[Pdns-users] Question about Multiple CNAMES

Clint Martin clintm at laplink.com
Fri Oct 8 20:39:34 UTC 2004

I can accomplish my goals this way.. This is how I have done it in the
past..  I don't mind having to change my setup if this one just won't
work, or is fundamentally flawed. .. This environment, as you may be
able to tell, is a development environment,.. I was trying to keep the
references to specific IP addresses limited to a bare few number of
records.. This would allow me to modify the domain far easier and
simpler than having many, many A records.. 

This one small example is not the only place where I reference these
particular machines/IP's in this fashion..  

So, baring the "right way" to do this, and personal taste.. Is PDNS's
response to the current configuration correct or "close but not quite" ?

Clint Martin
Network Administrator
LapLink Software Inc.

-----Original Message-----
From: Lorens Kockum [mailto:lk-sender-02 at lorens.com] On Behalf Of Lorens
Sent: Friday, October 08, 2004 1:21 PM
To: Clint Martin
Cc: pdns-users at mailman.powerdns.com
Subject: Re: [Pdns-users] Question about Multiple CNAMES

On Fri, Oct 08, 2004 at 12:31:03PM -0700, Clint Martin wrote:
> Hello,
> I have PDNS 9.16 with the gmysql backend configured to serve several 
> domains.  I am very impressed with PDNS btw..
> One of the requirements for some of the services we have is the 
> ability to point one DNS name at multiple machines.
> relay.dev.domain.net		CNAME	relay00.dev.domain.net
> relay.dev.domain.net		CNAME	relay01.dev.domain.net

I do not think it is valid to have several CNAMEs. I may be wrong, but
I've never seen it tried.

The classical way is to have

relay00.dev.domain.net  IN A
relay01.dev.domain.net  IN A
relay.dev.domain.net    IN A
relay.dev.domain.net    IN A

(and the corresponding   IN PTR  relay00.dev.domain.net.   IN PTR  relay01.dev.domain.net.

You will not have any problems with that.

#include <std_disclaim.h>                          Lorens Kockum

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