分散式阻断攻击的侦测

[性状]本品为红棕色黏稠液体。[鉴别]（1）取本品0．1mL，置试管中，加水2mL，加茚三酮试液0．2mL，置水浴中加热片刻，即显红紫色或紫色。

The Detection of DIMs Attack

We present an efficient method for detecting and filtering denial-of-service bandwidth attack.Our system called STTOPS(Sequential Testing with Tabulated Online Packet Statistics for DDos Detection)can monitor a large number of network addresses in a compact,fixed-size structure using several effective heuristics.Proved by experiment,STTOPS can detect bandwidth attack in a standard benchmark dataset with a higher average accuracy and a lower average inaccuracy than TOPS,and it uses less computational resources than TOPS and does not slow down during an attack.