abbreviated zone data question

[vze78se7 at verizon.net]

On Fri, 5 Nov 2004 17:46:19 -0500, David Botham
<DBotham at OptimusSolutions.com> wrote:

>bind-users-bounce at isc.org wrote on 11/05/2004 04:02:29 PM:
>> If I'm abbreviating a zone, allowing the origin to populate it, is it
>> OK to do:
>> 
>> 
>>    IN A   xxx.xxx.xxx.xxx
>> www   IN CNAME
>> ftp   IN CNAME
>
>You would want to do this:
>
>
>@     IN A      xxx.xxx.xxx.xxx
>www   IN CNAME  @
>ftp   IN CNAME  @
>
>The '@' symbol is important.  It is the 'origin' substitution character.
>
>> 

great...thanks for helping me out with that!


>> 
>> or would I have to do:
>> 
>> www   IN A   xxx.xxx.xxx.xxx
>> ftp   IN CNAME   www
>>    IN CNAME   www
>
>The above will not work.  The last cname RR (assuming you used the @ sign 
>as shown above) would violate the cname and other data rule.  In other 
>words, the domain name itself already owns NS RR's and an SOA RR.  What 
>ever owns (is on the left side of) a CNAME RR cannot own (be on the left 
>side of) any other RR's.
>
>
>hth,
>
>
>Dave...
>
>> 
>> TiA, Andrew
>> 
>> 
>
>