What can cause excessive amount of _dns-sd queries?

2012-08-23 Thread Eivind Olsen
Hello. I haven't seen this before.. I'm currently seeing someone (1 ip address) do about 2.1 million queries / hour where a majority of the queries seem to be: b._dns-sd._udp.0.129.16.172.in-addr.arpa IN PTR + db._dns-sd._udp.0.129.16.172.in-addr.arpa IN PTR + r._dns-sd._udp.0.129.16.172.in-addr.

Re: What can cause excessive amount of _dns-sd queries?

2012-08-23 Thread Torsten Segner
Am Thu, 23 Aug 2012 13:43:32 +0200 schrieb "Eivind Olsen" : > Hello. > > I haven't seen this before.. I'm currently seeing someone (1 ip address) > do about 2.1 million queries / hour where a majority of the queries seem > to be: > > b._dns-sd._udp.0.129.16.172.in-addr.arpa IN PTR + > db._dns-sd

Re: What can cause excessive amount of _dns-sd queries?

2012-08-23 Thread Eivind Olsen
Torsten Segner wrote: > these seem to be DNS Service Discovery requests and yes, we see loads of > them on our servers. Yeah, now I'm just wondering which OS / application / malware / whatever could be responsible for this :) (no, the client isn't directly under my control, it belongs to some cu

Re: What can cause excessive amount of _dns-sd queries?

2012-08-23 Thread WBrown
Elvind wrote on 08/23/2012 09:18:06 AM: > Yeah, now I'm just wondering which OS / application / malware / whatever > could be responsible for this :) Someone trying to use ZeroCOnf: http://zeroconf.org I believe Macs come configured to use it by default, Linux and Windows can be configured to

RE: What can cause excessive amount of _dns-sd queries?

2012-08-23 Thread Lightner, Jeff
Maybe blocking access by that IP will force the customer's tech folks to contact you? -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: Thursday, August 23, 20

What can cause excessive amount of _dns-sd queries?

2012-08-23 Thread Manson, John
Good explanation of Service Discovery: http://www.dns-sd.org/ Also, Bonjour is a big offender: http://en.wikipedia.org/wiki/Bonjour_%28software%29 A lot of Apple apps use it like itunes. -Original Message- From: bind-users-bounces+john.manson=mail.house@lists.isc.org [mailto:bind-use

Re: What can cause excessive amount of _dns-sd queries?

2012-08-23 Thread Dwayne Hottinger
is there someway to alleviate this? On 8/23/12, Manson, John wrote: > Good explanation of Service Discovery: > http://www.dns-sd.org/ > > Also, Bonjour is a big offender: > http://en.wikipedia.org/wiki/Bonjour_%28software%29 > A lot of Apple apps use it like itunes. > > -Original Message-

What can cause excessive amount of _dns-sd queries?

2012-08-23 Thread Manson, John
In our case, 90% of the dns-sd queries were for the 192.168 network. These are from 1 client: DNS C db._dns-sd._udp.0.158.168.192.in-addr.arpa. Internet PTR ? DNS C dr._dns-sd._udp.0.158.168.192.in-addr.arpa. Internet PTR ? DNS C lb._dns-sd._udp.0.158.168.192.in-addr.arpa. Internet PTR ? DNS C cf.

How to validate SRV record?

2012-08-23 Thread Nikolay Shaplov
Hi! I am trying to write a validator for name field of SRV record, and I met several issues I can not understand. May be you can help me with that. 0. Bind does not really validate name of SRV record: _te__st_._te--st!?.rrr!e is considered to be correct record. (BIND 9.7.3) So I can not use

Re: How to validate SRV record?

2012-08-23 Thread Kevin Oberman
On Thu, Aug 23, 2012 at 8:52 AM, Nikolay Shaplov wrote: > Hi! > > I am trying to write a validator for name field of SRV record, and I met > several issues I can not understand. May be you can help me with that. > > 0. Bind does not really validate name of SRV record: > > _te__st_._te--st!?.rrr!e

Re: How to validate SRV record?

2012-08-23 Thread Kevin Darcy
On 8/23/2012 6:09 PM, Kevin Oberman wrote: On Thu, Aug 23, 2012 at 8:52 AM, Nikolay Shaplov wrote: Hi! I am trying to write a validator for name field of SRV record, and I met several issues I can not understand. May be you can help me with that. 0. Bind does not really validate name of SRV r

Re: How to validate SRV record?

2012-08-23 Thread Kevin Darcy
On 8/23/2012 6:46 PM, Kevin Darcy wrote: On 8/23/2012 6:09 PM, Kevin Oberman wrote: On Thu, Aug 23, 2012 at 8:52 AM, Nikolay Shaplov wrote: Hi! I am trying to write a validator for name field of SRV record, and I met several issues I can not understand. May be you can help me with that. 0.

Re: How to validate SRV record?

2012-08-23 Thread Doug Barton
On 8/23/2012 3:49 PM, Kevin Darcy wrote: > Sorry, I meant to say that it's pretty clear that it *restricts* what a > Service Label may contain. It's even a "MUST". Sure, but you're omitting the (typically unstated) part of the MUST, "a compliant implementation." So it depends on the OP's purpose.

Static-stub zones and forwarding

2012-08-23 Thread Mark Picone
Hi All, I am in the process of migrating all of our client facing resolver hosts back to BIND (from unbound) and have hit a roadblock. I wanted to confirm if I have missed something in my BIND configuration or I have hit some sort of limitation in BIND. It appears as if BIND is ignoring the sta

Re: Static-stub zones and forwarding

2012-08-23 Thread Mark Andrews
This is partially addressed in the upcoming maintainence release. diff --git a/lib/bind9/check.c b/lib/bind9/check.c index 5d95eda..5891255 100644 --- a/lib/bind9/check.c +++ b/lib/bind9/check.c @@ -1324,8 +1324,10 @@ check_zoneconf(const cfg_obj_t *zconfig, const cfg_obj_t *voptions, {