Two separate replies for one query to some domains

2010-05-03 Thread John Z. Bohach
Hello, I'm trying to run a local caching-only nameserver (bind-9.3.3) on Linux in order to bypass my ISP's name-servers, and most things work fine, except some domains behave strangely. For example, forecast.weather.gov has a TTL of 5 seconds. My initial look-up works correctly, and the

Re: Preparing for upcoming DNSSEC changes on 5/5

2010-05-03 Thread Kalman Feher
On 1/05/10 7:10 PM, Server Administrator server53a...@gmail.com wrote: I tried OARC's DNS Reply Size Test on two of my name servers, both on the same network, behind the same firewall router. Both came back and reported DNS reply size limit is at least 3843 (results below). Is 3843

RE: Preparing for upcoming DNSSEC changes on 5/5

2010-05-03 Thread Lightner, Jeff
I fear I've missed something important. My Network admin is saying his understanding is we MUST make changes for this 5/5 change on the root servers. I was under the impression that until we decide to implement DNSSEC ourselves we don't need to do anything on our end to continue resolving.

problem with domain and sub-domain configuration

2010-05-03 Thread fddi
Hello I have one domain test.com with namserver ns.test.com (10.0.0.1) and a subdomain cr.test.com with nameserver ns.cr.test.com (10.1.0.1) my problem is that if I update hostnames inside test.com zone updates are not seen by cr.test.com nameserver they are seen if I restart named on

Re: problem with domain and sub-domain configuration

2010-05-03 Thread Gregory Hicks
Date: Mon, 03 May 2010 17:37:46 +0200 From: fddi f...@gmx.it To: Bind Users Mailing List bind-users@lists.isc.org Subject: problem with domain and sub-domain configuration X-FuHaFi: 0.68005 Hello I have one domain test.com with namserver ns.test.com (10.0.0.1) and a

Re: Preparing for upcoming DNSSEC changes on 5/5

2010-05-03 Thread Alan Clegg
On 5/3/2010 4:36 PM, Lightner, Jeff wrote: It sounds as if he read an article saying we have to implement DNSSEC on our DNS servers or we'll quit working on 5/5? Is that the case? Also what is the drop dead date/time if so? 5/5 Midnight UTC? Some other time? You don't need to do

Re: Side-effects of edns-udp-size 512

2010-05-03 Thread Ray Van Dolson
On Fri, Apr 30, 2010 at 11:55:48PM -0700, Cathy Almond wrote: Hi Ray, I'd recommend not using type 'any' in your tests - the results won't always be what you expect. ANY is a diagnostic query type - and what a recursive nameserver does when it receives it will depend on what it has already

Re: Preparing for upcoming DNSSEC changes on 5/5

2010-05-03 Thread Peter Laws
On 01/-10/37 13:59, Kalman Feher wrote: Second, make sure the tested effective size appears in your named.conf in the options statement edns-udp-size on your resolver. In your case: edns-udp-size 3843; Mine are all saying x.x.x.x sent EDNS buffer size 4096 when I run the dns-oarc.net

RE: Preparing for upcoming DNSSEC changes on 5/5

2010-05-03 Thread Lightner, Jeff
I hadn't done any tests because as noted below I was unaware there was any testing needed. I was responding in thread that seemed relevant. Someone replied off list suggesting I do dig @b.root-severs.net com +dnssec +notcp then dig @b.root-servers.net com +dnssec +tcp. The latter responded

Re: Bind 9.7.0-P1 socket: file descriptor exceeds limit / assertion failure

2010-05-03 Thread JINMEI Tatuya / 神明達哉
At Thu, 29 Apr 2010 14:53:44 -0700, Dale Kiefling dale.kiefl...@cbs.com wrote: We have a Bind 9.7.0-P1 instance that is throwing the following errors: 21-Apr-2010 16:59:00.173 general: error: socket: file descriptor exceeds limit (1024/1024) The fact that the FD limit is 1024 suggests your

Re: Preparing for upcoming DNSSEC changes on 5/5

2010-05-03 Thread Kalman Feher
On 3/05/10 7:34 PM, Lightner, Jeff jlight...@water.com wrote: There is no EDNS entry in my named.conf. Do I need one, given that above worked? You probably should. Your resolver is saying its capable of handling 4096, but apparently your network path may not support that. The changes on the

