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Correlating IPFIX Records of Proxy Server Traffic
Krůl, Michal ; Jeřábek, Kamil (referee) ; Ryšavý, Ondřej (advisor)
This thesis elabortes the problem of correlation of the network flow records. It tries to find solution, which would allow to automatically correlate flows from both sides of the proxy server. For this purpose, a dataset containing captured network traffic is created, which then serves as a base for analysis. Based on the results of the analysis a solution is presented, which is consequently tested and discussed.
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Fast Generator of Network Flows
Budiský, Jakub ; Dvořák, Milan (referee) ; Matoušek, Jiří (advisor)
Tato diplomová práce se věnuje analýze existujících řešení pro generování síťového provozu určeného k testování síťových komponent. Zaměřuje se na generátory na úrovni IP síťových toků a pokrývá návrh a implementaci generátoru, zvaného FLOR, schopného vytvářet syntetický síťový provoz rychlostí až několik desítek gigabitů za sekundu. K plánování toků využívá náhodného procesu. Vytvořená aplikace je otestována a porovnána s existujícími nástroji. V závěru jsou navrženy další vylepšení a optimalizace.
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Operational research in waste recycling
Camara, Assa ; Popela, Pavel (referee) ; Pavlas, Martin (advisor)
The bachelor thesis is aimed at finding and describing a mathematical model that reconstructs the actual current financial costs of collecting and collecting waste at the level of municipalities with expanded scope, which are not easily available and are needed for further planning in waste management. In order to create the model, the knowledge of optimization, statistics and graph theory are summarized in the text. The model is applied to real data in the GAMS environment. The results of the application are commented on and analysed. Based on this analysis, there are also possibilities to develop this model.
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Optimization models supporting strategic decisions in waste management
Mazlová, Lenka ; Hrabec, Dušan (referee) ; Nevrlý, Vlastimír (advisor)
This diploma thesis focuses on the creation of a complex optimization model for network flow problem in waste management. The main goal is designing a model of mixed integer programming problem that includes every aspect from production to waste treatment, its implementation in the Julia programming language and the description of the obtained results. The final model can plan transport routes, determine the method of waste transportation and allocate processing and treatment facilities, including sizing their capacities. This model is then used for test calculations on real data from Czech Republic.
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Correlating IPFIX Records of Proxy Server Traffic
Krůl, Michal ; Jeřábek, Kamil (referee) ; Ryšavý, Ondřej (advisor)
This thesis elabortes the problem of correlation of the network flow records. It tries to find solution, which would allow to automatically correlate flows from both sides of the proxy server. For this purpose, a dataset containing captured network traffic is created, which then serves as a base for analysis. Based on the results of the analysis a solution is presented, which is consequently tested and discussed.
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Correlating IPFIX Records of Proxy Server Traffic
Krůl, Michal ; Jeřábek, Kamil (referee) ; Ryšavý, Ondřej (advisor)
This thesis engages the problem of correlation the network flow records. It tries to find solution, which would allow to automatically pinpoint correlating flows on both sides of the proxy server. For this purpose, a dataset containing captured network traffic is created, which then serves as a base for analysis. Based on the results of the analysis a solution is presented, which is consequently tested and discussed.
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Analysis of DDoS Backscatter Traffic in Network Flow Data
Marušiak, Martin ; Tisovčík, Peter (referee) ; Žádník, Martin (advisor)
This work focuses on detection of denial of service (DoS) attacks which utilize random spoofing of source IP address in attack packets. These types of attacks lead to generation of side effect in a form of backscatter that can be used to identify victims of such attacks. Backscatter analysis has so far been limited to unused address space ranges referred to as network telescopes. This work therefore proposes a new method of DoS attack detection via backscatter outside of network telescope environment where legitimate user traffic is also present. Furthermore proposed approach uses only abstracted traffic in a form of network flows. Presented method was implemented as part of NEMEA system and tested on real flow data capture provided by CESNET.
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Optimization and algorithms for traffic engineering problems
Fajmon, Michal ; Popela, Pavel (referee) ; Hrabec, Dušan (advisor)
This master's thesis deals with optimization of traffic networks. There are discussed modeling methods for traffic and simplifications used in these models. Introductory part is focused on mathematical theory used to buid presented model. Main focus of this thesis was creation and optimization of the model which describes real world traffic network with traffic lights. Model was tested on both artificial and real data gathered in city Zlín. It was necessary to create generator which can produce suitable input data for model.
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Applications of scheduling algorithms in railway transportation
Fajmon, Michal ; Kokrda, Lukáš (referee) ; Pavlas, Martin (advisor)
Bachelor’s thesis is focused on creation of mathematical model, which uses multiple methodsforwastecollectionatthelevelofmunicipalities.Modelisfocusedon railfreight transport. Main reasons are of lower production of emissions and reduction of burden on road traffic. In order to create model, the knowledge of graph theory, integer and linear programmingisused.CreatedmodelisimplementedinGAMSenvironmentonsmallscale data. At the end there are stated possibilities for further development of the model.
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