Re: [cobalt-users] DNS reverse address lookup, Raq3i

[COMPUTICA <cobalt@xxxxxxxxxxxxxxxxxx>]

On Tuesday, October 29, 2002, 3:02:07 PM, you wrote:

jgn> A couple of weeks back there was a post, maybe from Jeff Lasman, that said 
jgn> there should not be Automatic Reverse Address Record Generation records for 
jgn> each domain.

jgn> When we setup our DNS, we went by the book, which had us do that, so for 
jgn> each domain, I have:

1) domain.com -->> ip address
jgn> 2) www.domain.com --> ip address
3) ip address -->> domain.com (27 bit)
4) ip address -->> www.domain.com (27 bit)
5) domain.com -->> high speed mail server www.domain.com

jgn> All "appears" to work fine, but I want to clean up my DNS if this is setup 
jgn> incorrectly. So my questions:
jgn> 1) should each domain NOT have its own reverse PTR record (# 3, 4 above)?
jgn> 2) should there be one reverse PTR record ... per server? per IP? Not at all?

jgn> Not having one for each domain would be very convenient, it would speed up 
jgn> my DNS work as I don't have to create the extra entry which I have to edit 
jgn> to change the default 24 bit to 27 bit for my subnet mask.

jgn> Thanks in advance,
jgn> Jale

We have been delegated authority over a /25 and have always set-up DNS
records like so:

     For the first site using a specific IP:

         1) domain.com -->> ip address
         2) www.domain.com --> ip address
         3) ip address/25 --> domain.com
         3) domain.com -->> high speed mail server www.domain.com
         4) www.domain.com -->> high speed mail server www.domain.com

     For any other site using the same IP as the record above

         1) domain.com -->> ip address
         2) www.domain.com --> ip address
         3) domain.com -->> high speed mail server www.domain.com
         4) www.domain.com -->> high speed mail server www.domain.com

This is what we learned when we first got some RaQ's and it has been
working great....if something is wrong with it, I apologize, but like
I said before, it has always worked 100% for us...

Ryan Hnetka
President/Partner
COMPUTICA - http://www.computicahosting.com