Bind9 logging options

Todd Snyder tsnyder at rim.com
Mon May 17 13:09:46 UTC 2010


Are the timed out queries recursive or authoritative?

I'd suggest tcpdump running on both the BIND servers and the client, so
you can match send/receive and show missed packets directly.

Cheers,

Todd.

-----Original Message-----
From: bind-users-bounces+tsnyder=rim.com at lists.isc.org
[mailto:bind-users-bounces+tsnyder=rim.com at lists.isc.org] On Behalf Of
Techi
Sent: Monday, May 17, 2010 6:39 AM
To: bind-users at lists.isc.org
Subject: Bind9 logging options

Hallo,
I have a problem in my recursive DNS servers (Bind 9, on RHEL 5).
Intalled 
package on my system is the latest bind-9.3.6-4.P1.el5_4.2 from Red Hat.
My 
problem is that sometimes, queries are failed with timeouts and that the
one 
of my 2 DNS servers (the one set as primaryin my users) has 3 time more
failed 
queries than the secondary, while the succesful queries are almost the
same. . 
I am almost sure that the problem is network related (hardware or
software), 
but I need a proof for that. Is there any way to log the timed-out
queries in 
a log file? 

Thank you
Techi
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