Dns question

[Kelly Prescott]

also remember that when checking soa for a domain,
just check xxx.com or xxx.net not www.xxx.com or www.xxx.net
you should only check 1 dot past the top level.
so for .com, just domain.com
kp


On Tue, 24 May 2005, Sina Bahram wrote:

> Hi Kp,
>
> Before we take this offline. Let me add one more thing.
> The reason I'm not using whois, is because I have more than one query to
> make, and I have heard that they frown upon automated access.
>
> But if you can offer anything else, I'll be more than happy to contact you
> offline.
>
> Take care,
> Sina
>
> -----Original Message-----
> From: speakup-bounces at braille.uwo.ca [mailto:speakup-bounces at braille.uwo.ca]
> On Behalf Of Kelly Prescott
> Sent: Tuesday, May 24, 2005 3:48 AM
> To: Speakup is a screen review system for Linux.
> Subject: Re: Dns question
>
> 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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>>
>
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