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Testing the response of operating systems to different IPv6 flows
Ruiner, Michal ; Polák, Ladislav (referee) ; Jeřábek, Jan (advisor)
The aim of the thesis is to create an array of virtual machines and research their response to the IPv6 protocol. Another significant part is to utilize the provided tool for generating and sniffing IPv6 traffic and verify its correct functionality. For such purpose, the GNS3 open-source software is selected. A~reader is familiarized with the concepts of virtualization, GNS3 functionality and various methods of software testing together with the implemented practical models. The IPv6 protocol is introduced in detail as well as the packet format, address types and several IPv6 protocols useful for the thesis. The practical part is discussed in the Numerical results chapter. The topology is established and connectivity verified using IPv4. Configuration of static IPv6 addresses is performed on the devices as well as configuration of router to distribute particular prefixes. 5 testing scenarios are proposed that increase the input load to the tool in sense of higher number of addresses for the 3 different modes - passive, active and aggressive. 3 scripts were developed. Performance testing script measures utilization of computational resources. The other 2 scripts perform packet capturing and further analysis to compare the results of proposed scripts with provided tool. The comparison is done utilizing passive and aggressive modes. Active mode is used to observe the response of various operating systems to different IPv6 flows. Specifically, multiple Windows 10 builds, Linux distributions, Windows XP, 7, 11, macOS and Android.
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Linux distribution for smart building gateway
Nagy, Tomáš ; Komosný, Dan (referee) ; Jablončík, Lukáš (advisor)
The goal of the thesis was to create a Linux distribution for a smart home gateway. The thesis is divided into theoretical and practical parts. The theoretical part dealt with the analysis of the Linux operating system. Subsequently, single board computers are described and compared. In the next part, the gateway issues, communication protocol selection and application containerization are discussed. As a result of addressing the issue, a procedure for adding tools for home automation, the construction of scripts that automate this issue and instructions for their proper execution were proposed.
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Features and testing of mobile devices with Android OS
Ružička, Silvestr ; Malina, Lukáš (referee) ; Balík, Miroslav (advisor)
The work deals with creating applications for the Android OS, gathering information on mobile device and testing of computing power. In this theisis we talk about the history, development and architecture of the Android OS. Described here the application development fo Android OS. Process The output of this work is an application for finding information on the mobile device and to test the computational performance.
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Reasons for low Linux adoption on desktop PCs
Langer, Filip ; Haupt, Jaromír (referee) ; Sedláček, Pavel (advisor)
Cílem této bakalářské práce je seznámit jejího čtenáře s operačními systémy Windows a Linux, jejich prostředím, programy, kterými disponují, jejími silnými a slabými stránkami a určit, proč je operační systém Linux málo adoptovaný mezi uživateli stolních počítačů. Tato semestrální práce by měla poskytnout jejímu čtenáři dostatek informací potřebných k určení, který z těchto operačních systémů bude více splňovat jejich potřeby. Rozhodnutí napsat semestrální práci na toto téma jsem udělal na základně vlastní zkušenosti, kdy jsem se jako uživatel potýkal s nedostatkem informačních materiálů na toto téma.
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Technology of product machining on CNC machines
Brázda, Jiří ; Kalivoda, Milan (referee) ; Osička, Karel (advisor)
This diploma thesis deals with a technology of production milling of sample component “ending of generator shaft” by CNC milling in environment of small company. At first common aspects of CNC machines, technology of CNC milling and technology of construction are introduced. Possible problems with milling of sample component are analyzed and their possible solutions are presented. Next technology of CNC milling with operating program for CNC lathe (HAAS SL20) and CNC milling machine (HAAS VF3), production of component in small company with necessary documentation in technology procedure are projected. Using of operating systems HAAS, Fanuc and HEIDEHAIN are compared. Using of cutting tools and cutting condition for component milling is projected. Finally timing of operations and financial calculations necessary for small production of sample component is proposed.
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Contiki NTP Client
Luštický, Josef ; Čejka, Rudolf (referee) ; Kašpárek, Tomáš (advisor)
This BSc Thesis was performed during a study stay at the RheinMain University of Applied Sciences in Wiesbaden, Germany. The purpose of this thesis is to describe the operating system Contiki for embedded systems, NTP time synchronisation protocol and to design and implement an NTP client for the Contiki operating system.
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Extend USBGuard to Support External Authorization Policy Sources
Sroka, Radovan ; Smrčka, Aleš (referee) ; Peringer, Petr (advisor)
Táto práca sa zaoberá dopadom používania externých USB zariadení na bezpečnosť v rámci operačného systému Linux. Taktiež popisuje USBGuard projekt, jeho alternatívy ako aj výhody či nevýhody centralizovanej správy. Hlavým cieľom tejto práce je pridať možnosť spravovania USBGuardu centrálne pomocou LDAPu. Toto rozšírenie zahŕňa dizajn verejného rozhrania pre rôzne zdroje politík a implementáciu LDAP funkcionality. Táto práca definuje novú USBGuard LDAP schému a jej atribúty na strane serveru.
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Issue of Migrating from Single-Core to Multi-Core Implementation of Operating System
Skopal, Jakub ; Krčma, Martin (referee) ; Strnadel, Josef (advisor)
This thesis deals with the modifications of the hardware design and operating systems of the ZedBoard multi-core platform so that both ARM Cortex A9 processor cores included in SoC Zynq7000 can be used. It analyses the general issue of the multi-core environment and the core functions of the kernel and the operating system. It describes selected means of implementation ZedBoard and FreeRTOS. In the implementation section, specific steps are demonstrated to convert a single-core operating system to a multi-core system but also steps required to run two different operating systems on two processor cores. In the last section all achieved results are summarized.
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