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STEMLab based data acquisition system
Pavlík, Radim ; Kováč, Michal (referee) ; Kubíček, Michal (advisor)
Thesis deals with design of acquisition system, working on developing platform STEMLab (Red Pitaya). Goal is possibility of monitoring analog signals with adjustable sampling frequency and length of acquisition. Software was created for both controlling part (Python application) and for platform itself (embedded C, Python) using the appropriate FPGA-HW design (HDL). Thesis describe how to work with platform ecosystem, control and behaviour of aplications created during the proces of getting acquainted with the platform and options how aplications could be created.
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Monitoring of servers with OS Linux
Šuba, Filip ; Frolka, Jakub (referee) ; Komosný, Dan (advisor)
This bachelor’s thesis deals with monitoring of a servers in experimental network PlanetLab. The beginning of the thesis is about PlanetLab network, terminology used within it and also projects realized in it. For generating information about node, has been created a module in Python, which has been integrated into application Plbmng. Application has been published under the MIT license on \url{www.github.com} and on Python Package Index www.pypi.org. For the application has been created manual and for the module has been created documentation.
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Sestem for removal of children speech defects
Pokorný, Vojtěch ; Sekora, Jiří (referee) ; Harabiš, Vratislav (advisor)
Speech is one of the basic forms of human communication and disruption of communication ability can negatively affect the life of man. deals with the elaboration of logopedic theory, which serves as a basis for the follow-up design and application creation in the field of speech therapy. The thesis is divided into five chapters. The first chapter deals with the history of speech therapy with an emphasis on domestic logopaedia, the logopedic intervention process in its entirety, and the differentiation of individual types of impaired communication skills. The second chapter focuses on a specific disruption of communication skills - dyslalia.The application for the treatment of dyslalia is determined by the application, which is elaborated in the third chapter. The fourth chapter contains a detailed description of the designed and created application, including an explanation of the processes running in the application when the application is being used. The last chapter of this diploma thesis contains a summary of the results of the practical testing of the application together with suggestions for improvement of the application.
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Design of security infrastructure for electronic archive
Doležel, Radek ; Lattenberg, Ivo (referee) ; Zeman, Václav (advisor)
This master's thesis deals with design of security infrastructure for electronic archive. In theoretical part is disscus about technical resources which are based on security services and protocols and methods which are used for protection. On basics of theoretical part is designed model of security infrastructure and it is built in laboratory. Model of security infrastructure is based on Open Source Software and as safety storages for private user authentication data are used cryptographic USB tokens. This master's thesis includes design and construction of real infrastructure of secured electronic archive. In each part of master's thesis is put main emphases on security and clear explanation from the beginning of desing of model of security infrastructure for electronic archive to finish of construction.
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Verification of PlanetLab servers location
Pružinský, Ján ; Verner, Lukáš (referee) ; Komosný, Dan (advisor)
The main objective of this thesis is to analyze the nodes of PlanetLab network. The analysis is focusing mainly on verifying the availability of nodes and on verifying the physical position of nodes. Individual nodes are tested for availability of ICMP protocol and SSH protocol. Availability of ICMP protocol is verified by using ping program. The main part of the thesis is devoted to verifying the addresses of nodes. Identified addresses are compared with entered addresses and the resulting conformity is evaluated at the level of the state, county, city and streets. Precision of specified address estimation is calculated based on given GPS coordinates. This thesis also deals with the dividing of nodes based on calculated usability index and accuracy index. The theoretical part contains a description of an experimental PlanetLab network and Google Geocoding API.
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Virtual Access to Nodes in PlanetLab
Fic, Jiří ; Matoušek, Petr (referee) ; Ryšavý, Ondřej (advisor)
PlanetLab as a distributed systems testbed offers a unique opportunity for developing and testing new applications useful for future Internet. This work brings up a scheme and a solution of the problem with accessing PlanetLab by a larger group of students e.g. for the purpose of solving their courseworks. A designed system empowers its administrator to create and control virtual user accounts which provide possibility for all its users to connect to selected nodes in the PlanetLab.
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Virtualization of operating systems
Král, Jan ; Malina, Lukáš (referee) ; Komosný, Dan (advisor)
The diploma thesis ’Virtualization of Operating Systems’ deals with a general description of virtualization technology and briefly discusses its use cases and advantages. The thesis also mentions examples of different types of virtualization technologies and tools, including more thorough description of the two technologies used for measurement: Docker and KVM. The second part of this thesis descibes the preparation, installation and configuration of all the tools and services that are necessary for measurement of the influence of the aforementioned virtualization technologies on network services running on the virtual machines, including analysis and discussion of the resulting data. Moreover, a custom application for fully automated measurement of the parameters of network services was created, and is also described in this thesis. The conclusion of this thesis summarizes and discusses the achieved results and acknowledges the influence of virtualization on network services, where the Docker application containers, which are with their low overhead comparable to a "bare" system without any virtualization, managed to achieve much better performance results than the traditional virtual machines on KVM.
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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.
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Safe Cryptography Algorithms
Zbránek, Lukáš ; Schäfer, Jiří (referee) ; Chmelař, Petr (advisor)
In this thesis there is description of cryptographic algorithms. Their properties are being compared, weak and strong points and right usage of particular algorithms. The main topics are safeness of algorithms, their bugs and improvements and difficulty of breaching. As a complement to ciphers there are also hash functions taken in consideration. There are also showed the most common methods of cryptanalysis. As a practical application of described algorithms I analyze systems for secure data transfer SSH and SSL/TLS and demonstrate an attack on SSL connection. In conclusion there is recommendation of safe algorithms for further usage and safe parameters of SSH and SSL/TLS connections.
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Mobile Application for DNS Administration
Galajda, Denis ; Ovšonka, Daniel (referee) ; Kováčik, Michal (advisor)
This bachelor's thesis deals with possibilities and specifics of developing a custom mobile applicaion for DNS administration on Android. The goal is to create an easy-to-use application which will allow the user to manage zones and resource records of BIND9 nameserver. This issue is solved by manipulation of zone files over SSH connection, controlled through the modern user interface. The resulting programm allows the users to comfortably manage a DNS server from their smartphone practically anywhere.
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