On Tue, 30 Apr 2013, Jose Manuel Delgado G. wrote:
I have isc.org attack." isc.org internet *?". It comes from my own clients
that I have allowed in my ACL. the question is how to stop this attack?
this causes my traffic on the interface is intense and also up my cpu
percentage. that I can do to prevent it??
Assuming "clients" means things you connect to the net...
If the queries are really from your clients, find & fix them. They are
probably attacking others in addition to you, so you'd be doing the rest of
the Internet a favor while solving your own problem.
If the traffic is spoofed as being from your clients, stop accepting traffic
from elsewhere sourced from your client address space.
________________________________________________________________________
Jay Ford, Network Engineering Group, Information Technology Services
University of Iowa, Iowa City, IA 52242
email: jay-f...@uiowa.edu, phone: 319-335-5555, fax: 319-335-2951
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