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Preventing Denial of Service Attacks (O'ReillyNet)
O'ReillyNet looks into
DoS prevention on FreeBSD systems. "The first step to protecting
yourself from an attack is to understand the nature of different types of
attacks. As we said earlier, resource-consumption attacks target your
system in places that can cause bottlenecks. The most popular targets are
network bandwidth, system memory, network stack memory, disk I/O, operating
system limitations such as a limit on the number of open file handles, and
the CPU. These bottlenecks can be on your systems or in your network
hardware."
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