Performance Tuning RHEL 5 and Bind

[brett smith]

OK I have the source of the problem now I just need an elegant way to
fix it and most cost ( Network TCP ) effective way to fix it

The Windows Domain is responsible for X.internal.example.com and I am
presently forwarding  X.internal.example.com to their nameservers DC,
resulting in TCP queries. Which is dragging the cache server down when
PC's query for records off of [NAME].internal.example.com. I don't
mind not caching X.internal.example.com so can I create an NS record
or an stub entry that points the PC's else where rather than
forwarding them or caching them?

Thank You,
Brett

On Tue, Oct 22, 2013 at 9:39 PM, Alan Clegg <alan at clegg.com> wrote:
>
> On Oct 22, 2013, at 8:29 PM, brett smith <brett.s9999 at gmail.com> wrote:
>
>> Yes tuning off IPTABLES conn-tracking makes a huge difference. I also followed:
>>
>> https://access.redhat.com/site/solutions/304713
>> https://access.redhat.com/site/solutions/168483
>>
>> I still see some SYN_SENT from Windows PC's on tcp port 53 on the DNS
>> cache server.
>
> You've cured the symptoms, not the illness.
>
> You really, REALLY need to figure out why your clients are doing TCP.  You'll see a world of difference when you solve this part of the puzzle.
>
> AlanC
> --
> Alan Clegg | +1-919-355-8851 | alan at clegg.com
>
>
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