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 <[EMAIL PROTECTED]>:
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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