[Yeti DNS Discuss] Strange BIND resolver behaviour (may be not Yeti-specific)

Shane Kerr shane at biigroup.cn
Wed Jul 15 07:49:45 UTC 2015


On 2015-07-14 22:59:00+0200 (Tuesday)
Stephane Bortzmeyer <bortzmeyer at nic.fr> wrote:

> I take the opportunity of Yeti work to observe the behavior of my
> resolvers, something that I don't typically do for the "normal"
> root. So, this behaviour may be not Yeti-specific.
> Tcpdumping the traffic of a BIND 9.9.5 resolver, I see many requests
> which, IMHO, should have been answered from cache:


> Same thing here, the delegation for .com should have been in the
> cache.
> Any opinion?

Hm, confusing. I checked the results for the DS query of twitter.com,
and the answers are identical from both servers.

I don't suppose you have access to the logs for BIND 9? (While it may
say something like "tachyon inverters grommit 0b4f778:4px", at least it
can be a clue...)



More information about the discuss mailing list