PTR not working...

Alexandre Racine aracine at bgrinformatique.com
Thu Aug 13 15:46:10 UTC 2009


Following all you good comments, I tried different things, and can't get it to work properly yet.

If my config has this:
---
$ttl 38400
80-28.115.25.70.in-addr.arpa.	IN	SOA	ns10.bgrinformatique.com. aracine.bgrinformatique.com. (
			1250177152
			10800
			3600
			604800
			38400 )
80-28.115.25.70.in-addr.arpa.	IN	NS	ns10.bgrinformatique.com.
82.115.25.70.in-addr.arpa.	IN	PTR	mail.bgrinformatique.com.
---

Doing a "dig -x 70.25.115.82" does not give mail.bgrinformatique.com but more like "No PTR records exist for 70.25.115.82.", this is from dnsstuff.com.

Since I had a little more time, I tested with the same config, but instead of 80-28.115.25.70.in-addr.arpa. I have tried 80.115.25.70.in-addr.arpa.and doing a reverse DNS with dnsstuff gives "An error occurred: Server ns10.bgrinformatique.com is refusing to answer." witch seems kind of better? :)

Would that mean that using the network 70.25.115.80 works, but that there is an option somewhere to allow PTR request to pass?

Thanks.




Alexandre Racine, VMware VSP, Vmware VTSP
aracine at bgrinformatique.com



www.bgrinformatique.com
wTel :   (514)328-6211
TFax :  (514)325-6370
8455, boul. Langelier 
St-Léonard (Québec) H1P 2C5

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         Pensons environnement... 


-----Message d'origine-----
De : bind-users-bounces at lists.isc.org [mailto:bind-users-bounces at lists.isc.org] De la part de Kevin Darcy
Envoyé : 6 août 2009 16:06
À : bind-users at lists.isc.org
Objet : Re: PTR not working...

What you have would only work if you had the whole 70.25.115.0/24 and 
Bell Canada delegated all of 115.25.70.in-addr.arpa to you.

But, it looks like you only have a /28 and Bell Canada is following some 
sort of RFC 2317 convention:

;; ANSWER SECTION:
82.115.25.70.in-addr.arpa. 86400 IN CNAME 82.80-28.115.25.70.in-addr.arpa.

Presumably 80-28.115.25.70.in-addr.arpa is delegated to you, as per 
their convention. You need to populate *that* zone with PTRs if you want 
them to resolve on the Internet.

For good measure, you should probably also set yourself up to slave 
25.70.in-addr.arpa from Bell Canada so that you can still resolve your 
own PTRs even if your link is down.

- Kevin

Alexandre Racine wrote:
>
> Hi all, I am trying to make my PTR work and it does not. Testing it 
> with dnsstuff and other tools simply say that there are no records
>
> “*No PTR records exist for 70.25.115.82.* [Neg TTL=38400 seconds]”
>
> Looking up my config, I have this below. Is there something wrong?
>
> My other zones are working correctly.
>
> This is with bind 9.4.2 on Ubuntu 8.04 LTS
>
> Thanks for any help
>
> ------------
>
> $ttl 38400
>
> 115.25.70.in-addr.arpa. IN SOA ns10.bgrinformatique.com. 
> aracine.bgrinformatique.com. (
>
> 1247063804
>
> 10800
>
> 3600
>
> 604800
>
> 38400 )
>
> 115.25.70.in-addr.arpa. IN NS ns10.bgrinformatique.com.
>
> 82.115.25.70.in-addr.arpa. IN PTR mail.bgrinformatique.com.
>
> 85.115.25.70.in-addr.arpa. IN PTR bgrinformatique.com.
>
> 85.115.25.70.in-addr.arpa. IN PTR www.bgrinformatique.com.
>
> 115.25.70.in-addr.arpa. IN NS ns11.bgrinformatique.com.
>
> 83.115.25.70.in-addr.arpa. IN PTR ns10.bgrinformatique.com.
>
> 84.115.25.70.in-addr.arpa. IN PTR ns11.bgrinformatique.com.
>
> ------------
>
> This is with bind9
>
> *Alexandre Racine**, VMware VSP, Vmware VTSP*
>
> /_aracine at bgrinformatique.com <mailto:aracine at bgrinformatique.com>_//
>
> /*//*
>
> */ /*
>
> /image001/
>
> /www.bgrinformatique.com
> //(/*/Tel : (514)328-6211/*//
>
> /(//Fax : (514)325-6370///
>
> /8455, boul. Langelier//
> //St-Léonard (Québec) H1P 2C5///
>
> *VMLOGO_VTSP_K_Q208sales_prof_B*
>
> /P// //Devez-vous vraiment imprimer ce courriel ?/
>
> / Pensons environnement... /
>
> ------------------------------------------------------------------------
>
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