One of the most useful initial steps in troubleshooting is to establish
your ability to reproduce the error.
So, I'd look at getting to the command-line of the originating resolver, if
possible, and using a command-line tool like "dig" to generate queries
towards the intended target and see if you
Hi,
Am 01.10.18 um 21:10 schrieb Karol Babioch:
> Do you have any suggestion / recommendation what I can do to narrow the
> problem down? I already tried to increase the tracing and enabled query
> logging, but I couldn't get to the bottom of things. What else can I do
> here?
as an additional da
Hi Kevin,
thanks for your reply.
Am 01.10.18 um 20:46 schrieb Kevin Darcy:
> Removing "forward only" just masks the problem by telling the resolver
> algorithm to fail over to iterative resolution when it encounters the
> SERVFAIL.
You are probably right, but at least it chooses the correct n
You need to get to the root cause of what's causing the SERVFAIL.
Removing "forward only" just masks the problem by telling the resolver
algorithm to fail over to iterative resolution when it encounters the
SERVFAIL. So, sure, the query resolves, but probably not from the correct
server, and proba
Hi Alex,
On Mon, 1 Oct 2018 12:51:46 -0400
Alex wrote:
> I believe I said as many as 500 qps, but I believe that's wrong. It's
> more like a sustained 200 q/s.
One other thing you might double check is whether or not any consumer
equipment (cable modem, router) has a firewall setting that could
Hi,
On Mon, Oct 1, 2018 at 9:58 AM Blake Hudson wrote:
>
> Alex wrote on 9/30/2018 7:27 PM:
> > Hi,
> >
> > On Sun, Sep 30, 2018 at 1:19 PM @lbutlr wrote:
> >> On 30 Sep 2018, at 09:59, Alex wrote:
> >>> It also tends to happen in bulk - there may be 25 SERVFAILs within the
> >>> same second, t
Hi,
> > It also tends to happen in bulk - there may be 25 SERVFAILs within
> > the same second, then nothing for another few minutes.
>
> Hmmm. If it isn't the modem and it isn't the BLs then it more or less
> has to be the service, no?
Yes, most likely, but I was looking for more definitive pro
On 9/30/18, Alex wrote:
> Hi,
>
> On Sun, Sep 30, 2018 at 1:19 PM @lbutlr wrote:
>>
>> On 30 Sep 2018, at 09:59, Alex wrote:
>> > It also tends to happen in bulk - there may be 25 SERVFAILs within the
>> > same second, then nothing for another few minutes.
>>
>> That really makes it seem like ei
Alex wrote on 9/30/2018 7:27 PM:
Hi,
On Sun, Sep 30, 2018 at 1:19 PM @lbutlr wrote:
On 30 Sep 2018, at 09:59, Alex wrote:
It also tends to happen in bulk - there may be 25 SERVFAILs within the
same second, then nothing for another few minutes.
That really makes it seem like either you modem
Hello again,
On Mon, 1 Oct 2018, Alex wrote:
> Are your requests being dropped by the service(s)?
>
> (Or: are you inadvertently abusing the said service(s)?)
I don't believe so - often times a follow-up host query succeeds
without issue. It's also failing for invaluement and spamhaus, both
of
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