Bind takes a long time to resolve requests

[Mark Andrews]

In message <CAFpOY6rEW5ebKPC3JBB=ROfn8njdEhhxJqS2RN6CCfqRo0_tFQ at mail.gmail.com>
, Pablo Maurelli writes:
> 
> hello, pick up a dns server with bind9, is resolving claims, but it takes
> time to resolve a lot, sometimes throw timeout error and the second time
> resolved, any ideas?
> I pass below my named.conf, host.conf and nsswitch.conf
> 
> from already thank you very much.
> 
> Regards!
> 
This sounds like a upstream problem where a firewall in block DNS UDP
messages bigger than 512 bytes or dropping fragmentent packets.

Can you resolv "dig edns-v4-ok.isc.org txt" and "dig edns-v4-ok.isc.org txt"?

-- 
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: marka at isc.org