Why Bind searches two times before answearing?

[Kevin Darcy]

Danny Mayer wrote:

> At 09:11 PM 3/25/02, Kevin Darcy wrote:
>
> >Well, you say your forwarder "works great when directly contacted", but
> >the symptoms you describe sound more like the forwarder is taking too
> >long to answer the queries. What happens if you query the forwarder
> >directly from your nameserver? Is the response time reasonable? This
> >should mimic exactly what your nameserver is doing when resolving queries
> >for its clients.
>
> This isn't really true.  A nameserver uses all of it's own functions for
> resolving
> and never uses the O/S's resolver that other applications use.  It doesn't even
> look at resolv.conf. Since dig, lookup and host that come with BIND uses the
> same code as the nameserver they also do not follow the same functionality
> as a regular application.

Okay, fair enough. "Mimic exactly" was perhaps a little strong. But it gets
recursive queries going from one node to another in the right direction, and thus
is often useful as a troubleshooting step.


- Kevin