Controlled DDoS Attack on IPv4/IPv6 Network Using Distributed Computing Infrastructure

The paper focuses on design, background and experimental results of real environment of DDoS attacks. The experimental testbed is based on employment of a tool for IT automation to perform DDoS attacks under monitoring. DDoS attacks are still serious threat in both IPv4 and IPv6 networks and creation of simple tool to test the network for DDoS attack and to allow evaluation of vulnerabilities and DDoS countermeasures of the networks is necessary. In proposed testbed, Ansible orchestration tool is employed to perform and coordinate DDoS attacks. Ansible is a powerful tool and simplifies the implementation of the test environment. Moreover, no special hardware is required for the attacks execution, the testbed uses existing infrastructure in an organization. The case study of implementation of this environment shows straightforwardness to create a testbed comparable with a botnet with ten thousand bots. Furthermore, the experimental results demonstrate the potential of the proposed environment and present the impact of the attacks on particular target servers in IPv4 and IPv6 networks

Issues of direct taxes

The thesis is focused on issues of direct taxes mainly on the most discussed problems in the direct taxation area. The introductory section is devoted to basic financial law categories, such as the very definition of tax, the notion of direct taxes, tax functions, tax systems and tax schemes. The history of taxes from the very beginning to the present legislation is outlined in the thesis. The main central theme of the diploma work is mentioned in the chapters that deal with the issues of direct taxes. These chapters are devoted to the characteristics of direct taxes in a broader sense. According to a significant extent of the chosen theme, the thesis deals with income taxes within "de ferenda" legislation. The intention of the thesis was not the complex processing of all relevant aspects of income taxes, but especially expresses the most discussed problems such as direct tax issues, tax progression and relation to social aspects. In this thesis, tax issues are identified at EU level and compared to the level of taxation in other EU countries. In conclusion the tax system of our nearest EU neighbour Germany is also briefly mentioned

Controlled DDoS Attack on IPv4/IPv6 Network Using Distributed Computing Infrastructure

The paper focuses on design, background and experimental results of real environment of DDoS attacks. The experimental testbed is based on employment of a tool for IT automation to perform DDoS attacks under monitoring. DDoS attacks are still serious threat in both IPv4 and IPv6 networks and creation of simple tool to test the network for DDoS attack and to allow evaluation of vulnerabilities and DDoS countermeasures of the networks is necessary. In proposed testbed, Ansible orchestration tool is employed to perform and coordinate DDoS attacks. Ansible is a powerful tool and simplifies the implementation of the test environment. Moreover, no special hardware is required for the attacks execution, the testbed uses existing infrastructure in an organization. The case study of implementation of this environment shows straightforwardness to create a testbed comparable with a botnet with ten thousand bots. Furthermore, the experimental results demonstrate the potential of the proposed environment and present the impact of the attacks on particular target servers in IPv4 and IPv6 networks