On Mon, Aug 15, 2016 at 11:23 PM, blrmaani wrote:
> From tcpdump, it appears that customers are receiving delayed response and
> are too sensitive for timeouts.
>
> The queries they are sending are authoritative i.e the zone is on our
> nameserver.
>
> How do I trouble-shoot this issue? This is
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Message: 6
Date: Mon, 15 Aug 2016 20:23:17 -0700 (PDT)
From: blrmaani
To: comp-protocols-dns-b...@isc.org
Subject: Re: Disabling rate-limit?
Message-ID:
Content-Type: text/plain; charset=UTF-8
>From tcpdump, it appears that customers are receiving delayed response and are
>too
>From tcpdump, it appears that customers are receiving delayed response and are
>too sensitive for timeouts.
The queries they are sending are authoritative i.e the zone is on our
nameserver.
How do I trouble-shoot this issue? This is really intermittent and hard to
reproduce..
thanks
Blr
O
Hi Blr,
First things first: if your customers are sending queries, this is
probably about their own recursive queries timing out, rather than
incoming authoritative queries timing out.
Something else you should check: are your customers receiving a
delayed (say a few seconds) SERVFAIL response, o
On Mon, 15 Aug 2016, blrmaani wrote:
I inherited a DNS server which is running BIND 9.8.x. There was a DNS
incident where our customers complained that they saw query timeouts
intermittently (Our customers run cassandra/hadoop applications and send
same queries repeatedly). They also run nscd o
I inherited a DNS server which is running BIND 9.8.x. There was a DNS incident
where our customers complained that they saw query timeouts intermittently (Our
customers run cassandra/hadoop applications and send same queries repeatedly).
They also run nscd on their hosts but I was told all have
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