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Comparison of Linux and Windows networking performance
Novotný, Radek ; Burget, Radim (referee) ; Komosný, Dan (advisor)
My Bachelor’s thesis aims to provide a comparison of the performance of servers, i.e. measuring the load of their processors, physical memory, and the whole operating system over network communication using UDP protocol. For this purpose, I developed my own programs. Theoretical part of this work concentrates on the general overview on computer networks and their categorisation according to the ISO OSI and TCP/IP network models. Main differences between network interfaces for both models are provided; the TCP and UDP structures, layers, communication and protocols are explained. The choice was made to measure values for a Linux server with Linux SUSE 10.3 distribution, and a Windows server with Windows server 2003 R2. A program was created so that clients could send data via the UDP protocol on servers. The program is also capable of measuring packet loss which is caused by increased load on the servers from communication itself. It is essential to determine which operating system can eliminate this issue in a better way as this a crucial parameter when selecting a data server. Measurements are comprised in charts comparing load and data loss for a given number of users.
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Driver design for custom analog user module in Linux OS
Brejcha, Martin ; Sysel, Petr (referee) ; Molnár, Karol (advisor)
This master's thesis describes how to develop loable kernel module for operating system Linux. Module can be use like driver for concrete hardware device. In this case for telecommunication hardware. The second part of this thesis describes how to implement support for this hardware in Asterisk PBX. Support in Asterisk is realized by channel module. In that channel module are implemented functions for process incoming and dialed calls.
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Forms of Enterprise Support in the Civil Engineering
Netušil, Ondřej ; Martin, Polák (referee) ; Hrabincová, Dagmar (advisor)
The intention of my finale bachelor work is to explain and solve different forms of grants for small and medium businesses within building industry. Those grants work as a guarantee for the business to get loans from the bank. Those businesses are obviously carefully pick by the institution. Those establishments have given criteria to avoid the misuse of those grants. The practical part of my work includes the breakdown of one local company and its chances to get the grant.
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Security risks of smartphones
Káňová, Eva ; Luc, Ladislav (advisor) ; Veber, Jaromír (referee)
The topic of this bachelor's thesis is security and protection of data by using smartphones. The theoretical first part focuses on history of smartphones and introduces the best-known operating systems. The second part describes attacks on mobile phones, their future and the most famous attacks. Another section contains methods, which protect smartphones against attacks. Next part focuses on the comparison of antivirus program, according to specific criteria. The last part contains description of my survey. The goal of this survey is to find an answer to the question, if people care about the protection of data and realize the consequences of no good protection.
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iOS platform security
Nidl, Michal ; Veber, Jaromír (advisor) ; Luc, Ladislav (referee)
This bachelor's thesis is focused on security of operating system iOS from Apple. The thesis is divided into six chapters. The first chapter describes iOS and Apple company. The second chapter deals with iOS security architecture in terms of security model and security mechanisms. The third chapter deals with the security of iOS applications and options of their testing. The fourth chapter describes software attacks against iOS in the form of malware and exploitation. The fifth chapter describes the system interferences and methods for their detection. The sixth chapter deals with comparison of iOS security and Android and Windows Phone platform security. In this chapter is introduced the security of competitive platforms in terms of security model, system security, application security and interferences. This comparison includes the table with evaluation of security. Objective of this thesis is to introduce ways of security in one of the most widely used mobile platform. Moreover the aim is to compare iOS security with security of two competitive platforms. The result is an analysis of iOS security and it's comparison with Android and Windows Phone security.
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Operating Systems Market Analysis
Kafka, Jan ; Benáčanová, Helena (advisor) ; Koubský, Petr (referee)
The reason of this work are operating systems, their significance, history, analysis of the current situation and attempt to predict the future. The first part introduces the basic concepts, the definition of operating system and brief history. The second part deals with the current situation on the market for operating systems, the main drivers of this sector and the business models used. The last part deals with the prediction of the situation on the market for operating systems, their future evolution, the probable evolution of their business model and estimate the near future from the business point of view. It were also made study of available new scientific publications about OS. Contribution of this thesis evaluate role and future operating systems and prediction business perspective in the industry branch.
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The relationship between malware attacks and the popularity of operating systems
Jirmusová, Radka ; Gála, Libor (advisor) ; Čermák, Igor (referee)
The Bachelor thesis deals with the issue of malware and operating systems. The scope of the work is to prove or disprove the relationship or dependence between the number of malware attacks and different operating systems using statistical calculations. The goal of this thesis is achieved on the basis of methodology of analysis. The thesis presents the result of the analysis used to summarize the conclusions. The work is divided into four main parts. The first part introduces the issue of malware to the reader. The second section intoduces operating systems used in the analysis. The third part defines the relationship between the malware and information technology. The final section deals with statistical calculations and achieved results. Own contribution of the thesis is to evaluate the dependencies in the monitored areas.
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The analysis of chosen directions in mobile phone applications’ sphere
Březina, Petr ; Luc, Ladislav (advisor) ; Veber, Jaromír (referee)
This Bachelor's thesis focuses on particular mobile platforms and chosen contemporary directions in mobile applications' sphere. The first part includes theoretical base. It means introduction, characteristic and development of widespread platforms in order to explanation of gradually increasing functions and opportunities offered by the modern applications to a reader. There are two mobile applications' directions chosen on the grounds of varied functions in this part of the thesis. These two directions are analysed according to fixed standards and evaluated afterwards in the next part of the thesis. The chosen directions refer to a smartbanking and mobile phone navigations. The main aim of the Bachelor's thesis is to analyse every chosen direction according to fixed standards and compare mobile applications contained in these chosen directions. The last thing is on the basis of the previous analysis and comparison to come to an conclusion which applications dominate and which are leg behind by contrast.
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Enterprise mobile device management
Paňková, Jana ; Šedivá, Zuzana (advisor) ; Horník, Adam (referee)
The main goal of the bachelor thesis is to describe and analyze the topic of mobile device management -- mobile applications, functionalities and the possibilities of implementation in the heterogeneous environment of companies, with all of the attached security issues covered. In the first, theoretical part the thesis describes particular vendors, possibilities of the management of mobile devices, both in company and employee ownership. We also describe the actual model of implementation the mobile device management in an actual Czech company. Second part of the thesis consists from the analyzed and commented the global market study, conducted in 2014 as well as the Czech Republic mobile device management market poll from the year 2013. Both of the studies put the original telephonic poll, made for the purpose of this thesis, in wider context. The results of the poll are analyzed and described in a comprehensive way.
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Analysis of mobile platforms and possibilities of marketing of applications
Bezucha, Ondřej ; Žamberský, Martin (advisor) ; Bruckner, Tomáš (referee)
The subject matter of the thesis is an analysis of selected mobile platforms operat-ing at present on the market. Presentation of individual platforms as to their history up to now, architecture and the present version of the operating system. At the end of the theo-retic part, I will compare two most frequently used platforms according to the chosen crite-ria. The objective of the thesis is to elaborate the pattern of the present market for mobile platforms. The practical part will be focused on the possibilities of marketing of applications, distribution channels of the platforms. Publishing and promotion of the specific application and monitoring of its success via an analytic programme.
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