On Sun, August 5, 2007 10:43, Udo van den Heuvel said:
> Klaus Alexander Seistrup wrote:
>> Udo van den Heuvel:
>>
>>> Please have a look at the mrtg graphs at
>>> http://pindarots.xs4all.nl/mrtg/ntp.html.
>>
>> A safe guess is that the majority of the peaks are due to the infamous
>> Türk Telekom, who gives a damn about decent behaviour.
>
> How can I be sure that this is the fact at my box?
>
>> Said ISP's unacceptable behaviour during a very long time
>
> Myabe contact them some more about it?
> All possible emails, phone, fax, etc.

Two naive thoughts...

Since this is making people leave the pool, and the abuse seems to come
from a specific source. Is it impossible to get your local ISP to block
the NTP port for trafic from TT in their routers? Thus making TT requests
not even reach you. Since it is an ISP not playing nice, maybe this
problem should be taken care of at the ISP level.

On the other side... we (the pool project) are controlling the DNS-round
robin? Can the DNS system identify TT requests? If so, either drop those
requests or direct them to servers with the bandwidth/CPU-power to cope
with the abuse. Sure, this would add complexity, but maybe its worth it
compared to loosing lots of time servers.


--

   Björn

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