Problem with forwarding reverse DNS queries
Kevin Darcy
kcd at daimlerchrysler.com
Mon May 14 22:11:08 UTC 2001
bweaver at orincon.com wrote:
> Hi all,
>
> Need some help with my current DNS config. I currently have 2 DNS forward
> only servers on the DMZ of my network. They forward in to a master and
> slave DNS server. I pointed all forward DNS queries to go straight to the
> two forwarders and all works well. I am encountering problems with my
> reverse queries. I have ARIN pointing to my upstream provider (icg), and
> they point to my two dns servers on the DMZ. When a query comes in the
> forwarder will respond that it does not know the A record. An nslookup on
> the machine will yeild the correct name. Once the name is then in the
> cache all works well from outside queries. Any help would be appreciated.
You can't get reliable nameservice by delegating a domain to a forwarder.
This is because most nameserver-to-nameserver queries are non-recursive. You
should replace the forwarding arrangements with master/slave arrangements for
both your forward and reverse zone.
BTW, reverse records are PTR records, not A records.
- Kevin
More information about the bind-users
mailing list