Re: Performance tuning

2012-11-26 Thread Doug Barton
What a delightfully vague requirement. :) I would push back a bit on exactly what problems are attempted to be solved here. The BIND defaults are about as efficient as they can be, especially so in later versions. Doug On 11/26/2012 11:01 AM, Adamiec, Lawrence wrote: > Hi, > > I have been task

Re: Performance tuning

2012-11-26 Thread Adamiec, Lawrence
To the best of my knowledge, there are no problems with our DNS. We only host 25 domains. The report must also address these two specific questions: 1. Why does www.kentlaw.iit.edu load quicker than kentlaw.iit.edu in any browser? 2. What happens if we remove the forwarders option from

RE: Performance tuning

2012-11-26 Thread Lightner, Jeff
. From: bind-users-bounces+jlightner=water@lists.isc.org [mailto:bind-users-bounces+jlightner=water@lists.isc.org] On Behalf Of Adamiec, Lawrence Sent: Monday, November 26, 2012 1:13 PM To: bind-users@lists.isc.org Subject: Re: Performance tuning To the best of my knowledge, there are no

Re: Performance tuning

2012-11-26 Thread Sten Carlsen
On 26/11/12 19:12, Adamiec, Lawrence wrote: > To the best of my knowledge, there are no problems with our DNS. We > only host 25 domains. > > The report must also address these two specific questions: > > 1. Why does www.kentlaw.iit.edu load > quicker than kentla

Re: Performance tuning

2012-11-26 Thread Sten Carlsen
external access does not depend on fast DNS, you need to focus on the web server. > > > > *From:*bind-users-bounces+jlightner=water@lists.isc.org > [mailto:bind-users-bounces+jlightner=water@lists.isc.org] *On > Behalf Of *Adamiec, Lawrence > *Sent:* Monday, November 26, 2

Re: Performance tuning

2012-11-26 Thread Edward DeLargy
e in > overall timing. > > ** ** > > *From:* bind-users-bounces+jlightner=water@lists.isc.org [mailto: > bind-users-bounces+jlightner=water@lists.isc.org] *On Behalf Of *Adamiec, > Lawrence > *Sent:* Monday, November 26, 2012 1:13 PM > *To:* bind-users@lists

RE: Performance tuning

2012-11-26 Thread Ben Croswell
practice I doubt it is likely to be of major importance in > overall timing. > > ** ** > > *From:* bind-users-bounces+jlightner=water@lists.isc.org [mailto: > bind-users-bounces+jlightner=water@lists.isc.org] *On Behalf Of *Adamiec, > Lawrence > *Sent:* Monday, Novem

Re: Performance tuning

2012-11-26 Thread Chuck Swiger
Hi-- On Nov 26, 2012, at 10:12 AM, Adamiec, Lawrence wrote: > The report must also address these two specific questions: > > • Why does www.kentlaw.iit.edu load quicker than kentlaw.iit.edu in any > browser? > • What happens if we remove the forwarders option from named.conf? > I can

Re: Performance tuning

2012-11-26 Thread Leonardo Santagostini
I see no problems. [ec2-user@domU-12-31-39-06-2E-64 ~]$ time dig www.kentlaw.iit.edu ; <<>> DiG 9.7.0-P2-RedHat-9.7.0-5.P2.6.amzn1 <<>> www.kentlaw.iit.edu ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 54160 ;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUT

Re: Performance tuning

2012-11-26 Thread Adamiec, Lawrence
Thanks to everyone who replied. Larry On Mon, Nov 26, 2012 at 1:25 PM, Leonardo Santagostini < lsantagost...@gmail.com> wrote: > I see no problems. > > [ec2-user@domU-12-31-39-06-2E-64 ~]$ time dig www.kentlaw.iit.edu > > ; <<>> DiG 9.7.0-P2-RedHat-9.7.0-5.P2.6.amzn1 <<>> www.kentlaw.iit.edu

Re: Performance tuning

2012-11-27 Thread WBrown
"Adamiec, Lawrence" wrote on 11/26/2012 01:12:48 PM: > To the best of my knowledge, there are no problems with our DNS. We > only host 25 domains. > > The report must also address these two specific questions: > > 1. Why does www.kentlaw.iit.edu load quicker than kentlaw.iit.edu in > any bro

Re: Performance tuning

2012-11-27 Thread Adamiec, Lawrence
Hi, My original post was about writing a report to optimize our DNS servers and the report needed to address two questions. Based on the answers I received, I will write our servers are already optimized and no further tuning is needed. Now about the two specific questions for the report. Q1 --

Re: Performance tuning

2012-11-28 Thread Carsten Strotmann
"Adamiec, Lawrence" writes: Hello Lawrence, you problems might not be related to the configuration of your DNS Server software (BIND), but it can be related to your internal name resolution inside your organisation (forwarders, caches, mixed caching/authoritative DNS etc). Do you see the speed

Re: Performance Tuning RHEL 5 and Bind

2013-10-19 Thread sthaug
> 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

Re: Performance Tuning RHEL 5 and Bind

2013-10-19 Thread brett smith
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

Re: Performance Tuning RHEL 5 and Bind

2013-10-19 Thread Steven Carr
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.

Re: Performance Tuning RHEL 5 and Bind

2013-10-20 Thread Alan Clegg
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

RE: Performance Tuning RHEL 5 and Bind

2013-10-20 Thread Stuart Browne
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

Re: Performance Tuning RHEL 5 and Bind

2013-10-21 Thread WBrown
> From: Alan Clegg > Fix your windows clients. You can't fix stupid. Confidentiality Notice: This electronic message and any attachments may contain confidential or privileged information, and is intended only for the individual or entity identified above as the addressee. If you are not

RE: Performance Tuning RHEL 5 and Bind

2013-10-21 Thread Lightner, Jeff
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

Re: Performance Tuning RHEL 5 and Bind

2013-10-22 Thread Alan Clegg
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

Re: Performance Tuning RHEL 5 and Bind

2013-10-22 Thread Mike Hoskins (michoski)
-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

Re: Performance Tuning RHEL 5 and Bind

2013-10-22 Thread Kevin Darcy
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

Re: Performance Tuning RHEL 5 and Bind

2013-10-22 Thread brett smith
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

Re: Performance Tuning RHEL 5 and Bind

2013-10-22 Thread Alan Clegg
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

Re: Performance Tuning RHEL 5 and Bind

2013-10-24 Thread Carsten Strotmann
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

Re: Performance Tuning RHEL 5 and Bind

2013-10-28 Thread 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. W

Re: Performance Tuning RHEL 5 and Bind

2013-10-28 Thread Alan Clegg
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

Re: Performance Tuning RHEL 5 and Bind

2013-10-28 Thread Charles Swiger
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

Re: Performance tuning tips required for bind 9.6.1-P3!!!

2010-07-13 Thread Dave Sparro
On 7/13/2010 1:11 PM, Shiva Raman wrote: Dear All This is in reference to the performance tuning , i had already gone through the mailing list archives , but could not find answer to my specific query mentioned here. Right now i am using queryperf to test the performance with sample query fi