RE: Preparing for upcoming DNSSEC changes on 5/5

2010-05-03 Thread Lightner, Jeff
To follow up on Peter's question what does it mean if one sees the reply size limit is at least with a value lower than the advertised EDNS buffer size? This link talks about various scenarios but not that one so I'm not sure if this means Peter and I need to be concerned. I saw similar results

Re: Preparing for upcoming DNSSEC changes on 5/5

2010-05-03 Thread Kalman Feher
On 3/05/10 9:54 PM, Lightner, Jeff jlight...@water.com wrote: On doing that however, I now see the advertised value is 3839 but the at least value is 3828 on one and 3827 on the other as shown below. Based on that it appears one should NOT set the edns-udp-size as it doesn't fix the

RE: Preparing for upcoming DNSSEC changes on 5/5

2010-05-03 Thread Lightner, Jeff
Thanks. Is there something in the world know to be exactly 4096 or are you suggesting I somehow craft a record of that size? -Original Message- From: bind-users-bounces+jlightner=water@lists.isc.org [mailto:bind-users-bounces+jlightner=water@lists.isc.org] On Behalf Of Kalman

RE: Preparing for upcoming DNSSEC changes on 5/5

2010-05-03 Thread Lightner, Jeff
I posted a note just before this so not sure if you saw that. In that I noted my set of EDNS seemed to be contra-indicated as default is 4096. Setting it to the lower value worked to set advertised value but in turn the lower value reduced again so it seems one would never be able to advertise

DNSSEC - Root zone - FUD

2010-05-03 Thread David Miller
All, There has been quite a bit of FUD bouncing around the net regarding the May 5th signing of the root zone and the sky falling (or at least massive failures across the internet). I have been asked multiple times about how I was going to prevent the internet from collapsing for my users.

Re: DNSSEC - Root zone - FUD

2010-05-03 Thread Ray Van Dolson
On Mon, May 03, 2010 at 01:16:53PM -0700, David Miller wrote: All, There has been quite a bit of FUD bouncing around the net regarding the May 5th signing of the root zone and the sky falling (or at least massive failures across the internet). I have been asked multiple times about how

Re: Preparing for upcoming DNSSEC changes on 5/5

2010-05-03 Thread Peter Laws
On 05/03/10 14:56, Kalman Feher wrote: You probably should. Your resolver is saying its capable of handling 4096, but apparently your network path may not support that. The changes on the The network path to dns-oarc.net doesn't, but that doesn't really mean anything. To some resolvers,

Re: problem with domain and sub-domain configuration

2010-05-03 Thread f...@gmx.it
Yes I do update the serial, in fact I wrote to the list because I cannot find an explanation... thanks Rick Gregory Hicks wrote: Date: Mon, 03 May 2010 17:37:46 +0200 From: fddi f...@gmx.it To: Bind Users Mailing List bind-users@lists.isc.org Subject: problem with domain and sub-domain

RE: Preparing for upcoming DNSSEC changes on 5/5

2010-05-03 Thread Lightner, Jeff
I was using the Java tester on a Windows system and saw the same 4096/3843 as I'd seen with DIG and just now noticed this comment in its results: Note: There will always be a difference between the announced and measured buffer size because of the algorithm used. However this difference should

Re: Two separate replies for one query to some domains

2010-05-03 Thread Mark Andrews
In message 201005030503.49752.j...@aexorsyst.com, John Z. Bohach writes: Hello, I'm trying to run a local caching-only nameserver (bind-9.3.3) on Linux in order to bypass my ISP's name-servers, and most things work fine, except some domains behave strangely. For example,

Re: problem with domain and sub-domain configuration

2010-05-03 Thread Doug Barton
On 05/03/10 08:37, fddi wrote: Hello I have one domain test.com with namserver ns.test.com (10.0.0.1) and a subdomain cr.test.com with nameserver ns.cr.test.com (10.1.0.1) my problem is that if I update hostnames inside test.com zone updates are not seen by cr.test.com

Re: Side-effects of edns-udp-size 512

2010-05-03 Thread Doug Barton
On 05/03/10 09:34, Ray Van Dolson wrote: I believe having edns-udp-size set at 512 gives us maximum compatibility with anything out there behind a broken firewall, etc, though we should look at removing the limit at some point in the future when possible. Doing this will simply perpetuate

