Discussion:
How does reverse lookup (or something) work?
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g***@cyberdude.com
2020-03-18 11:03:14 UTC
Permalink
So, if a company, say BigCo's employees are surfing the internet, and the owner of that website would like "Hits from bigco.com here" on his/her logs - what's to be done, exactly? If BigCo has registered a domain, bigco.com - well THAT'S not enough, obviously?
And what about a *home* user? Like, if *I* go to a website right now (on a home net connection), if I, for some reason, WANT that that owner should see a groovee.grooveesisp.com on his/her logs, what do I do? And groovee.com? What then?


Thanks :)
Barry Margolin
2020-03-18 14:00:56 UTC
Permalink
Post by g***@cyberdude.com
So, if a company, say BigCo's employees are surfing the internet, and the
owner of that website would like "Hits from bigco.com here" on his/her logs -
what's to be done, exactly? If BigCo has registered a domain, bigco.com -
well THAT'S not enough, obviously?
No. They need to get reverse DNS for their IP address range delegated to
their nameservers as well. That's done by their ISP.
Post by g***@cyberdude.com
And what about a *home* user? Like, if *I* go to a website right now (on a
home net connection), if I, for some reason, WANT that that owner should see
a groovee.grooveesisp.com on his/her logs, what do I do? And groovee.com?
What then?
Not really feasible. If you're coming from a home connection you're
using your residential ISP's IP addresses. A reverse lookup will say
that you're coming from something like comcast.net, there's no
connection to your employer.

Unless you use a VPN to route all your traffic through your company's
network.
--
Barry Margolin
Arlington, MA
Grant Taylor
2020-03-19 00:55:44 UTC
Permalink
Post by g***@cyberdude.com
So, if a company, say BigCo's employees are surfing the internet,
and the owner of that website would like "Hits from bigco.com here"
on his/her logs - what's to be done, exactly? If BigCo has registered
a domain, bigco.com - well THAT'S not enough, obviously?
And what about a *home* user? Like, if *I* go to a website right now
(on a home net connection), if I, for some reason, WANT that that
owner should see a groovee.grooveesisp.com on his/her logs, what do
I do? And groovee.com? What then?
Like Barry said, "reverse DNS" is at the heart of what you're asking.
Once you understand the concept, you will realize that the differences
in BigCo and you are really scale and what types of connections you
have, plus who's in control of said connections.

But specifically "reverse DNS".
Post by g***@cyberdude.com
Thanks :)
:-)
--
Grant. . . .
unix || die
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