
    capturing low-level transactional communications to which the ISP
    has privileged access.

        -- Lauren Weinstein
           NNSquad Moderator ]