DoS attack is one of the most popular risks for online service systems because it is simple but severely dangerous. Currently, most of DoS studies address vulnerabilities or possible countermeasures, but few focus on attack detection. This paper prese...
DoS attack is one of the most popular risks for online service systems because it is simple but severely dangerous. Currently, most of DoS studies address vulnerabilities or possible countermeasures, but few focus on attack detection. This paper presents a simple but effective mechanism namely Shewhart control charts to detect abrupt changes in order to detect DoS attacks. This mechanism is flexible so can be implemented in every link or node in networks.