I have configured a simple forward zone like the following in BIND:
zone "3.10.in-addr.arpa" {
type forward;
forward only;
forwarders { 1.2.3.4; } ;
};
This is the only zone I have configured.
When I query for, as an example, 1.2.3.10.inaddr.arpa (PTR), I expect BIND to
query the 1.2.3.4 forwarder and return the response provided by 1.2.3.4. With
BIND version 9.6.1-P1, this works as expected. However with version 9.9.1-P3,
BIND does not attempt to query the forwarder and instead immediately returns an
NXDOMAIN response.
I found that adding the following zone, in addition to or instead of the
original, produces the desired results:
zone "10.in-addr.arpa" {
type forward;
forward only;
forwarders { 1.2.3.4; } ;
};
However, I do not wish to send all 10.in-addr.arpa queries to the forwarder; I
only wish to send descendants of 3.10.in-addr.arpa there.
Is this a bug in BIND 9.9.1-P3? I do not understand why the only zone
configured would not be used, since it does appear to be the nearest (and only)
ancestor of the domain I am querying.
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