|
|
Memory Reduction of Stateful Network Traffic Processing
Hlaváček, Martin ; Puš, Viktor (referee) ; Kořenek, Jan (advisor)
This master thesis deals with the problems of memory reduction in the stateful network traffic processing. Its goal is to explore new possibilities of memory reduction during network processing. As an introduction this thesis provides motivation and reasons for need to search new method for the memory reduction. In the following part there are theoretical analyses of NetFlow technology and two basic methods which can in principle reduce memory demands of stateful processing. Later on, there is described the design and implementation of solution which contains the application of these two methods to NetFlow architecture. The final part of this work summarizes the main properties of this solution during interaction with real data.
|
|
|
Secure Transport of NetFlow and IPFIX Records
Štěpánek, Adam ; Grégr, Matěj (referee) ; Podermański, Tomáš (advisor)
This bachelor thesis deals with an IP flow based data network monitoring system. It presents the architecture of the NetFlow based monitoring, explains the basic terms, the NetFlow protocol and its alternatives. Further, weak spots of the monitoring systems are determined and a conceptual solution is proposed. This solution is implemented and described in detail. Finally, testing methods and results are discussed and the possibilities of further development and optimization are proposed.
|
|
|
Extraction of Available Information from SSH Protocol Headers
Ďurčanský, Norbert ; Bartoš, Václav (referee) ; Kořenek, Jan (advisor)
This paper analyzes issue regarding to extraction of available information from SSH protocol. To achieve this aim, knowledge about SSH protocol were used to implement plugin for FlowMon exporter. During the testing plugin was tested on real network and validated in terms of stability, efficiency and accuracy. The result plugin allows us to extract information from SSH protocol and futher analysis without decryption of traffic.
|
|
|
Traffic Analysis of Network Protocols Kerberos, NTLM, and SAML 2.0
Krůl, Michal ; Orsák, Michal (referee) ; Tisovčík, Peter (advisor)
This thesis engages the problem consisting of analysis and detection of the attacks carried out on the authentication protocols in the environment of network structures, like those used in big corporations. In~this thesis, the problem is examined in the light of the netflow analysis. Main content of the thesis is a simulation of the attacks targeting network architectures, where the authentication is served by mentioned protocols, and effort to detect these attack by the netflow monitoring. The outcome of this thesis is a draft, how to automatically detect the attacks carried out in the network structures, and plugin for the exporter of the Flowmon sond, the product of Flowmon Networks company, which will be extracting the information needed for the performance of the detection.
|
|
|
Traffic Analysis of Network Protocols Kerberos, NTLM, and SAML 2.0
Krůl, Michal ; Orsák, Michal (referee) ; Tisovčík, Peter (advisor)
This thesis engages the problem consisting of analysis and detection of the attacks carried out on the authentication protocols in the environment of network structures, like those used in big corporations. In~this thesis, the problem is examined in the light of the netflow analysis. Main content of the thesis is a simulation of the attacks targeting network architectures, where the authentication is served by mentioned protocols, and effort to detect these attack by the netflow monitoring. The outcome of this thesis is a draft, how to automatically detect the attacks carried out in the network structures, and plugin for the exporter of the Flowmon sond, the product of Flowmon Networks company, which will be extracting the information needed for the performance of the detection.
|
|
|
Extraction of Available Information from SSH Protocol Headers
Ďurčanský, Norbert ; Bartoš, Václav (referee) ; Kořenek, Jan (advisor)
This paper analyzes issue regarding to extraction of available information from SSH protocol. To achieve this aim, knowledge about SSH protocol were used to implement plugin for FlowMon exporter. During the testing plugin was tested on real network and validated in terms of stability, efficiency and accuracy. The result plugin allows us to extract information from SSH protocol and futher analysis without decryption of traffic.
|
|
|
Secure Transport of NetFlow and IPFIX Records
Štěpánek, Adam ; Grégr, Matěj (referee) ; Podermański, Tomáš (advisor)
This bachelor thesis deals with an IP flow based data network monitoring system. It presents the architecture of the NetFlow based monitoring, explains the basic terms, the NetFlow protocol and its alternatives. Further, weak spots of the monitoring systems are determined and a conceptual solution is proposed. This solution is implemented and described in detail. Finally, testing methods and results are discussed and the possibilities of further development and optimization are proposed.
|
|
|
Memory Reduction of Stateful Network Traffic Processing
Hlaváček, Martin ; Puš, Viktor (referee) ; Kořenek, Jan (advisor)
This master thesis deals with the problems of memory reduction in the stateful network traffic processing. Its goal is to explore new possibilities of memory reduction during network processing. As an introduction this thesis provides motivation and reasons for need to search new method for the memory reduction. In the following part there are theoretical analyses of NetFlow technology and two basic methods which can in principle reduce memory demands of stateful processing. Later on, there is described the design and implementation of solution which contains the application of these two methods to NetFlow architecture. The final part of this work summarizes the main properties of this solution during interaction with real data.
|
|
|
Current trends of services provided by the Czech Trade agency on strategic markets
Budilová, Kristýna ; Plchová, Božena (advisor) ; Nigrinová, Lenka (referee)
The topic of my bachelor thesis are the activities of the CzechTrade agency since its foundation till present day. The aim of my work is to evaluate the activities whit this agency offers and provides to czech exporters, specifically right on external markets. Are these activities really beneficial for exporters? To compare and evaluate successfully the activities already mentioned, I chose to work with data from particular markets, which are claimed to be strategic for czech export. These are markets of Germany, United states, Russia and other countries of BRIC. In my thesis I look at these markets from macroeconomic point of view in last five yers period of time. Also i focus on analysis of czech external trade at those markets. Most of the time I analyse the volume and commodity structure of czech foreing trade since 2008. In final chapter of the thesis I present particular services which are offered by the CzechTrade agency to czech businesses on external markets and I state specific examples of these services as well. To achieve my goals I use the method of compilation. I was working with specialized literature and publications, as well as with internet sources and I also spoke with worker of the agency.
|
|
|
Documentary Letter of Credit like a Securing Instrument
Štěpánková, Lenka ; Černohlávková, Eva (advisor) ; Nejedlý, Michal (referee)
My thesis deals with documentary letter of credit and with its use in the international trade. The first part of my work is focused on the definition of documentary letter of credit and on the relations between parties acting in the documentary credit operation. The second chapter describes types of letters of credit and, finally, the third chapter, the core of this thesis, focuses on the transactions carried out using a letter of credit and on the practical procedure of the transaction. There are also described the advantages and disadvantages of the documentary letter of credit and its use considering the recent financial crisis and current trends in the international trade.
|
guest ::
