DNS latency!!!

[Shiva Raman]

Hi All

 

  Which is the best method to measure dns latency ? Is there any scripts / programs

available to measure the dns latency directly?

 

 

Regards

 

Shiva Raman

[Barry Margolin]

In article <mailman.342.1281936...@lists.isc.org>,
Shiva Raman <raman....@gmail.com> wrote:

> Hi All
>
> Which is the best method to measure dns latency ? Is there any scripts /
> programs
> available to measure the dns latency directly?

Google Namebench.

--
Barry Margolin, bar...@alum.mit.edu
Arlington, MA
*** PLEASE don't copy me on replies, I'll read them in the group ***

[Yohann Lepage]

2010/8/16 Shiva Raman <raman....@gmail.com>
> Hi All
Hi,

>   Which is the best method to measure dns latency ? Is there any scripts / programs
> available to measure the dns latency directly?

- queryperf :
/bind-9.7.1-P2/contrib/queryperf/
- dnsperf :
http://www.nominum.com/services/measurement_tools.php
-DNS benchmark
http://www.grc.com/dns/benchmark.htm
-And if you have money :
http://www.spirent.com/Solutions-Directory/Avalanche.aspx

Regards,
Yohann

>
> Regards
>
> Shiva Raman

[Stefan Schmidt]

On Aug 16, 2010, at 11:55 , Yohann Lepage wrote:

> 2010/8/16 Shiva Raman <raman....@gmail.com>

>> Which is the best method to measure dns latency ? Is there any scripts / programs
>> available to measure the dns latency directly?

I would like to remind people of the most obvious one: dig

sh-4.1$ dig localhost

; <<>> DiG 9.7.1-P2 <<>> localhost
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 23311
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;localhost. IN A

;; ANSWER SECTION:
localhost. 86400 IN A 127.0.0.1

;; Query time: 0 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Wed Aug 18 11:30:12 2010
;; MSG SIZE rcvd: 43

See the Query time column.

Stefan