DNS recursion question while studying for 70-293

Tech-Archive recommends: Fix windows errors by optimizing your registry

From: Kevin Porter <kporter@xxxxxxxx>
Date: Fri, 17 Mar 2006 14:24:24 -0700

Ok, I think I understand that if I have a server with a couple of forwarders
configured and recursion disabled, it will query the servers listed as
forwarders and then return a negative if it can't resolve the query with the
forwarders.

My question is about the servers that are queried as forwarders (DNS B & C): if
those servers do not have recursion disabled, will they use recursion to answer
the query? Or is there something special about the query that tells the servers
to only answer if they themselves know the answer or are authoratative?

(forwarders)
workstation -> DNS A ----- DNS B
\
\---DNS C

Thanks - Kevin

.

Follow-Ups:
- Re: DNS recursion question while studying for 70-293
  - From: Wayne

Prev by Date: Re: OT: Firday Funnie
Next by Date: Obtain MCSE certification without exams(PAY AFTER CHECKING RESULT)100%passing gaurantee
Previous by thread: test king 70-294 pdf (16 feb 2006) 16.1 mb
Next by thread: Re: DNS recursion question while studying for 70-293
Index(es):
- Date
- Thread

Relevant Pages

Re: DNS stops resolving
... We've always used forwarders. ... As far as DNS suffixes, ... "append parent suffixes of the primary DNS suffix" ... I'm talking about the AD integrated internal DNS servers here. ...
(microsoft.public.win2000.dns)
Re: W2k3 DNS initial design
... I would configure Forwarders at the root DNS servers, ... Forwarders do not respond anyway, ...
(microsoft.public.windows.server.dns)
Re: AD-Integrated DNS - Root Hints, Forwarders, Confused!
... if you want that servers ony try to resolve all names in HQ servers make ... to the two HQ DNS servers and remove the root hints from the branch DNS ... forwarders and the best configuration for our environment. ...
(microsoft.public.windows.server.dns)
Re: DNS recursion question while studying for 70-293
... it will query the servers listed as ... forwarders and then return a negative if it can't resolve the query with ... My question is about the servers that are queried as forwarders (DNS B & ... those servers do not have recursion disabled, ...
(microsoft.public.cert.exam.mcse)
Re: Bind slowdown
... > Just today I noticed huge Bind (DNS) query slowdown, ... > Actually this is strange because if i use dig it shows reasonable query ... The delays may be caused by a wrong forwarder entry (maybe the ISP has ... Try to run your server without forwarders enabled, ...
(comp.os.linux.networking)