BIND conditional forwarding

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Hello All,

I am having BIND 9 on RHEL7.

I have configured my bind servers to forward the query to specific zones to internal AD DNS. However there are some records for that zones which are not in AD DNS but present on public DNS (google).
When clients querying for that record, bind is sending the request to AD DNS and due to recursive allowed AD DNS sending back to BIND. hence getting into loop.

Is there any way to configure and serve such request? I want to forward the query to public DNS if any query is coming from AD DNS to bind.
Can we configure conditional forwarders based on source instead of zones?
Thanks.

Regards,
Gyan

Gyan Shanker's picture
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thomas.jones2@dodiis.mil's picture Guru 6435 points
11 August 2016 10:01 PM

BIND does allow you to set up "views" based on client ACLs. I'm not sure what, specifically, to suggest since what I'm gleaning from the description of your setup doesn't make a lot of topological sense to me.

Gyan Shanker's picture Community Member 44 points
12 August 2016 7:45 AM

Hi Tom, Are you referring to "allow query" from clients via acl? I have that in place already. What am looking for is, how to configure so that any forwarded query coming from AD dns to bind can be forwarded again to public dns.

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