• How does reverse lookup (or something) work?

    From groovee@cyberdude.com@21:1/5 to All on Wed Mar 18 04:03:14 2020
    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 :)

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  • From Barry Margolin@21:1/5 to groovee@cyberdude.com on Wed Mar 18 10:00:56 2020
    In article <bed1874e-a0ec-4742-8aa5-ee681b40fd3d@googlegroups.com>,
    groovee@cyberdude.com wrote:

    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.

    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

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  • From Grant Taylor@21:1/5 to groovee@cyberdude.com on Wed Mar 18 18:55:44 2020
    On 3/18/20 5:03 AM, groovee@cyberdude.com wrote:
    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".

    Thanks :)

    :-)



    --
    Grant. . . .
    unix || die

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