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

2011-07-13 Thread Jonathan Kamens
nse about what users want and expect from their software. In the meantime, it's clear that I don't belong on this mailing list, so I'm out of here. Jonathan Kamens ___ 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: Clients get DNS timeouts because ipv6 means more queries for each lookup

2011-07-12 Thread Jonathan Kamens
issue for you. I'm not here to debate religion, I'm here to get help making my DNS work, and to help other people, to whatever extent I can, make /their/ DNS work. If you continue to send religious screeds on this topic while making no

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

2011-07-12 Thread Jonathan Kamens
Well, all the prodding from people here prompted me to investigate further exactly what's going on. The problem isn't what I thought it was. It appears to be a bug in glibc, and I've filed a bug report and found a workaround. In a nutshell, the getaddrinfo function in glibc sends both A and AA

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

2011-07-11 Thread Jonathan Kamens
On 7/11/2011 4:06 PM, Bill Owens wrote: 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." It's not just wikipedia.org that's broken, obviously. I see this error in my logs for 19 domains s

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

2011-07-11 Thread Jonathan Kamens
On 7/11/2011 3:26 PM, Eivind Olsen wrote: I think the main issue here is - why is your nameserver thinking it has IPv6 connectivity? No, this isn't the issue. I see the FORMERR errors in syslog and the timeouts resolving host names even when I start named with -4. Named is querying for

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

2011-07-11 Thread Jonathan Kamens
On 7/11/2011 3:10 PM, Tony Finch wrote: Jonathan Kamens wrote: I said above that the problem is exacerbated by the fact that many DNS servers don't yet support IPV6 queries. This is because the queries don't get NXDOMAIN responses, which would be cached, but rather FORMERR

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

2011-07-11 Thread Jonathan Kamens
ugh to be confident that I'd get it right. I'm interested to hear if other people are encountering this problem and if the developers who work on BIND have any thoughts about how to migitate it, short of getting everyone on the internet to upgrade to nameservers that support IPV6.