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Re: Setting Up Reverse DNS QueryFrom: Men & Mice Support Date: Tuesday, November 9, 2004
Time: 1:58:12 pmAt 3:28 PM +0000 11/9/04, Stuart Douglas wrote:
>From: "Men & Mice Support" <cbuxton@menandmice.com>
>Date: Mon, 8 Nov 2004 09:46:00 -0800
>
>>Setting up reverse DNS records isn't as straightforward as it sounds.
>>First, you must figure out if the reverse zone belongs to your server.
>
>>With a regular domain name, when you register the domain, it's
>>delegated to your server. A reverse zone must be similarly delegated,
>>but "registration" is typically handled with your ISP rather than
>>with a central registrar.
>
>>I looked up the PTR record delegation for ns.groovychocolate.com. The
>>ednet.co.uk servers do in fact delegate your reverse records to your
>>server. The zone name (called "domain name" in QuickDNS Pro 2.x) is:
>
>>233.20.212.in-addr.groovychocolate.com.
>
>>Creative, and perfectly legal. You don't even need to separate these
>>into a reverse zone if you don't want to - just create records like
>>this for each of your IP addresses:
>
>>82.233.20.212.in-addr.groovychocolate.com. PTR mail.groovychocolate.com.
>
>Ah, I was doing fine until this point Chris - our mail server and
>Quick DNS are both on the 82 box, so I've already got a record :
>
>82.233.20.212.in-addr.groovychocolate.com. PTR ns.groovychocolate.com
>
>Is it allowable to have both records, ie:
>
>82.233.20.212.in-addr.groovychocolate.com. PTR mail.groovychocolate.com
>82.233.20.212.in-addr.groovychocolate.com. PTR ns.groovychocolate.com
It's not against the rules, but it's a bad idea in this case. You
should have just the one pointing to mail.groovychocolate.com.
Chris Buxton
Men & Mice - Making DNS Easy
Customer Service and Sales Engineer
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