bind returns empty record first time
Ronan Flood
ronan at noc.ulcc.ac.uk
Tue Apr 12 18:08:56 UTC 2005
Captain Dondo <yan at NsOeSiPnAeMr.com> wrote:
> What's a recursive query? I know recursion, but I'm having a hard time
> applying it to a DNS lookup... I always thought DNS queries were
> flat-file, or store-and-forward....
A query with the Recursion Desired (rd) flag set: you can see this in
the example dig output you had, and also that the ISP servers respond
without the Recursion Available (ra) flag in the reply.
A recursive query means the client expects the server to go out and
search the DNS for the answer. See, for example,
http://www.zytrax.com/books/dns/ch2/#recursive
or many other docs.
--
Ronan Flood <R.Flood at noc.ulcc.ac.uk>
working for but not speaking for
Network Services, University of London Computer Centre
(which means: don't bother ULCC if I've said something you don't like)
More information about the bind-users
mailing list