Dns question

[Kelly Prescott]

ok, here goes a brief informational post about DNS...
there is ***no*** complete source of information about domains registered 
etc...
There is, however, many registries that maintain information about various 
domains...
With that said, there is a way to do a better job of finding the 
availability of a domain.
checkout bwwhois available from
http://whois.bw.org
This client, among other things, has a table of which registrys administer 
which top-level domains...
Hope this helps.
email me privately if you need more info.
kp


On Mon, 23 May 2005, Sina Bahram wrote:

> Hi all,
>
> I hope everyone is doing well.
>
> I appologise for the off topic message, but I know that a great deal of you
> are enthusiasts in networking, and are quite more well versed than myself in
> DNS, which is where my question arises.
>
> I am building a utility that checks to see if a particular domain is
> registered or not.
>
> Think of it like a stripped down personalize version of whois, if you will.
>
> My problem is that I have yet to figure out the absolute minimum
> requirement, in terms of something that can be programmatically determined,
> that says: hey this .com is taken.
>
> I am using the net::dns module from CPAN in my perl script, and I have tried
> looking at the SOA record, because that is what I have picked up from my
> documentation and google runs as being the absolute requirement.
>
> Yet, I still get websites like
>
> www.hospital.com
>
> And
>
> www.patient.com
>
> Which do not return SOA records to my program, yet they are owned ... I
> think both of those, since 1997.
>
> So, my question is, what is the absolute minimum? I would even appreciate
> documentation pointers, but I just can not learn DNS in and out right now,
> due to other job, research, and student requirements; however, I'm more than
> willing to RTFM, as it were, I just haven't found anything that doesn't
> point me to either MX or SOA records.
>
> Thanks so much for any assistance.
>
> Take care,
> Sina
>
>
>
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