[Pdns-users] Query Logging

[Max Clark]

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Odd business model but successful.

Some of the names that UltraDNS is currently charging per query to:

Forbes, Oracle, Myspace, SharperImage, Advertising.com, Dictionary.com, 
Amazon, etc...

https://www.ultradns.com/order/index.cfm?

- -Max

bert hubert wrote:
> On Thu, Sep 29, 2005 at 12:16:46PM -0700, Max Clark wrote:
> 
>>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?
> 
> 
> Odd business model. Oh well. If you want really low-weight stats, run
> 'tcpdump port 53 and udp' and process the output, perhaps using awk.
> 
> As other people said, turning on query logging massively increases the system
> load. 
> 
> There are some nameservers out there that can really hammer your server,
> tcpdump will also help you spot these.
> 
> Good luck!
> 
> 
>>- -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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> 
> 

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