Re: Side-effects of edns-udp-size 512

2010-05-03 Thread Ray Van Dolson
On Mon, May 03, 2010 at 04:20:30PM -0700, Doug Barton wrote: On 05/03/10 09:34, Ray Van Dolson wrote: I believe having edns-udp-size set at 512 gives us maximum compatibility with anything out there behind a broken firewall, etc, though we should look at removing the limit at some point

Re: Side-effects of edns-udp-size 512

2010-05-03 Thread Mark Andrews
In message 20100503163413.ga2...@esri.com, Ray Van Dolson writes: On Fri, Apr 30, 2010 at 11:55:48PM -0700, Cathy Almond wrote: Hi Ray, I'd recommend not using type 'any' in your tests - the results won't always be what you expect. ANY is a diagnostic query type - and what a

Re: Side-effects of edns-udp-size 512

2010-05-03 Thread Doug Barton
On 05/03/10 16:46, Ray Van Dolson wrote: On Mon, May 03, 2010 at 04:20:30PM -0700, Doug Barton wrote: On 05/03/10 09:34, Ray Van Dolson wrote: I believe having edns-udp-size set at 512 gives us maximum compatibility with anything out there behind a broken firewall, etc, though we should look

Re: Side-effects of edns-udp-size 512

2010-05-03 Thread Ray Van Dolson
On Mon, May 03, 2010 at 04:54:38PM -0700, Doug Barton wrote: On 05/03/10 16:46, Ray Van Dolson wrote: On Mon, May 03, 2010 at 04:20:30PM -0700, Doug Barton wrote: On 05/03/10 09:34, Ray Van Dolson wrote: I believe having edns-udp-size set at 512 gives us maximum compatibility with

Re: Preparing for upcoming DNSSEC changes on 5/5

2010-05-03 Thread Mark Andrews
In message 4bdf4b79.4050...@ou.edu, Peter Laws writes: On 05/03/10 16:19, Mark Andrews wrote: The test is a rough guide to the maximum packet size supported by the path. So what would be the point of using edns-udp-size to something even smaller? None I can see ... What am I

Re: problem with domain and sub-domain configuration

2010-05-03 Thread Barry Margolin
In article mailman.1343.1272903565.21153.bind-us...@lists.isc.org, Gregory Hicks ghi...@hicks-net.net wrote: Date: Mon, 03 May 2010 17:37:46 +0200 From: fddi f...@gmx.it To: Bind Users Mailing List bind-users@lists.isc.org Subject: problem with domain and sub-domain configuration

our isp not supports EDNS?

2010-05-03 Thread Jeff Pang
Hello, Following the discussions in the list, I made a test on one of our servers, which is in an ISP's datacenter. The result is below: $ dig +short rs.dns-oarc.net txt rst.x476.rs.dns-oarc.net. rst.x485.x476.rs.dns-oarc.net. rst.x490.x485.x476.rs.dns-oarc.net. 218.204.255.72 DNS reply size

RE: Preparing for upcoming DNSSEC changes on 5/5

2010-05-03 Thread Laws, Peter C.
Yes, I get all that. But earlier in the thread, I noted that: Mine are all saying x.x.x.x sent EDNS buffer size 4096 when I run the dns-oarc.net test, which I assume is the default. I, too, get the 3843 at least value. Why would I set it to 3843? Wouldn't I want it to be set to 4096 even if

Re: Preparing for upcoming DNSSEC changes on 5/5

2010-05-03 Thread Mark Andrews
In message 789398ea51916246a8016370ebc0231f0f3...@it-rome.sooner.net.ou.edu, Laws, Peter C. writes: Yes, I get all that. But earlier in the thread, I noted that: Mine are all saying x.x.x.x sent EDNS buffer size 4096 when I run the dns-oarc.net test, which I assume is the default. I,

Re: our isp not supports EDNS?

2010-05-03 Thread Mark Andrews
In message y2sf7e964441005031927m7774769ev280156817d8b4...@mail.gmail.com, Je ff Pang writes: Hello, Following the discussions in the list, I made a test on one of our servers, which is in an ISP's datacenter. The result is below: $ dig +short rs.dns-oarc.net txt