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Groups > comp.os.linux.networking > #3548

Re: Is it possible to obtain all of the ip addresses correspoding to a FQDN?

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On 2015-10-18, Lew Pitcher <lew.pitcher@digitalfreehold.ca> wrote:
> On Sunday October 18 2015 13:31, in comp.os.linux.networking, "William Unruh"
><unruh@invalid.ca> wrote:
>
>> On 2015-10-18, Hongyi Zhao <hongyi.zhao@gmail.com> wrote:
>>> Hi all,
>>>
>>> For a domain name / FQDN, say www.google.com , is there a method to
>>> obtain all of the ip addresses corresponding it?
>> 
>> whois
>
> Probably not, Bill.
> "whois" gives the dns registration data, not the resolver data. In other
> words, "whois" will tell you who registered google.com, and what addresses
> the DNS servers have, but not necessarily anything about the addresses that a
> specific name resoves to.
>
> The OP may find "nslookup" a better choice. It can (and will) report the IP
> addresses any specific fqdn resolves to.

IF he has specific names, then what you say is true. But he wanted to
know all of the computers under a certain domain I thought. 
Now, it is confusing, since www.google.com is not a domain, and an FQDN
is not a domain, so for looking up addresses corresponding to specific
names, I agree whois is not appropriate. The easiest is probable
ping -c 1 -w 1 name
which will show the IP corresponding to that name. (or course with
www.google.com it does not correspoind to a specific address-- they are
both location and time dependent. There are loads of Ip corresponding
to that name .) 
On the other hand if he wants to know what belongs to google.com then
whois at least give a hint. 
But as far as I know, there is nothing that says "these are all the
machines IPs that use say google.com as their domain name. I do not
think it is even possible. 

