get a domain's dns records

[Barry Margolin]

In article <mailman.1415.1295616325.555.bind-users at lists.isc.org>,
 Joseph S D Yao <jsdy at tux.org> wrote:

> On Fri, Jan 21, 2011 at 02:19:45PM +0800, pyh at mail.nsbeta.info wrote:
> > 
> > I'm jsut curious, how does "who.is" know the dns records in my domain 
> > (nsbeta.info)? 
> > 
> > The page shows some of my RRs exactly: 
> > 
> > http://who.is/dns/nsbeta.info/ 
> 
> 
> The title of the page is, "Nsbeta.info DNS Lookup | Nameserver Lookup -
> Who.is - Who.is".  They probably did just exactly that - DNS lookup.
> Anything in DNS is public information.

But the nameservers for the domain don't allow public zone transfers.  
So if you know the names in the zone you can look them up, but how did 
the site list the names in his zone?

-- 
Barry Margolin, barmar at alum.mit.edu
Arlington, MA
*** PLEASE don't copy me on replies, I'll read them in the group ***