Some questions about bind
Barry Margolin
barmar at alum.mit.edu
Tue May 4 18:47:55 UTC 2004
In article <c78i3d$11km$1 at sf1.isc.org>,
Chris Cox <chris_cox at stercomm.com> wrote:
> Jeff Lasman wrote:
> ...
> >
> >
> > It will stop after it receives it's first response, whether that
> > response is authoritative, non-authoritive, or NXDOMAIN.
>
> Except on Linux where there are SERIOUS problems with
> the resolver.
We're explaining the behavior of recursive nameservers, not resolvers.
>
> You'll find the resolver making needless queries to the
> nameserver for names that CANNOT exist.
>
> Try running ethereal and do a query for an unqualified
> name. Why on earth does Linux attempt to send the unqualified
> name to the nameservers?? It's like it's set to ndots=0.
> But it's not. It's hard to figure out what it is doing???
> You can imagine the delays caused if one of the nameservers
> is down.
If the resolver automatically appended a domain suffix, and that name
doesn't exist, it's supposed to try the name as originally given.
--
Barry Margolin, barmar at alum.mit.edu
Arlington, MA
*** PLEASE post questions in newsgroups, not directly to me ***
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