child and forwarder

[Cricket Liu]

JULIEN Antoine <julien at info.enserb.u-bordeaux.fr> wrote in message
news:<7prcrq$r6t$1 at fu-berlin.de>...
>     I have a DNS (called "parent DNS") config with a forwarder to redirect
> request outside my domain. I install a child DNS (under "parent DNS") for
a
> subdomain (I add NS and A RR on "parent DNS"), all work fine. But, when I
> watch the network with tcpdump, I see (the command is a nslookup on parent
> machine: lookup for the child machine):
>
>     1) a connection between the parent DNS and his forwarder
>     2) a connection between the forwarder and the child DNS
>     3) a connection between the child and forwarder
>     4) and the response is given by the forwarder to the parent DNS
>
>     Why is this so complicated? Why the parent don't address directly his
> request to the child?

Because--repeat after me--"forwarding overrides delegation."  If you want to
change that behavior, you can use the new forward zones supported in BIND
8.2+.  Then you can configure the parent name server to resolve all domain
names under the parent zone iteratively, without using a forwarder.

cricket

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