I guess I confuse easily...still Either I don't understand what it's doing,
or I don't understand why it's doing what it is, or what it's doing is
confused.
Sigh.
On 08-Jun-14 14:24, Evan Hunt wrote:
> On Sun, Jun 08, 2014 at 09:45:23AM -0400, Timothe Litt wrote:
>> Consider a continuous stream
On Sun, Jun 08, 2014 at 09:45:23AM -0400, Timothe Litt wrote:
> Consider a continuous stream of queries to a slow server. For the sake
> of exposition, assume the incremental adjustment is 1 rather than 5.
>
> Named drops the 11th query, but increases the limit.
It only increases the limit if on
On 07-Jun-14 12:36, Evan Hunt wrote:
> On Sat, Jun 07, 2014 at 12:02:24PM -0400, Jorge Fábregas wrote:
>> For me, this "clients-per-query" of 10 is an upper limit (maximum number
>> of clients before it starts dropping). So then, what's the purpose of
>> &quo
On 06/07/2014 12:36 PM, Evan Hunt wrote:
> Over time, as it runs, named tries to self-tune the clients-per-query
> value.
>
> If you set clients-per-query to 10 and max-clients-per-query to 100
> (i.e., the default values), that means that the initial limit will be
> 10, but i
On Sat, Jun 07, 2014 at 12:02:24PM -0400, Jorge Fábregas wrote:
> For me, this "clients-per-query" of 10 is an upper limit (maximum number
> of clients before it starts dropping). So then, what's the purpose of
> "max-clients-per-query"?
Over time, as it
Hi,
I'm trying to understand the difference between clients-per-query &
max-clients-per-query. I found a nice explanation by Mark Andrews here
[1] but then I wondered about max-clients-per-query.
Given a "clients-per-query" of 10, I assume that named will only queue
up 1
> >3000 devices isn't much, even for a modest BIND server. Did this
> >configuration work in the past? What changed? Is there a network rate
> >limiting device in place that could be affecting the queries to the
> >authoritative servers? Have you talked to your networking team? They
> >would n
Dwayne Hottinger wrote on 04/10/2013
10:27:24 AM:
> Sorry, My spambox grabbed your earlier reply, my apologies.My
> clients are a mixed enviroment of macs,windows 7/xp, androids, etc.
> At any one time I'll have over 3000 devices connected to the
> network. I actually have one internal
Sorry, My spambox grabbed your earlier reply, my apologies.My clients
are a mixed enviroment of macs,windows 7/xp, androids, etc. At any one
time I'll have over 3000 devices connected to the network. I actually have
one internal dns server for internal network and 2 external dns servers.
I tu
> From: Dwayne Hottinger
> I keep seeing messages in my named.log file that say things
> like clients-per-query increased to 30, then later it says clients-
> per-query decreased to a lower number. When this happens, lookups
> seem to not be working.What is an acceptable va
I keep seeing messages in my named.log file that say things
like clients-per-query increased to 30, then later it
says clients-per-query decreased to a lower number. When this happens,
lookups seem to not be working.What is an acceptable value for a large
network?
ddh
--
Dwayne Hottinger
On 09.04.13 13:56, Dwayne Hottinger wrote:
Ive started having some issues with one of my subnets. Im seeing messages
like the following in my log files:
clients-per-query increased to 15
This apply to recursive queries. Don't you have a malware on the network?
If not, this is ju
Ive started having some issues with one of my subnets. Im seeing messages
like the following in my log files:
clients-per-query increased to 15
I did a little googling and found where this is adjustable per the
named.conf. I currently dont have anything in my named.conf that outlines
this
There's a bit more information about how clients-per-query works in this
article here too - and importantly, make sure you're on a current
version of BIND to avoid a bug with it (but you'd be updating anyway for
CVE-2011-4313?):
https://www.isc.org/software/bind/advisories/cve-2
Hello,
Read the BIND ARM (Admin Ref. Manual) about these settings, but here is an
example of what I use:
clients-per-query 10 ;
max-clients-per-query 20 ;
http://www.isc.org/software/bind/documentation
Previously, this resource was posted on this list which is good info to
o:bind-users-bounces+jlightner=water@lists.isc.org] On Behalf Of Alan
Shackelford
Sent: Friday, November 18, 2011 10:32 AM
To: bind-users@lists.isc.org
Subject: Question About max-clients-per-query
I had a situation a couple of days ago where a compromised machine in the DMZ
portion of my netw
I had a situation a couple of days ago where a compromised machine in the DMZ
portion of my network began sending an incredible number of queries to a couple
of the primary internal DNS servers. The traffic was so intense that legitimate
queries were unable to get through, or the customer timed
In message <688460.82562...@web121414.mail.ne1.yahoo.com>, Fr34k writes:
> - Original Message
>
> > From: Mark Andrews
> > To: Fr34k
> > Cc: Bindlist
> > Sent: Wed, March 23, 2011 9:04:00 PM
> > Subject: Re: Q on clients-per-query, max-
>
> So, does BIND behave the same whether it is a single PC making 100 queries
> for
> the same record compared to 555 PCs making queries for the same record?
