DNS cache issue

Adam Tkac atkac at redhat.com
Thu Nov 22 10:08:32 UTC 2007


On Thu, Nov 22, 2007 at 11:00:14AM +0100, Lars-Johan Liman wrote:
> Hi Adam and Paul,
> 
> I just want to clear up one detail, so that I'm sure I understand.
> 
> In the message qouted by Paul Vixie, Paul Wouters says:
> 
> paul at xelerance.com:
> > If you use a redhat/fedora bind 9.5 version, you must also add
> > the option:
> > 	edns: yes;
> 
> but according to Adam
> 
> atkac at redhat.com:
> > Of course, EDNS is enabled by default 
> 
> I see a contradiction here. If it's enabled by default in the Red Hat
> version, there shouldn't have to be a "MUST add" to enable it.
> 
> So, which way is it? :-)

If you don't specify edns option at all you have EDNS enabled. If you
specify "edns yes;" you have same behavior but your named.conf is
longer :)

Adam

> 
> (I'll bet the answer is "it depends ...". It always is. ;-)
> 
> 				Cheers,
> 				  /Liman
> #----------------------------------------------------------------------
> # There are 10 kinds of people in the world. Those who understand
> # binary numbers, and those who don't.
> #----------------------------------------------------------------------
> # Lars-Johan Liman, M.Sc.	! E-mail: liman at autonomica.se
> # Senior Systems Specialist     ! HTTP  : //www.autonomica.se/
> # Autonomica AB, Stockholm 	! Voice : +46 8 - 615 85 72
> #----------------------------------------------------------------------

-- 
Adam Tkac, Red Hat, Inc.


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