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Using Blazor technology with the DotVVM framework
Švikruha, Patrik ; Ilgner, Petr (referee) ; Lattenberg, Ivo (advisor)
DotVVM, WebAssembly, WASM, Blazor, ASP.NET Core, .NET Core, .NET, Mono, JavaScript, JavaScript engine, LLVM, AOT compiler, JIT compiler, WSL
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Optimization of single-page application startup
Bartoň, Jan ; Švikruha, Patrik (referee) ; Ilgner, Petr (advisor)
This thesis concerns with optimalisation of launching the single page JavaScript application Kentico Kontent. It especially focuses on dividing JavaScript libraries and packages into independent files according to certain criteria. These adjustments to the application are divided into several scenarios. For every scenario, six types of measurements have been carried out, due to which the impact of the change on the speed of loading the application and the amount of transferred data from server to client was found. The result of this thesis is a proposal of adjustments which lead to a faster launch of the application, due to a smaller amount of data being transferred from the server, therefore the application can use the browser cache more effectively.
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Automated Processing of Network Service Logs in Linux
Hodermarsky, Jan ; Jeřábek, Jan (referee) ; Ilgner, Petr (advisor)
This thesis is focused on design and implementation of software for a prophylactic real-time logfile analysis and a consequent threat detection apparent therein. The software is to concentre particularly on network services, respectively, on the log files thereof, on Linux platform. The log files are observed for potential security breach attempts in regard to respective service as defined in the configuration file. The present thesis purports to reach the largest extent of versatility possible for a straightforward configuration of a new service which is to be monitored and protected by the software. An important asset of the work is a web-based interface accessible through HTTP protocol which allows the software to be administered remotely with ease.
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Fuzzer Based on Genetic Programming
Závada, Tomáš ; Gerlich, Tomáš (referee) ; Ilgner, Petr (advisor)
The thesis is focused on testing, discusses its various approaches and more specifically focuses on the automated testing technique called fuzzing. It discusses its process, advantages, disadvantages and then also some of its possible improvements. Furthermore, the work is focused specifically on improving the process of fuzzing techniques using genetic algorithms. Genetic algorithms help create more appropriate test inputs, saving time during testing process while achieving appropriate results. A server using the DLMS/COSEM standard was chosen as the testing target. The thesis also introduces the DLMS protocol, which provides communication between clients and servers, and other essentials falling under the COSEM specification. Then the assembly of a test network, containing a server and a client, which use the mentioned standard for communication, is described. The thesis also elaborates a solution proposal for how the connection of the testing tool to the network could look like. Finally, the implementation of a fuzzer using the process of genetic algorithms to generate test data is also included.
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Virtualization of virtualization software
Holovová, Simona ; Ilgner, Petr (referee) ; Lieskovan, Tomáš (advisor)
The bachelor thesis deals with virtualization. The main goal is to compare selected virtualization platforms and describe their functioning. The theoretical part describes the theoretical basis for virtualization, its fundamentals as well as various types and security threats. The practical part contains the description and the way of performing the tests as well as the used tool. Subsequently, the results obtained are interpreted and compared. The thesis is further dealing with nested virtualization and measuring its effectiveness.
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Visualization communication between OLT and ONU units in NG-PON2 networks.
Ilgner, Petr ; Jurčík, Michal (referee) ; Horváth, Tomáš (advisor)
This bachelor thesis is concerned with passive optical networks, which provide solutions of access networks and have sufficient capacity for data-intensive services. The introductory section compares technologies of access networks and evaluates their qualities and usability. The following part focuses concretely on passive optical networks and their hardware. The next section introduces the passive optical network - NG-PON2 standard. The characteristics and principles of establishing a connection between subscriber unit and provider network interface. Further, there is description of the data structures in the network, service messages system and network security options. Special attention is paid to individual operating systems in the network. The practical part represents a design and implementation of visualization software, which displays the data communication between the units of the network.
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Security of Red Hat Enterprise Linux based operating systems
Kňažeková, Nikola ; Ilgner, Petr (referee) ; Komosný, Dan (advisor)
Táto diplomová práca sa zameriava zvyšovanie bezpečnosti v operačných systémoch založených na Red Hat Enterprise Linux, na základe analyzovaných zraniteľnosti za posledných 5 rokov. V teoretickej časti sú popísané slabiny a zraniteľnosti, základné bezpečnostné mechanizmy v Linuxe, so zameraním na technológiu SELinux. Technológia SELinux je súčasťou operačných systémov Red Hat Enterprise Linux, Fedora a CentOS. Na základe analyzovaných zraniteľností bola v praktickej časti navrhnutá konfigurácia technológie SELinux. V návrhu sú popísané prvky, ktoré sa budú konfigurovať a tými sú SELinuxové booleany, SELinuxové moduly a SELinuxoví užívatelia, so zameraním na ochranu pamäte, eskalovanie privilégií, spúšťaniu kódu, úniku dat a obmedzenie procesov a užívateľov. Na základe návrhov bola vytvorená konfigurácia v konfiguračnom nástroji Ansible, ktorej cieľom je umožniť užívateľovi jednoducho a rýchlo nakonfigurovať hosťa. Okrem nej boli vytvorene ďalšie dve konfigurácie, ktoré umožnia vrátiť systém do predchádzajúceho stavu alebo uzamknúť SELinuxovú konfiguráciu. Následne sa overoval dopad konfigurácií na použiteľnosť systému a nájdené chyby boli opravené alebo nahlásené. Posledná časť overuje funkčnosť konfigurácie pred zneužitím zraniteľností.
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Application for volunteer fire department
Vopálka, Matěj ; Ilgner, Petr (referee) ; Gerlich, Tomáš (advisor)
The thesis deals with the development of a web application for volunteer firefighters. The application allows a firefighter to respond to the incident notification and display the status of individual members on the monitor in the fire station. The aplication provides user authentication and allows the viewing of information about the incident, including participating firefighters. The application receives incident information via the web application interface from Raspberry Pi, which reads and formats SMS messages.
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Tool for parsing and analysing of web pages
Odstrčil, Štěpán ; Ilgner, Petr (referee) ; Galáž, Zoltán (advisor)
This bachelor’s thesis is dealing with parsing of text in HTML pages and its analysis. Practices from Natural Language Processing were used. There were written libraries (or packages) in programming language Python, with use of modern practices, techniques and libraries. The usages and examples of these libraries and classes were made. All these libraries were tested using Unit tests. Application contains GUI (Graphical User Interface) for wasier usefulness and demonstration of functionality.
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Android stock market application
Balaževič, Lukáš ; Ilgner, Petr (referee) ; Zvončák, Vojtěch (advisor)
The aim of the work is to design and implement an android application which will display parameters of cryptocurrencies, technical indicators and will predict the price based on the modern technology of machine learning. In addition to the displaying parameters, the user will be able to set up notifications. Application displays data from the Firebase database. The data are uploaded to an application from two services which run on Ubuntu server and are written in programming language Kotlin and Python. Services are in charge of obtaining and data processing. One of the services takes care of price prediction, the price is predicted using a LSTM neural network where each cryptocurrency has an own training model. The result of the work is a system that takes care of the whole lifecycle of the data from the acquisition, transformation and the presentation to the user. Based on acquired information from the application, the user is able to make statistically correct decisions in the cryptocurrency market without the need to constant market monitoring.
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