> That is, how does BIND treat "clients-per-query, max-clients-per-query"
> differently based upon the que
- Original Message
> From: Mark Andrews
> To: Fr34k
> Cc: Bindlist
> Sent: Wed, March 23, 2011 9:04:00 PM
> Subject: Re: Q on clients-per-query, max-clients-per-query
>
>
> In message <>, Fr34k writes:
> > Hello,
> >
> > # The ARM
In message <60834.75625...@web121403.mail.ne1.yahoo.com>, Fr34k writes:
> Hello,
>
> # The ARM says: #
> clients-per-query, max-clients-per-query
> These set the initial value (minimum) and maximum number of recursive
> simultaneous clients for any given query () th
Hello,
# The ARM says: #
clients-per-query, max-clients-per-query
These set the initial value (minimum) and maximum number of recursive
simultaneous clients for any given query () that the server
will accept before dropping additional clients. named will attempt to self tune
this value and
MontyRee wrote:
>
>
> So thanks for your kind reply.
>
> I'm curious the meaning of "given name".
> if clients query like below,
>
> # example.com zone
>
> abc.example.com/A
> www.abc.example.com/A
> exmaple.com/MX
The above are all different
To be 'the same' both the label (e.g. abc
ueries are much?
Thanks in advance.
>>
>> Hello, all.
>>
>> my system is centos 4.x, bind 9.5.1-P3 and only recursion is allowed from
>> some ranges.
>>
>> I can see lots of messages like below.
>> so if I didn't set any clients-per-query
In message , MontyRee writes:
>
> Hello, all.
>
> my system is centos 4.x, bind 9.5.1-P3 and only recursion is allowed from
> some ranges.
>
> I can see lots of messages like below.
> so if I didn't set any clients-per-query value,some clients' queries ma
Hello, all.
my system is centos 4.x, bind 9.5.1-P3 and only recursion is allowed from some
ranges.
I can see lots of messages like below.
so if I didn't set any clients-per-query value,some clients' queries may be
droppped or not?
If some queries can be dropped,I want to set lik
99, 25140481
security.jail.socket_unixiproute_only: 1
security.jail.allow_raw_sockets: 0
The only limits I set in named.conf is ttl-stuff (lame-ttl, max-ncache-ttl,
...), clients-per-query and recursive-clients
If I see the message again I'll let you know.
Philippe
__
At Thu, 14 May 2009 17:46:42 +0200,
"Philippe Maechler" wrote:
> > > I'm running a bind 9.4.2-p2 and a 9.5.1-P1 both on a
> > FreeBSD 6.x box
> > > as caching servers.
> > > let's call them ns1 and ns2 :P
> > >
> > > short after we shutdown server one we get error messages on
> > the other se
Hello Jeremy
> >
> > I'm running a bind 9.4.2-p2 and a 9.5.1-P1 both on a
> FreeBSD 6.x box
> > as caching servers.
> > let's call them ns1 and ns2 :P
> >
> > short after we shutdown server one we get error messages on
> the other server
> > -> socket: too many open file descriptors
>
> What
On Thu, 14 May 2009, Philippe Maechler wrote:
> Hello Everybody
>
> I'm running a bind 9.4.2-p2 and a 9.5.1-P1 both on a FreeBSD 6.x box as
> caching servers.
> let's call them ns1 and ns2 :P
>
> short after we shutdown server one we get error messages on the other server
> -> socket: too many o
igger" this error? (for testing)
something else that bothers me is the message:
resolver: clients-per-query increased to 105
how can I find out which clients and/or queries and/or remote servers are
responsible for this message?
should I do somethin
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