DNS forwarding

Barry Margolin barmar at alum.mit.edu
Thu May 18 17:57:25 UTC 2017

In article <mailman.160.1495053960.702.bind-users at lists.isc.org>,
 Elias Pereira <empbilly at gmail.com> wrote:

> Hello,
> Our scenario today consists of one:
> - DNS Server (Authoritative to our subdomains. Ex: www.mydomain.com*,
> moodle.mydomain.com, etc)
> - samba3 PDC server
> - Openldap server (user base for samba)
> All our IPs are public.
> This scenario above works like a charm!! :D
> Now, I'm implementing a new samba4 AD server.
> In order for me to be able to put users in the AD domain, I need to
> configure the samba4 AD IP as primary dns on the computers. In the bind
> installed on samba4 AD I configured the "forwarder" variable with the IP of
> our DNS server.
> The problem is that from this computer, if I need to access an internal
> subdomain, for example our webserver*, I can not access. Gives resolution
> error. For any other site, for example, google.com, I can access.
> I'm not finding the problem. Any idea?

Is this server configured to be authoriative for your domain? Does it 
have delegation records for the subdomains? It won't follow forwarders 
if the query is in a zone it's configured to be authoritative for.

Barry Margolin
Arlington, MA

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