Re: Clients get DNS timeouts because ipv6 means more queries for each lookup

2011-07-21 Thread Bill Owens 
On Mon, Jul 11, 2011 at 04:06:42PM -0400, Bill Owens wrote:
 On Mon, Jul 11, 2011 at 02:11:57PM -0400, Jonathan Kamens wrote:
  The number of DNS queries required for each address lookup requested by 
  a client has gone up considerably because of IPV6. The problem is being 
  exacerbated by the fact that many DNS servers on the net don't yet 
  support IPV6 queries. The result is that address lookups are frequently 
  taking so long that the client gives up before getting the result.
 
 I've seen the same thing, and poked around enough to see that the Wikipedia 
 name servers are returning the wrong authority info for these and other 
 queries (it isn't just  - try TXT, SRV, etc.) Some digging through the 
 archives finds this:
 
 https://lists.isc.org/pipermail/bind-users/2011-March/083109.html
  in which the first sentence says it all: The nameservers for wikipedia.org 
 are broken.
 
 And this followup:
 https://lists.isc.org/pipermail/bind-users/2011-March/083113.html
  It's PowerDNS 2.9.22 that is breaking this, and it will be fixed by 
  PowerDNS 3.0 once that's released, and we get around to deploying it.
 
 Looks like PowerDNS was in RC2 as of April 19, not released yet. . .

Updating that - according to Bert Hubert (via Twitter): 
Friday the 22nd is... PowerDNS Authoritiative Server 3.0 release day!

Bill.
___
Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe 
from this list

bind-users mailing list
bind-users@lists.isc.org
https://lists.isc.org/mailman/listinfo/bind-users

DNS Caching Issue

2011-07-21 Thread Sathyan Arjunan (sarjunan) [CONTRACTOR] 
Recent days, I am facing frequent caching issues with my DNS servers
which are responsible for recursive lookup to external queries. As a
temporary solution, we used to refresh the named daemon to clear the
cache. To isolate this issue we upgraded the BIND to BIND 9.7.3 but
even after the upgrade issue repeats. Any thoughts?

 

Regards,

--Sathyan

___
Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe 
from this list

bind-users mailing list
bind-users@lists.isc.org
https://lists.isc.org/mailman/listinfo/bind-users

Re: DNS Caching Issue

2011-07-21 Thread Chuck Swiger 
On Jul 21, 2011, at 3:02 PM, Sathyan Arjunan (sarjunan) [CONTRACTOR] wrote:
 Recent days, I am facing frequent caching issues with my DNS servers which 
 are responsible for recursive lookup to external queries. As a temporary 
 solution, we used to refresh the named daemon to clear the cache. To isolate 
 this issue we upgraded the BIND to “BIND 9.7.3” but even after the upgrade 
 issue repeats. Any thoughts?

BIND is intended to perform caching according to the TTLs of the resources.  
You'll have to provide more details about what you think is wrong

Regards,
-- 
-Chuck

___
Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe 
from this list

bind-users mailing list
bind-users@lists.isc.org
https://lists.isc.org/mailman/listinfo/bind-users