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Detection of DoS and DDoS attacks targeting a web server
Nguyen, Minh Hien ; Fujdiak, Radek (referee) ; Kuchař, Karel (advisor)
The bachelor thesis deals with the detection of DoS (Denial of service) and DDoS (Distributed Denial of Service) attacks targeting a web server. This work aims to design detection methods, which will be subsequently tested. Analysis of attacks according to the ISO/OSI (International Organization for Standardization/Open Systems Interconnection) reference model will allow an understanding of the features of individual attacks. In the practical part, some tools are used to implement attacks, then there are generators of legitimate network traffic and a secure web server. Substantial data are created from ongoing attacks and communications of ordinary users. These data are an important part of the proposed methods. The purpose of assessing the achieved results is to evaluate the effectiveness of individual detection methods in terms of accuracy and time consumption.
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Network probe module for energy protocols analysis
Nguyen, Minh Hien ; Burda, Karel (referee) ; Blažek, Petr (advisor)
Energy protocols are already increasingly entering our daily lives. With the development of smart grids, meters and appliances, more and more customers are demanding faster and more accurate consumption readings, as well as efficient information about the status of the energy network and control over energy use. The theoretical part of this master's thesis focuses primarily on the description of energy standards and protocols (IEC 60870, IEC 61850, DLMS and DNP3). Before the design of the analyzer, the network probe was first tested for load and stress. Once the criteria were met a DLMS energy protocol analysis module was created. The output is a set of statistics and values and can be used as a basis for machine learning and artificial intelligence. Furthermore, the thesis described the possible attacks on the energy protocol and proposes suitable detection methods based on the Suricata module.
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Detection of DoS and DDoS attacks targeting a web server
Nguyen, Minh Hien ; Fujdiak, Radek (referee) ; Kuchař, Karel (advisor)
The bachelor thesis deals with the detection of DoS (Denial of service) and DDoS (Distributed Denial of Service) attacks targeting a web server. This work aims to design detection methods, which will be subsequently tested. Analysis of attacks according to the ISO/OSI (International Organization for Standardization/Open Systems Interconnection) reference model will allow an understanding of the features of individual attacks. In the practical part, some tools are used to implement attacks, then there are generators of legitimate network traffic and a secure web server. Substantial data are created from ongoing attacks and communications of ordinary users. These data are an important part of the proposed methods. The purpose of assessing the achieved results is to evaluate the effectiveness of individual detection methods in terms of accuracy and time consumption.
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