Hi—
On Oct 28, 2013, at 9:05 PM, Alan Clegg wrote:
> Slave X.internal.example.com
+1; it’s also worth looking into why there is such a high volume
of DNS queries. Is it simply a big network with a lot of chatty
clients? Or is TTL turned down so low that client side caching
is not effective and
On Oct 28, 2013, at 8:08 PM, brett smith wrote:
> 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.exa
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. W
Hi,
Kevin Darcy writes:
> Are these queries mostly for names in an Active Directory domain? The
> default for Active Directory is for *every* Domain Controller to
> register NS records at the apex of the AD domain. Pretty soon, for any
> reasonably-sized AD infrastructure, all of those NSes cau
On Oct 22, 2013, at 8:29 PM, brett smith 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
t; Sent: Sunday, 20 October 2013 12:35 PM
>> To: sth...@nethelp.no
>> Cc: bind-users@lists.isc.org
>> Subject: Re: Performance Tuning RHEL 5 and Bind
>>
>> When all the Windows PC's are switched to our resolver, bind stops
>> responding.
>> rndc queryl
Are these queries mostly for names in an Active Directory domain? The
default for Active Directory is for *every* Domain Controller to
register NS records at the apex of the AD domain. Pretty soon, for any
reasonably-sized AD infrastructure, all of those NSes cause *all*
queries for *any* name
-Original Message-
From: Alan Clegg
Date: Tuesday, October 22, 2013 7:44 AM
To: "bind-users@lists.isc.org"
Subject: Re: Performance Tuning RHEL 5 and Bind
>On Oct 21, 2013, at 9:47 AM, wbr...@e1b.org wrote:
>
>>> From: Alan Clegg
>>
>>> Fix yo
On Oct 21, 2013, at 9:47 AM, wbr...@e1b.org wrote:
>> From: Alan Clegg
>
>> Fix your windows clients.
>
> You can't fix stupid.
I have lots of windows clients and they don't exhibit this "feature". There's
something wrong on the windows clients and it's not the norm.
To be honest, recent w
Original Message-
From: bind-users-bounces+jlightner=water@lists.isc.org
[mailto:bind-users-bounces+jlightner=water@lists.isc.org] On Behalf Of
wbr...@e1b.org
Sent: Monday, October 21, 2013 9:47 AM
To: bind-users@lists.isc.org
Subject: Re: Performance Tuning RHEL 5 and Bind
> F
> From: Alan Clegg
> Fix your windows clients.
You can't fix stupid.
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o
> Cc: bind-users@lists.isc.org
> Subject: Re: Performance Tuning RHEL 5 and Bind
>
> When all the Windows PC's are switched to our resolver, bind stops
> responding.
> rndc querylog shows queries coming thru, I changed tcp-clients from
> 1000 to 1 but DNS seems lagging, s
On Oct 19, 2013, at 9:34 PM, brett smith 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 1 but DNS seems lagging, so we swi
On 20 October 2013 02:34, brett smith wrote:
> When all the Windows PC's are switched to our resolver, bind stops responding.
> rndc querylog shows queries coming thru, I changed tcp-clients from
> 1000 to 1 but DNS seems lagging, so we switched back to the
> original Windows Domain resolver.
When all the Windows PC's are switched to our resolver, bind stops responding.
rndc querylog shows queries coming thru, I changed tcp-clients from
1000 to 1 but DNS seems lagging, so we switched back to the
original Windows Domain resolver. Besides increasing open files
tuning, what TCP / sysc
> I need to build a pair DNS cache servers to support 5000+ clients (
> PC's and Servers ). I have been looking for some guides on tuning
> BIND and the OS for Enterprise performance rather than the defaults.
> The version of bind is bind-9.8.2.
5000 clients is such a low number that I don't thin
I need to build a pair DNS cache servers to support 5000+ clients (
PC's and Servers ). I have been looking for some guides on tuning
BIND and the OS for Enterprise performance rather than the defaults.
The version of bind is bind-9.8.2.
Thank You,
Brett
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