On 07/23/2012 12:53 PM, Wojciech Puchar wrote:
Could be by recording the info used by a dns resolver they manage.  I
suspect

exactly what i thing they do.

Actually, they give a pretty good idea how they do what they do on the website:
"How it works?
    We have a system running in background that monitor changes on .COM
and .NET domains, this system update our domains nameserver database monthly."

all public info...
Though really, doesn't explain the omissions very well.

ummmm.... sorry?
that's not how DNS works.  Anyone querying a domain will know who
serves that domain.
that's true.

But anyone knowing one of my nameserver should not be able to know all
my domains.

That may be your wish, but that wasn't how the Internet was built.

the solution seems to not keep domains of more than a few owners on
primary/secondary single DNS.

not entirely practical, of course.

Still i don't really understand why people do such a "services" that are
pure spying.

Unfortunately, in the Internet of the 1990s, 2000s and later, build as if everyone knows everything about you and your systems. If you are right, you are safer. if you are wrong, you are still safer.

Sites like this do a service by reminding you how public some of your information is. Don't get pissed off at the guy who tells you your fly is open...just take it as additional knowledge you didn't previously have, and use that information to decide how you act before you get up on stage. (sometimes I wonder how well my analogies "port" to people for whom English is a non-primary language... :)

Many things leak information. NEVER assume leaked information soaks into the ground and is never seen again. Good guys let it go, the bad guys scoop it up and make something of it. Worry about what the bad guys are doing...

They ARE out to get you...  *twitch*  *twitch*

Nick.

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