Detection defense method for distributed reject service and network appliance
A distributed denial and service detection technology, applied in data exchange networks, error prevention, digital transmission systems, etc. Effect
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Embodiment 2
[0047] Embodiment 2, counting the number N of arriving data packets per unit time, and comparing the number N of arriving data packets per unit time with the preset threshold Then collect the source IP address of data packet, the number of hops of data packet, the size of data packet, calculate the joint entropy of these N data packets according to the size of source IP address, the number of hops of data packet, data packet, this moment joint Entropy is: H ( X , Y , Z ) = - Σ i = 1 n P ( x i , y i , z i ) log P ( ...
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