CentOS - Sep 2005 - [OT] DNS - asking for your opinion

Hi list, I first apologise because this is really off topic, but I would 
really appreciate your opinion on this.

I have had a very hard time configuring a DNS server to answer reverse 
dns queries, and I would like to have your opinion on my provider 
behaviour.
We have 3 classless subnets and asked the provider to delegate reverse 
dns. They configured their server and emailed me all was fine but i it 
didn't work for one subnet, so I mailed back and they assure their side 
was all perfectly configured.
I finally find out (spending lot of time and thanks to www.dnsstuff.com) 
that they configured 2 zones like 128/27.x.x.x.in-addr.arpa and one as 
128-27.x.x.x.in-addr.arpa, so my server was not able to answer queries 
because I had all zones 128/27.x.x.x.in-addr.arpa.
As said before it is my first time configuring Bind and I am sure the 
more experienced would have notice and solved it quite soon, but still I 
wonder why to use different convention (without telling us) and even if 
this is correct (red the http://rfc.net/rfc2317.html and they always use 
"/" not "-"  ).
Hope I won't be banned from the list for this email......

Thanks for your time reading this

Simone

IMHO the convention is stupid (and isn't really any convention - everyone 
does it differently, i've seen x.x.x.x.in-addr.arpa being CNAMEs to: 
x.128.x.x.x.in-addr.arpa, x.128/25.x.x.x.in-addr.arpa 
x.128-255.x.x.x.in-addr.arpa, x.128-25.x.x.x.in-addr.arpa or even 
x.x.x.x.revdns.company.com or x.revdns.company.com) and the only 
reason it's even there is because Bind is brain-dead.  There's no need
to
use anything besides normal x.x.x.x.in-addr.arpa (especially if you use 
djbdns or if you're willing to put a little more work into bind).

Cheers,
MaZe.

On Thu, 1 Sep 2005, Simone wrote:
> Hi list, I first apologise because this is really off topic, but I would 
> really appreciate your opinion on this.
>
> I have had a very hard time configuring a DNS server to answer reverse dns 
> queries, and I would like to have your opinion on my provider behaviour.
> We have 3 classless subnets and asked the provider to delegate reverse dns.
> They configured their server and emailed me all was fine but i it
didn't work
> for one subnet, so I mailed back and they assure their side was all
perfectly
> configured.
> I finally find out (spending lot of time and thanks to www.dnsstuff.com)
that
> they configured 2 zones like 128/27.x.x.x.in-addr.arpa and one as 
> 128-27.x.x.x.in-addr.arpa, so my server was not able to answer queries 
> because I had all zones 128/27.x.x.x.in-addr.arpa.
> As said before it is my first time configuring Bind and I am sure the more 
> experienced would have notice and solved it quite soon, but still I wonder 
> why to use different convention (without telling us) and even if this is 
> correct (red the http://rfc.net/rfc2317.html and they always use
"/" not "-"
> ).
> Hope I won't be banned from the list for this email......
>
> Thanks for your time reading this
>
> Simone
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