On 09.12.14 21:36, Frank Bulk wrote:
Perhaps it wasn't NXDOMAIN -- I didn't capture the output. But there
definitely was not answer. The institution only has two authoritative
nameserver entries, both pointing to the same IP, so all it was all down.
In any case, why doesn't flushing the name work?
On Wed, Dec 10, 2014 at 3:36 AM, Matus UHLAR - fantomas <uh...@fantomas.sk>
wrote:
I'm afraid we can't tell you without precise information.
However, the institution should get at least one backup DNS server...
On 11.12.14 09:35, Bob Harold wrote:
If a DNS server does not respond, I believe that BIND caches that fact, but
it is tied to the DNS server IP (or name?) and not to the domain, so
flushing the domain name would not affect it.
...and this cache is very short, 5 minutes IIRC.
it's really hard to tell without more info...
--
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