there is an oreiley book called "dns and bind" There is a version that also has the text in electronic (html) format. It is a good read and explains a lot of the reasons for the things you observe. kp On Tue, 24 May 2005, Sina Bahram wrote: > That's exactly my point. > > Isn't that bizaare? > > hospital.com has been owned since like 1997 by some company in California, > yet if you do a dns query ... You get nothing! > > Now, I'm a computer science student, and I sincerely don't mind reading the > RFC's and the millions of other insanely boring documents detailing the DNS, > or excuse for DNS, protocol and structure we have on this planet; however, I > do have a problem with things not conforming to said standard. > > Obviously, at this point, I am still looking for things that I am doing > wrong, not for things that they are doing wrong. I just can't find anywhere > else to look. My whoel program is 10 lines for goodness sakes ... A few more > if you count the braces, *smile*. > > If I were anyone else, I'd tell myself. > > *smile*, fustrated much? > > But, *sigh*, this is quite agrivating, and I really really appreciate you > taking the time to lookup those sites. > > Please let me know if you have any incites at all. > > Take care, > Sina > > -----Original Message----- > From: speakup-bounces at braille.uwo.ca [mailto:speakup-bounces at braille.uwo.ca] > On Behalf Of Ralph W. Reid > Sent: Tuesday, May 24, 2005 7:34 PM > To: Speakup is a screen review system for Linux. > Subject: Re: Dns question > > I just tried `host` and `dig` to look up www.hospital.com and > www.patient.com, and I could not find any IP numbers for either URL. > I'm not sure what you mean by these URL's being 'owned', but they do not > hseem to have any associated IP numbers, hence the DNS look up failure. > HTH, and have a _great_ day! > > On Mon, May 23, 2005 at 10:47:17PM -0400, 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 > > -- > Ralph. N6BNO. Wisdom comes from central processing, not from I/O. > rreid at sunset.net http://personalweb.sunset.net/~rreid > ...passing through The City of Internet at the speed of light! > 1 = x^0 > > _______________________________________________ > Speakup mailing list > Speakup at braille.uwo.ca > http://speech.braille.uwo.ca/mailman/listinfo/speakup > > > > _______________________________________________ > Speakup mailing list > Speakup at braille.uwo.ca > http://speech.braille.uwo.ca/mailman/listinfo/speakup >
