Performance Tuning RHEL 5 and Bind
alan at clegg.com
Sun Oct 20 15:32:46 UTC 2013
On Oct 19, 2013, at 9:34 PM, brett smith <brett.s9999 at gmail.com> wrote:
> When all the Windows PC's are switched to our resolver, bind stops responding.
What does "stops responding" mean? Any logs?
> rndc querylog shows queries coming thru, I changed tcp-clients from
> 1000 to 10000 but DNS seems lagging, so we switched back to the
> original Windows Domain resolver.
Are you really getting that many TCP based queries? If so, something is seriously broken.
> Besides increasing open files
> tuning, what TCP / sysctl or named.conf settings can be set to
> optimize / speed up DNS queries? Because it seems that Windows clients
> use TCP instead of UDP when looking at netstat on the server.
Fix your windows clients.
Alan Clegg | +1-919-355-8851 | alan at clegg.com
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