Re: loads of Query denied... is it an attack or a misconfiguration ?

2009-02-11 Thread Stephane Bortzmeyer
On Wed, Feb 11, 2009 at 01:21:35AM +0100, Thomas Manson wrote a message of 88 lines which said: > I believed I was on bind mailing list, a mailing list is where you > usually get some help... isn't it ? You're right, it's a shame. Ask immediately for a refund, both for your registration to th

Re: loads of Query denied... is it an attack or a misconfiguration ?

2009-02-11 Thread Stephane Bortzmeyer
On Wed, Feb 11, 2009 at 01:35:31AM +0100, Thomas Manson wrote a message of 80 lines which said: > I'll temporray block the ip on my firewall Very bad idea, since it is forged. You do exactly what the attacker wanted you to do. The proper thing to do is: https://www.dns-oarc.net/oarc/article

Re: loads of Query denied... is it an attack or a misconfiguration ?

2009-02-11 Thread Thomas Manson
Well... > > I'll temporray block the ip on my firewall > > Very bad idea, since it is forged. You do exactly what the attacker > wanted you to do. > The proper thing to do is: > https://www.dns-oarc.net/oarc/articles/upward-referrals-considered-harmful > this is kind of response I expect : an an

Re: loads of Query denied... is it an attack or a misconfiguration ?

2009-02-11 Thread David Ford
An intelligently designed firewall rule that drops the incoming requests isn't doing exactly what the attacker wants. It's the opposite. The main effect of forged lookups is a response flood. And so it is also intended to flood the victim with overwhelming amounts of DNS responses. It, like any

ns_type question

2009-02-11 Thread Jack Tavares
I have downloaded libbind6.0b1 My question is; the arpa/nameser.h file included does not include type definitions for DNSKEY (or other dnssec rr types) in the ns_type enum. am I looking in the wrong place? Thanks -- Jack Tavares ___ bind-users maili

time.windows.com and download.windowsupdate.com

2009-02-11 Thread patatetom
Hi, I've just started with Bind and DNS, so... 1 I'm on a LAN where external ntp and Window$ update sites are denied. 2 we have, on this LAN a wsus and a ntp server 3 a fresh Window$ XP pro try download.windowsupdate.com for update and time.windows.com for synctime... Can I play with these two z

rrset-order and resolvers

2009-02-11 Thread Torsten Segner
Hi, I have a question regarding the rrset-order option. I have compiled a nameserver with the --enable-fixed-rrset option and configured it with the following rrset-order in global options. rrset-order { class IN type NS name "host.example.com" order fixed; order cyclic; }; Querying the a

SRV Question

2009-02-11 Thread Johnny
_sip._udp.as.host.com as1.host.com 0 1 5060 _sip._udp.as.host.com as2.host.com 0 0 5060 Since "as1" has a higher weight, it will always be picked first by the SRV aware client? I want the devices to ALWAYS go to "as1" and only go to "as2" if "as1" is not available. Do the above l

RE: loads of Query denied... is it an attack or a misconfiguration ?

2009-02-11 Thread Matthew Huff
I've been aware of this problem since it first came up on this and nanog's list, but I'm having some configuration issues trying to make the upward referrel be refused. I'm running bind-9.6.0P1, but I'm still seeing the NS queries being answered in the log: 11-Feb-2009 09:34:25.489 queries: client

RE: loads of Query denied... is it an attack or a misconfiguration ?

2009-02-11 Thread David Forrest
On Wed, 11 Feb 2009, Matthew Huff wrote: I've been aware of this problem since it first came up on this and nanog's list, but I'm having some configuration issues trying to make the upward referrel be refused. I'm running bind-9.6.0P1, but I'm still seeing the NS queries being answered in the lo

Re: time.windows.com and download.windowsupdate.com

2009-02-11 Thread Ben Croswell
You certainly load the zone you don't own, but be aware the downside will be every downstream domain or host under the two domains you load will be blackholed. In your examples: 1) Everything under time.windows.com will not be resolvable other than time.windows.com. i.e. someotherhost.time.windows

Re: SRV Question

2009-02-11 Thread Chris Thompson
On Feb 11 2009, Johnny wrote: _sip._udp.as.host.com as1.host.com 0 1 5060 _sip._udp.as.host.com as2.host.com 0 0 5060 That's the wrong syntax. I'll assume you mean _sip._udp.as.host.com. SRV 0 1 5060 as1.host.com. _sip._udp.as.host.com. SRV 0 0 5060 as2.host.com. Since "as1"

RE: loads of Query denied... is it an attack or a misconfiguration ?

2009-02-11 Thread Matthew Huff
Thanks to David Forest, I realize now that the query IS being refused, however nothing in the bind log shows the refusal. Is there anyway to see that in the log? Matthew Huff   | One Manhattanville Rd OTA Management LLC | Purchase, NY 10577 http://www.ox.com | Phone: 914-460-4039 aim: ma

Re: rrset-order and resolvers

2009-02-11 Thread Chris Buxton
On Feb 11, 2009, at 5:01 AM, Torsten Segner wrote: When asking a resolver I get answers in random order as long as I don't insert the above rrset-order option in the resolver config as well. Have I missed something or is this an intended behaviour of resolving nameservers? This is normal

Multiple SOA

2009-02-11 Thread Prabhat Rana
Hello, Is it possible to have more than one hosts assigned as SOA in a given zone file? I have BIND 9.5 and two UNIX hosts as authoritative servers (host1.com and host2.com) for the domain x.host.com Currently I have host1 as master and host2 configured as slave for x.host.com. In case if host1

Bind Patch for Solaris 10

2009-02-11 Thread Worrell, James J Mr CIV US DISA GS4T1
Greeting! I am trying to load bind patch 119783-10 on a Solaris 10 system running DNS 9.35-p2 and ran into several problems. I suspect that the root cause is due to the security posture that we have in place that prevents a compiler from being loaded on the systems. Has anyone loaded this patch

Re: Bind Patch for Solaris 10

2009-02-11 Thread Ray Van Dolson
On Wed, Feb 11, 2009 at 12:30:19PM -0800, Worrell, James J Mr CIV US DISA GS4T1 wrote: > > Greeting! > > I am trying to load bind patch 119783-10 on a Solaris 10 system running > DNS 9.35-p2 and ran into several problems. I suspect that the root > cause is due to the security posture that we ha

How to configure forwarder

2009-02-11 Thread John D. Vo
We recently moved all our domains to an online name server place, they will now host ALL our domains. I am still running my name servers in cache only mode. If I wanted to set it so that when my local users send a query to the servers here and I want it to instead of looking up stuff on its own

Re: Multiple SOA

2009-02-11 Thread Barry Margolin
In article , Prabhat Rana wrote: > Hello, > Is it possible to have more than one hosts assigned as SOA in a given zone > file? > I have BIND 9.5 and two UNIX hosts as authoritative servers (host1.com and > host2.com) for the domain x.host.com > Currently I have host1 as master and host2 confi

Re: How to configure forwarder

2009-02-11 Thread Serge Fonville
Hi, in your named.conf: zone "example.com" { type forward; forward only; forwarders {IPOFTHEDNSTOFORWARDTO;}; }; At least, that is what I use... Perhaps you need to define some additinal acls Hope this helps Regards, Serge Fonville On Wed, Feb 11, 2009 at 10:09 PM, John D. Vo wrote: > We rec