disableing EDNS messages bind-9.5.0

Matus UHLAR - fantomas uhlar at fantomas.sk
Wed Jan 28 08:09:44 UTC 2009


> Dean Clapper wrote:
> >I'm trying to troubleshoot why we are getting a lot of disabling EDNS 
> >messages in /var/log/messages.
> >
> >We are running bind-9.5.0.P2 on a linux box.
[...]
> >Jan 27 11:43:39 ns0 named[27764]: too many timeouts resolving 
> >'196.198.117.216.zen.spamhaus.org/A' (in 'zen.spamhaus.org'?): 
> >disabling EDNS
> >
> >I started receiving these messages after updating from 9.4 -> 9.5. 
> >I've found a couple places to test packet sizes, but have not had any 
> >problem. The messages about zen.spamhaus.org leads me to possibly 
> >email related issues.

On 28.01.09 08:04, Danny Thomas wrote:
> add "category edns-disabled { null; };"
> after verifying your nameserver(s) have an EDNS0 clear path
> by trying the 2 tests mentioned below by Mark Andrews.

I strongly recommend you upgrading the BIND first. Later versions issue that
message much less often. 


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Matus UHLAR - fantomas, uhlar at fantomas.sk ; http://www.fantomas.sk/
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