Date: Fri, 5 Apr 2002 13:15:14 +1000 (EST) From: Andy Farkas <andyf@speednet.com.au> To: <Mark.Andrews@isc.org> Cc: <hawkeyd@visi.com>, stable at FreeBSD <freebsd-stable@FreeBSD.ORG> Subject: Re: named connections "in vain" Message-ID: <Pine.BSF.4.33.0204051307520.39553-100000@backup.af.speednet.com.au> In-Reply-To: <200204050259.g352xAx73104@drugs.dv.isc.org>
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On Fri, 5 Apr 2002 Mark.Andrews@isc.org wrote:
> > Named is replying to itself, not a client, ie. the host at 192.168.16.2
> > made a request to 192.168.16.2 which timed-out.
>
> You can have *both* the server and clients on the same box.
Yes. What I really meant to say is "named is replying to a client on the
same host, ie...." - I had meant to come back and amend that sentance on
my original email but forgot...
> > I think it has something to do with the resolver library having a short
> > time-out value and named having a longer one.
>
> The resolver timeout is large enough that for 99.99% of queries
> where there is not misconfiguration or otherwise broken server
> involved in the resolution process it will complete before
> the resolver gives up. Multiple broken servers can cause the
> resolution process to exceed the timeouts of the resolver.
So, the main reason why my mailserver spits out these log-in-vain messages
all the time is because of other broken name servers? I thought so...
> > Do you know if in fact there are separate time-out values for the resolver
> > library and named?
>
> Yes they are different.
Hmmm... what if you bumbed up the resolvers' time-out value? Where would
one find this parameter?
ps. if this is too off-topic, let me know...
--
:{ andyf@speednet.com.au
Andy Farkas
System Administrator
Speednet Communications
http://www.speednet.com.au/
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