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Fixing a reverse DNS issue (SOLVED)
18-08-2010, 04:54 PM
Post: #1
Fixing a reverse DNS issue (SOLVED)
I am sure I have done this in the past but am having a complete memory blank.

We have a customer with Demon internet. Hosting of their domain names is done through a 3rd party.

Currently they have an A record for: mail.customerdomain.com which resolves to their external IP address (provided by Demon) all good so far.

However a reverse lookup on the IP resolves to a different address

demon-gw.customerdomain.co.uk

This is causing them a number of DNS issues.

I have access to the DNS control panel for the .com and .co.uk domains and cannot for the life of me think what I need to do to resolve the issues :/

Any pointers ?

- Techmonkey
================
Enterprise Business IT Support | SME IT Support | Home Support Available
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18-08-2010, 05:55 PM (This post was last modified: 18-08-2010 06:00 PM by iamwithstupid.)
Post: #2
Fixing a reverse DNS issue (SOLVED)
It will be on the control panel somewhere on the hosts side, since they control that ip. Doesn't matter about the 3rd party DNS
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19-08-2010, 10:41 AM
Post: #3
Fixing a reverse DNS issue (SOLVED)
It was me being daft, even though the ISP had said it wasnt them it quite clearly was as the external IP is theirs and is always going to resolve back to their side.

Contacted Demon and got them to sort it out, cheers though IAWS Smile

- Techmonkey
================
Enterprise Business IT Support | SME IT Support | Home Support Available
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