[Pdns-users] Query Logging
Max Clark
max at clarksys.com
Thu Sep 29 19:16:46 UTC 2005
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So then crazy question... Companies like UltraDNS, Netriplex,
DNSMadeEasy, etc... make money based on the number of queries a
particular domain/RR gets. How do they track this?
- -Max
Brad Knowles wrote:
> At 11:19 AM -0700 2005-09-29, Max Clark wrote:
>
>> I have a powerdns installation with a large amount of domains running on
>> the system. Recently the system has become completely overwhelmed with
>> queries (I am assuming that it is due to low ttl's). While the web
>> interface gives a lot of great information - is it possible to log each
>> query request to a running file for after the fact analysis?
>
>
> I'm not familiar with the PowerDNS implementation of query logging,
> but for BIND turning this on will result in roughly a factor of ten to a
> hundred increase in load on the server. This is a result of the massive
> increase in I/O caused by writing all this data to the file.
>
> If you can afford to turn on query logging, you don't need it. If
> you need it, you can't afford to turn it on.
>
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