>

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Thread

Is it possible to obtain all of the ip addresses correspoding to a FQDN? Hongyi Zhao <hongyi.zhao@gmail.com> - 2015-10-18 01:43 +0000
  Re: Is it possible to obtain all of the ip addresses correspoding to a FQDN? Bit Twister <BitTwister@mouse-potato.com> - 2015-10-18 03:27 +0000
  Re: Is it possible to obtain all of the ip addresses correspoding to a FQDN? Marc Haber <mh+usenetspam1118@zugschl.us> - 2015-10-18 09:45 +0200
    Re: Is it possible to obtain all of the ip addresses correspoding to a FQDN? Richard Kettlewell <rjk@greenend.org.uk> - 2015-10-18 12:43 +0100
      Re: Is it possible to obtain all of the ip addresses correspoding to a FQDN? Marc Haber <mh+usenetspam1118@zugschl.us> - 2015-10-18 17:02 +0200
        Re: Is it possible to obtain all of the ip addresses correspoding to a FQDN? Jorgen Grahn <grahn+nntp@snipabacken.se> - 2015-10-18 18:17 +0000
          Re: Is it possible to obtain all of the ip addresses correspoding to a FQDN? Marc Haber <mh+usenetspam1118@zugschl.us> - 2015-10-18 20:30 +0200
            Re: Is it possible to obtain all of the ip addresses correspoding to a FQDN? Richard Kettlewell <rjk@greenend.org.uk> - 2015-10-18 19:35 +0100
  Re: Is it possible to obtain all of the ip addresses correspoding to a FQDN? William Unruh <unruh@invalid.ca> - 2015-10-18 17:31 +0000
    Re: Is it possible to obtain all of the ip addresses correspoding to a FQDN? Lew Pitcher <lew.pitcher@digitalfreehold.ca> - 2015-10-18 13:48 -0400
      Re: Is it possible to obtain all of the ip addresses correspoding to a FQDN? William Unruh <unruh@invalid.ca> - 2015-10-18 18:22 +0000
        Re: Is it possible to obtain all of the ip addresses correspoding to a FQDN? Richard Kettlewell <rjk@greenend.org.uk> - 2015-10-18 19:32 +0100
          Re: Is it possible to obtain all of the ip addresses correspoding to a FQDN? Baho Utot <baho-utot@columbus.rr.com> - 2015-10-18 16:45 -0400
            Re: Is it possible to obtain all of the ip addresses correspoding to a FQDN? Lew Pitcher <lew.pitcher@digitalfreehold.ca> - 2015-10-18 17:14 -0400
              Re: Is it possible to obtain all of the ip addresses correspoding to a FQDN? Baho Utot <baho-utot@columbus.rr.com> - 2015-10-18 19:09 -0400
                Re: Is it possible to obtain all of the ip addresses correspoding to a FQDN? Lew Pitcher <lew.pitcher@digitalfreehold.ca> - 2015-10-18 20:22 -0400
                Re: Is it possible to obtain all of the ip addresses correspoding to a FQDN? Lew Pitcher <lew.pitcher@digitalfreehold.ca> - 2015-10-18 20:41 -0400
                Re: Is it possible to obtain all of the ip addresses correspoding to a FQDN? Rick Jones <rick.jones2@hp.com> - 2015-10-19 20:56 +0000
            Re: Is it possible to obtain all of the ip addresses correspoding to a FQDN? Richard Kettlewell <rjk@greenend.org.uk> - 2015-10-18 22:25 +0100
              Re: Is it possible to obtain all of the ip addresses correspoding to a FQDN? Baho Utot <baho-utot@columbus.rr.com> - 2015-10-18 19:04 -0400
                Re: Is it possible to obtain all of the ip addresses correspoding to a FQDN? Richard Kettlewell <rjk@greenend.org.uk> - 2015-10-19 09:22 +0100
                Re: Is it possible to obtain all of the ip addresses correspoding to a FQDN? William Unruh <unruh@invalid.ca> - 2015-10-19 16:55 +0000
                Re: Is it possible to obtain all of the ip addresses correspoding to a FQDN? Joe Pfeiffer <pfeiffer@cs.nmsu.edu> - 2015-10-19 11:23 -0600
                Re: Is it possible to obtain all of the ip addresses correspoding to a FQDN? William Unruh <unruh@invalid.ca> - 2015-10-19 17:37 +0000
                Re: Is it possible to obtain all of the ip addresses correspoding to a FQDN? Lew Pitcher <lew.pitcher@digitalfreehold.ca> - 2015-10-20 14:52 -0400
                Re: Is it possible to obtain all of the ip addresses correspoding to a FQDN? Baho Utot <baho-utot@columbus.rr.com> - 2015-10-20 18:45 -0400
                Re: Is it possible to obtain all of the ip addresses correspoding to a FQDN? William Unruh <unruh@invalid.ca> - 2015-10-21 01:47 +0000
                Re: Is it possible to obtain all of the ip addresses correspoding to a FQDN? Baho Utot <baho-utot@columbus.rr.com> - 2015-10-21 18:43 -0400
                Re: Is it possible to obtain all of the ip addresses correspoding to a FQDN? Jorgen Grahn <grahn+nntp@snipabacken.se> - 2015-10-21 10:54 +0000
                Re: Is it possible to obtain all of the ip addresses correspoding to a FQDN? Baho Utot <baho-utot@columbus.rr.com> - 2015-10-21 18:38 -0400
                Re: Is it possible to obtain all of the ip addresses correspoding to a FQDN? Marc Haber <mh+usenetspam1118@zugschl.us> - 2015-10-22 08:57 +0200
                Re: Is it possible to obtain all of the ip addresses correspoding to a FQDN? Baho Utot <baho-utot@columbus.rr.com> - 2015-10-22 19:36 -0400
                Re: Is it possible to obtain all of the ip addresses correspoding to a FQDN? Jorgen Grahn <grahn+nntp@snipabacken.se> - 2015-10-23 17:44 +0000
                Re: Is it possible to obtain all of the ip addresses correspoding to a FQDN? Marc Haber <mh+usenetspam1118@zugschl.us> - 2015-10-23 21:21 +0200

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