get a domain's dns records

Phil Mayers p.mayers at
Fri Jan 21 14:18:46 UTC 2011

On 21/01/11 13:50, Barry Margolin wrote:
> In article<mailman.1415.1295616325.555.bind-users at>,
>   Joseph S D Yao<jsdy at>  wrote:
>> On Fri, Jan 21, 2011 at 02:19:45PM +0800, pyh at wrote:
>>> I'm jsut curious, how does "" know the dns records in my domain
>>> (
>>> The page shows some of my RRs exactly:
>> The title of the page is, " DNS Lookup | Nameserver Lookup -
>> -".  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?

Most of the records are well-known (i.e. A/MX/NS/SOA on the zone apex, 
or or lookups of the RHS of a well-known. The site 
appears to probe for "".

So it didn't "list" the zone. It looked up some well-known names and RRs 
and got replies.

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