Detection of Attacks Causing Network Service Denial

Anotace: This article deals with ICT security and particularly the Denial of Service (DoS) executed on the application layer. The main objective of the article is to describe the original algorithm designed for timely detection of DoS application attacks and, subsequently, on the results of experimental verification of the designed process. This algorithm is focused on the detection of HTTP GET Flood attack, which will cause a crash of the attacked server. Appropriate detection of attack from the analysis of incoming traffic is able to prevent a crash of server from happening. To detect such an attack, an original algorithm designed by our team was used.