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Wireless Network Aspects
Pluhař, Ondřej ; Ponížil, Michal (referee) ; Koch, Miloš (advisor)
The bachelor’s thesis is about wireless communication, concretely wireless fidelity networks. It deals about IEEE 802.11 standard and also about its modulations. History, development, kinds and properties of wireless network and security is also mentioned. Current situation of one particular company is viewed in further part of the thesis. Some innovations in internet access and security of wireless communication in company network is suggested.
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Portal of the universal access control protocol
Čepelák, Tomáš ; Ležák, Petr (referee) ; Burda, Karel (advisor)
The paper focuses on the issue of access control. It presents an universal bilateral protocol of access control of ACP. The paper describes the messages and its sequences that AC portals uses for communication. It describes the functions and features of the modules from which the portal is composed. The paper suggests the concept of a modular AC portal solutions including the design of basic modules. It also outlines possible test scenarios. Under this proposal is generated functional AC portal on the .NET Framework platform using the C\# programming language. The portal provides access to local assets or to the assets on other computers in the local network. Created application is tested according to the scenarios proposed in both the network version and the local version of the AC portal. Test results are objectively evaluated and commented.
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Solution of the authentification and authorization for wireless local networks
Čížek, Michal ; Pust, Radim (referee) ; Burda, Karel (advisor)
This thesis is about available priciples and methods of authentication and authorization in wireless local area networks. First part is about available methods of authentication with short description each of them and usage analysis for small and middle-sized wireless networks. There is a project of authentication and authorization for school wireless network of three access points in the second part of the thesis, including description of Mikrotik RouterOS configuration and FreeRadius configuration. In the end of the thesis there is a project tests and usage analysis.
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The control of Toma orange juice authenticity on the basis of selected chemical properties
Cvrková, Jana ; Vítová, Eva (referee) ; Hrstka, Miroslav (advisor)
This study verifies Toma orange juice authenticity on the basis of selected chemical properties. In the theoretical part are definitions of the basic concepts concerning the orange juice. This part is also focused on characterization of technology procedures of orange juices, historical development of legislation in the European Union and Czech Republic, the most frequent ways of adulteration of fruit juices and methods, which determine their authenticity. In experimental part were made determinate analyses of orange juice Toma and experimental results were compared with standard values. On this basis it was deduced a conclusion about authenticity of orange juice Toma from commercial network.
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The control of Tesco orange juice authenticity on the basis of selected chemical properties
Belková, Renáta ; Šalplachta, Jan (referee) ; Hrstka, Miroslav (advisor)
This study deals with verifying the Tesco orange juice authenticity, on the basis of selected chemical parameters. In the theoretical part there is orange juice defined according to actual standards, described its production and the legislation in EU and in the Czech Republic. There are next mentioned the basic practices of adulteration of orange juice and possibilities of its detection and some analytical methods for verifying the orange juice authenticity. In the experimental part of the study there was the authenticity of the sample of orange juice Tesco from the trade network tested with some standard analytical methods. Regarding to the results of the analysis, which were within the limits of the standard values, the conclusion can be written that analysed sample of the orange juice was authentic.
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Setup and securing of the network used by hotel guests
Prajer, Richard ; Palovský, Radomír (advisor) ; Pinkas, Otakar (referee)
The aim of this Bachelor Thesis is to secure access to the Internet in a small European hotel chain. Given the circumstances, specified in the text, following question emerged: How to delegate the responsibility of the guest's conduct on the Internet away from the hotels. Considering other possibilities I chose the individual users authentication as the best solution available. Captive portal was selected as the best authentication method regarding the hotel environment. Further the text is devoted to the tailoring of the system to the specific needs of this particular use: Both from a technical view as well as with regard to user-friendliness. The structure of the work follows the logic of the implementation process of the new system: from the theoretical introduction, which summarizes the requirements on system and it's possible executions, to the practical part. There I link the variety of tools, programs and configurations to the new system for providing the Internet connection. In conclusion, the weaknesses of the system are discussed.
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