Re: [TCLUG:13925] IP Address range for a domain?

["Thomas T. Veldhouse" <veldy@visi.com>]

I don't need a sure way that is so general.  I know that the domain I am
looking into is fixed.  I just needed to now its IP range.  I have found it
thanks to Mark Kroska's answer.  It really was very simple.

Tom Veldhouse
veldy@visi.com

----- Original Message -----
From: "Karl Morgan" <ksm@dogbrain.com>
To: <tclug-list@mn-linux.org>
Sent: Tuesday, February 22, 2000 8:57 PM
Subject: Re: [TCLUG:13925] IP Address range for a domain?


>
> > Yep, there is a nice firewall.  SSH only.  However, the Northwest
Airlines
> > thing as scared the person I am helping.  So, I need to make sure that
there
> > is no "casual" connection.
>
> Tom,
>
> Like everyone else has already pointed out, there is no sure fire way
> to do what you want to do. The domainname is not bound to the IP addr.
> Also, just blocking with the domainname is no sure fire way to block
> access either. Think about the person that leaves work, logs in
> through thier ISP and then accesses this sight. There is no way you
> can forsee all the combinations.
>
> Here are some things that may work but the results aren't guaranteed.
> And i'll add that they aren't the solution to your problem.
>
> 1. Ask thier nameserver to enumerate the host entries:
>
> % nslookup
> > server <thier-nameserver>
> > ls <thier-domainname>
>
> Which may or may not work depending on the configuration of thier
> DNS server.
>
> 2. You may be able to get some info out of ARIN regarding the company?
>
> go to http://www.arin.net/cgi-bin/whois.pl and search for the
> company name.
>
> Otherwise, ... I don't think your seeing straight on this issue.
>
> - Karl
>
>
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