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Thread: Will Bind reverse resolution ever work in this situation?

  1. #1
    Join Date
    Dec 2012
    Beans
    2

    Smile Will Bind reverse resolution ever work in this situation?

    Hi Everyone,
    Im trying to figure out whether or not reverse resolution will ever work in my particular situation. I've changed the domain names and IPs to protect the innocent.

    Im using an old(er) pc as a dns server(running bind 9.8 on ubuntu 12.4) at my house, which is obviously running over my home broadband connection (don't worry its just a test set up, nothing mission critical!)
    So my home public ip address is 1.2.3.4 and it resolves to customer1.isp.com
    My DNS server is setup as the master of example.com.
    The MX record is also pointing at 1.2.3.4 (the mail server is also at my home)
    So asking the dns server to resolve mail.example.com predictably resolves to 1.2.3.4

    However, when I do a reverse resolution on 1.2.3.4 it doesnt resolve to mail.example.com, but to customer1.isp.com

    My question is: Is it actually possible to get it to resolve (from anywhere on the internet) to mail.example.com?

    From the the information Ive seen, I dont think it is, but just wanted to check my thinking was correct?

    Thanks in advance, and merry christmas to one and all!
    Geo

  2. #2
    Join Date
    Apr 2008
    Location
    LOCATION=/dev/random
    Beans
    5,767
    Distro
    Ubuntu Development Release

    Re: Will Bind reverse resolution ever work in this situation?

    The reverse DNS settings can only be changed by your ISP (as they are the ones that own the IP addresses).

    Some ISP's will let you change the settings (sometimes for a fee), and some ISP's won't. You'll have to contact them to find out.
    Cheesemill

  3. #3
    Join Date
    Dec 2012
    Beans
    2

    Re: Will Bind reverse resolution ever work in this situation?

    Hi Cheesemill, Thats pretty much what I thought. Thanks very much
    Geo

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