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Reverse NS Lookup

Simon Faulkner News at Titanic.co.uk
Mon Oct 23 09:33:23 EDT 2000 
Cheers,  I will try these...


Simon

On Sun, 22 Oct 2000 18:29:56 GMT, matt at mondoinfo.com (Matthew Dixon
Cowles) wrote:

>On Sun, 22 Oct 2000 17:43:03 GMT, Simon Faulkner <News at Titanic.co.uk>
>wrote:
>
>>How do I find the domain name of an IP address?
>
>If you're running under Unix, you could open a pipe from nslookup (or
>another similar command line tool) and parse the result:
>
>import os
>import string
>
>def main():
>  p=os.popen("/usr/bin/nslookup 208.185.174.123")
>
>  while 1:
>    l=p.readline()
>    if l[:6]=="Name: ":
>      domainName=string.strip(l[6:])
>      break
>  p.close()
>  print domainName
>
>While that's not hard, it leaves you vulnerable to a change in
>nslookup's output format.
>
>Alternatively, you can prolly use the dns code that's in the source
>distribution's Demo directory. I've been using Anthony Baxter's
>improved version of that code. You can find information about it at:
>
>http://www.vex.net/parnassus/apyllo.py?i=632080673
>
>If you're using that code, all you need to do is:
>
>>>> import DNS
>>>> DNS.ParseResolvConf()
>>>> DNS.revlookup("208.185.174.123")
>
>You should be aware that a very small number of evil spammers
>deliberately put false information in their reverse lookup databases
>and that a fair number of clueless admins don't put any data in them.
>
>Regards,
>Matt

Simon Faulkner
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