[Pdns-users] pdns-recursor peering

Patrick Domack patrickdk at patrickdk.com
Fri Oct 12 14:27:09 UTC 2007

I suppose if you didn't care about memory, you could push the incoming  
replies each server receives to the other servers. Then you wouldn't  
have to check each server or have a time issue.

Quoting Jan Gyselinck <pdns-users at lists.b0rken.net>:

> On Fri, Oct 12, 2007 at 12:30:11PM +1000, Mick Pollard wrote:
>> Hi all,
>> I have been asked to put together a suggestion for a new   
>> caching-dns setup for our company.
>> I have had a look at the recursor.conf options and can't find   
>> anything to help.
>> We will have a hardware load balancer with x amount of servers   
>> running pdns-recursor behind it..
>> What I want to know is: Can I set my pdns-recursor servers to check  
>>  each others cache before asking the root zones ?
> No you can't.  I know Bert was toying around with a couple of ideas
> in that direction, the main problem is the fact that checking locally
> (before fetching it from the right location) costs time and thus
> increases the query-response latency.  In practice the problem seems
> to be a moot point, you surely are not the only one with a load
> balancer setup with x amount of servers behind it, and the other open/free
> big DNS resolver implementations don't support 'peering' either.
> Regards
> Jan Gyselinck
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