On Apr 16, 2007, at 11:05 AM, Jeffrey Goldberg wrote:
[ ... ]

Hi--

It's not very helpful to CC: every NTP abuse report to the  
timekeepers mailing list, especially for the initial contacts.  I end  
up sending fifty or more similar messages a year, and I would only  
CC: the timekeepers mailing list if repeated contacts fail to solve  
the issue and thus I want to warn others about an entire netblock or  
ISP who refuses to deal with their abusive customer/client.

I generally don't worry too much about IPs with less than 1 million  
queries-- that's about equivalent to downloading a single big  
file...but someone issuing 20 queries a second managed to accumulate  
8 million or so queries in about a week before I filtered them.

YMMV, of course, and good luck with your efforts.

-- 
-Chuck

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