I would honestly look for a typo since you're saying that it does work
for some. Either way unless the admin turn it off you will get
zone-transfers, the question lies in wether your name-server accepts
them and propagates them down.
Check in the log for transfer or notification refusals and make
My server works as a secondary for a zone. I asked the master server's
admin to stop the zone transfer; I didn't get any reply and thus
commented out the zone's section in my named.conf. But I'm still
getting zone files coming in to my server.
Here is what I have commented out:
# zone "example.c
After feedback and running some tests today I've found that the most
"cost-effective" approach as far as performance goes is to use the
native querylog and rotate it often enough to have as "live" data as
possible.
Some quick notes (all tests done with perl):
- Parse the querylog 500 000k queries:
I have read the other posts here, and it looks like you are setting on
tail, or a pipe, but that log rotation is causing you headaches.
I have had to deal with things like this in the past, and took a
different approach. Here are some ideas to think about.
Since you mentioned below you wan
Ah i.e. I'm using an incorrect logfacility... that would explain things.
Either way, I did try to parse tcpdump for queries, the problem I'm
getting is that perl isn't the best option for this so I'm going to
look into wether things could get sped up with python or something.
/Jonathan
2009/4/28
On Tue, 28 Apr 2009, Jonathan Petersson wrote:
> I did try to run the following option:
> syslog named;
syslog should define a "syslog facility".
Look in the openlog, syslog and/or syslog.conf manual pages to see lists
of facilities. The ARM says: " The syslog destination clause directs the
c
I did try to run the following option:
syslog named;
but when matching on named.* in syslog.conf there's no output.
/Jonathan
2009/4/28 JINMEI Tatuya / 神明達哉 :
> At Tue, 28 Apr 2009 10:01:02 -0700,
> Jonathan Petersson wrote:
>
>> So I gave tail a try in perl both via File::Tail and by putting t
At Tue, 28 Apr 2009 10:01:02 -0700,
Jonathan Petersson wrote:
> So I gave tail a try in perl both via File::Tail and by putting tail
> -f in a pipe. Neither seems to be handling the logrotation well. In my
> case I'm running a test sending 1 million queries, of those half is
> picked up by File::
Just realized something else, since I'm using perl in this case it's
going to be a permament bottleneck regardless of wether I use
syslog/tcpdump/querylog, it just isn't quick enough for that kind of
data-flow...
Back to the drawing-board
/Jonathan
On Tue, Apr 28, 2009 at 10:49 AM, Jonathan Pete
I don't think the cost is that great having querylogging enabled,
running the same test using dnsperf there's a 43% performance-increase
but 70 000 queries per second is still acceptable with query-logging
enabled.
/Jonathan
On Tue, Apr 28, 2009 at 10:05 AM, Alan Clegg wrote:
> Jonathan Petersso
Jonathan Petersson wrote:
> So I gave tail a try in perl both via File::Tail and by putting tail
> -f in a pipe.
As was stated previously in this thread, you are going down a bad path
by using query-log for any purpose beyond short debugging sessions.
The loss in performance is rather painful.
T
So I gave tail a try in perl both via File::Tail and by putting tail
-f in a pipe. Neither seems to be handling the logrotation well. In my
case I'm running a test sending 1 million queries, of those half is
picked up by File::Tail if you define how often it should re-read the
file but using tail -
On Tue, 28 Apr 2009, Gregory Hicks wrote:
From: Jonathan Petersson
Date: Tue, 28 Apr 2009 08:13:25 -0700
Subject: Re: approach on parsing the query-log file
To: niall.orei...@ucd.ie
Cc: Bind Mailing
Yeah I've thought about using tail but I'm not sure how locking would
be managed when logrot
> From: Jonathan Petersson
> Date: Tue, 28 Apr 2009 08:13:25 -0700
> Subject: Re: approach on parsing the query-log file
> To: niall.orei...@ucd.ie
> Cc: Bind Mailing
>
> Yeah I've thought about using tail but I'm not sure how locking would
> be managed when logrotate kicks in, does anyone know
Yeah I've thought about using tail but I'm not sure how locking would
be managed when logrotate kicks in, does anyone know?
On Tue, Apr 28, 2009 at 3:41 AM, Niall O'Reilly wrote:
> On Mon, 2009-04-27 at 22:26 -0700, Jonathan Petersson wrote:
>> The obvious question that occurs is; What would be w
The problem I'm seeing with this is that we'll get data that may be
inconsistent. Just because a query is sent to a server doesn't mean
that there's a name-server there to answer, I believe querying the
log-file one way or another would give a more accurate picture of load
etc.
On Tue, Apr 28, 200
I would like to CNAME like below.
example.com. IN CNAMEexample2.com.
But I know that this is wrong.
then, is there any way or solution to solve this problem?
I searched and found that below is a similar solution.
* IN CNAMEexample2.com.
On Apr 28, 2009, at 2:39 AM, Larry wrote:
MontyRee wrote:
Hello, all.
I would like to CNAME like below.
example.com. IN CNAMEexample2.com.
But I know that this is wrong.
then, is there any way or solution to solve this problem?
I searched and found that below is a si
On Tue, 2009-04-28 at 04:46 +, MontyRee wrote:
> If I set like below,
>
> example.com. IN DNAMEexample2.com
>
> IP addreess of example.com is 192.168.1.2
>
>
> 1. if client resolver use bind 8 or below old version.
>What would be happen?
>Can recognize DNAM
On Mon, 2009-04-27 at 22:26 -0700, Jonathan Petersson wrote:
> The obvious question that occurs is; What would be what's the best
> approach to do this?
I've not used it, but a colleague is very keen on File::Tail
(http://search.cpan.org/~mgrabnar/File-Tail-0.99.3/Tail.pm).
On Apr 28, 2009, at 5:26 AM, Jonathan Petersson wrote:
Hi all,
I'm thinking of writing a quick tool to archive the query-log in a
database to allow for easier reports.
If it were me, I would turn off query logging and use a packet sniffer.
Chris Buxton
Professional Services
Men & Mice
__
IIRC it's 3 seconds.
On Tue, Apr 28, 2009 at 12:42 AM, Jeff Pang wrote:
> When a Bind requests another Bind for a name resolving, what's the
> timeout value for this resuest?
> I mean, within how many seconds peer Bind doesn't answer it, this Bind
> will give up the query?
>
> Thanks.
> Regards.
When a Bind requests another Bind for a name resolving, what's the
timeout value for this resuest?
I mean, within how many seconds peer Bind doesn't answer it, this Bind
will give up the query?
Thanks.
Regards.
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