You can also put "options rotate" in resolv.conf if you want to spread out the 
load on the servers.

On Oct 22, 2012, at 6:27 AM, Paolo Supino wrote:
> It's not that I don't want to upgrade. I would love to upgrade, but
> I'm restricted to what RHN has to offer on the RHEL 5.x channel  :-(
> 
> My next step is indeed to offer to put a caching server locally...
> 
> 
> Thanx
> Paolo
> 
> 
> 
> On Mon, Oct 22, 2012 at 1:56 PM, Rainer Gerhards
> <[email protected]> wrote:
>>> It was brought to my attention that our centralized syslog server
>>> (running rsyslog 3.22.1) is creating a lot of DNS queries toward one
>>> of our DNS servers (the first one listed in /etc/resolv.conf). From a
>>> first look at the amount of queries generated it seems that for every
>>> message received rsyslog creates a DNS query. Is my assumption
>>> correct?
>> 
>> yes
>>> 
>>> I'm only trying to get confirmation for my first (on the quick)
>>> assumption. Not (yet) how to change (i.e. reduce) the situation.
>> 
>> If you do not want to upgrade to a current version, folks have solved this 
>> with caching resolvers.
>> 
>> Rainer
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-- 
Jo Rhett
Net Consonance : net philanthropy to improve open source and internet projects.



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