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NNTP Server as a Windows Network Service
Loupanec, Josef ; Ráb, Jaroslav (referee) ; Očenášek, Pavel (advisor)
This work includes specification and analysis of requirements, design and implementation of the internet news server. The server controls newsgroups and associated news. It provides availability of the articles by NNTP protocol and HTTP protocol (by web interface). The server supports a user authentication and an optional proxy mode, when all NNTP requests are resent to another remote NNTP server. A mechanism that provides news-downloading from remote NNTP servers and performs distribution function is included too. The application is designed to run on MS Windows NT (and higher version) as a NT service. The server is configurable by a graphic user interface. The work also includes theoretical information needed for successful accomplishment of the above-mentioned requirements.
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Educational Game of Motivation on the Android Platform
Kučera, Martin ; Očenášek, Pavel (referee) ; Kreslíková, Jitka (advisor)
The aim of the dissertation is to create a prototype of an educational game which should help students with the choice of future their studies. To this end, the game introduces the topic of logic systems in a non-threating interactive way with clear illustrative examples. The theoretical part of the work deals with the background knowledge necessary in order to design the game. It explains logic systems, gates, flip-flop circuits, and explores various aspects of game genres with primary focus on puzzle games and their history. In addition, the dissertation presents some of the issues related to cross-platform development of games for both mobile and computer platforms, and provides brief descriptions of several popular cross-platform libraries. Lastly, the work introduces and compares several chosen applications created as a supplementary material for teaching logic system.
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Linux OS Monitoring
Korček, Juraj ; Očenášek, Pavel (referee) ; Trchalík, Roman (advisor)
The aim of this bachelor's thesis is design and implementation of monitoring tool for GNU/Linux operating systems. This program monitors logs created by system, system load and computer resources. It notifies system administrator in case of high system load, abnormal behavior or when an error occurs. The resulting product is especially aimed for system administrators of GNU/Linux, whose work will be simplified due to this software utility, which sends notification of only important system changes. It is implemented in scripting language Python and divided into smaller independent scripts for easy implementation of new scripts in the future. This programming language was chosen to ensure operation among all GNU/Linux distributions.
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Hardware Modelling in UGE
Varga, Ladislav ; Očenášek, Pavel (referee) ; Smrčka, Aleš (advisor)
The goal of this thesis is to create a plugin for application Universal graphic editor, which will allow users to design a hardware architecture. Design of hardware architecture usualy starts with drawing of block diagrams of system which is being developed. Next step is to transcribe this drawn design into some hardware description language (HDL). Since structure of hardware design written in HDL is modular, i.e. similar to the structure of its block diagram, it's possible to translate block diagram of hardware design into HDL source code. The point of this idea is to get rid of designer's work on re-writing the block diagram into HDL language, as this can be automated. Designed plugin allows users to create block diagrams and new hardware components on different layers and switch between these layers interactively. Modul also implements the translation of drawn diagram into VHDL source code.
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Information Systems Based on a Virtual Filesystem
Jonáš, Martin ; Očenášek, Pavel (referee) ; Burget, Radek (advisor)
This term project describes the concept of information system based on the virtual file system and the reasons which led to the creation of this concept. It discusses the basic approaches to solve common parts of the functionality of information system (such as access rights management, structure of data and managing configuration of system) and tries to find the concept that solves this functionality consistently and easily. The main objective of the proposed concept is to create a system that brings simplicity and intuitiveness of user interface, unification of common functionality and maximum flexibility and extensibility. The whole concept is based on the representation of the system as a tree of virtual files on which user performs actions.
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Data Extraction from Product Descriptions
Sláma, Vojtěch ; Očenášek, Pavel (referee) ; Burget, Radek (advisor)
This work concentrates on the design and implementation of an automated support for data extraction from product descriptions. This system will be used for e-shop purposes. The work introduces present approaches to information extraction from HTML documents. It focuses chiefly at wrappers and methods for their induction. The visual approach to information extraction is also mentioned. System requirements and basic principles are described in the design part of the work. Next, a detailed description of a path tracing algorithm in document object model is explained. The last section of the work evaluates the results of experiments made with the implemented system.
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Using Near-Field Communication (NFC) to Improve Messaging Privacy on Android OS
Karmazín, Jaromír ; Trchalík, Roman (referee) ; Očenášek, Pavel (advisor)
V této práci vytváříme jednoduchý systém pro rychlou textovou komunikaci (IM), který využívá technologii Near-Field Communication (NFC) ke zlepšení bezpečnosti a soukromí. V první části zkoumáme samotnou technologii NFC. Poté se věnujeme možnostem NFC v operačním systému Android pro chytrá mobilní zařízení a také existujícím aplikacím, které tyto možnosti využívají. Rovněž zkoumáme nejmodernější přístup k bezpečnému IM, zejména Signal Protocol a jeho open-source implementaci pro Android. Dále pak navrhujeme IM systém, který používá Signal Protocol pro šifrování zpráv a NFC pro výměnu kryptografického materiálu, aniž by vyžadoval použití telefonních čísel nebo důvěryhodnou třetí stranu. Nakonec předkládáme vzorovou implementaci klientské i serverové aplikace a zhodnocení vlastností tohoto systému z hlediska soukromí a bezpečí.
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Interactive Web Page Design Environment
Moravec, Jaroslav ; Očenášek, Pavel (referee) ; Burget, Radek (advisor)
This master's thesis describes an environment for creation and management of interactive web pages. It deals with both the structure design and the visual part. The basic idea is that the page consists of individual elements that can be arbitrarily composed together. There exist several kinds of such elements: interactive, content, database and informative elements. Furthermore, the environment includes tools for account management, access control, database administration, auditing, multilanguage support and some more.
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Web Information System and its Security Principles
Nehasil, Filip ; Rychlý, Marek (referee) ; Očenášek, Pavel (advisor)
The main topic of the thesis is problem of the security of the web application. Spheres that are likely to be vulnerable are thoroughly examined and ways of protecting the application in the area of access control, data transfer, user input, output and state keeping are suggested. Furthermore, with regard to the security, possible solutions of audit, backing up, web server security, database design and protection against spam robots are described. This project is also concerned with the analysis of requirements, detailed design and implementation of the club information system with demonstration of mentioned security solutions. The systems of members' evidence, evidence of breeding dogs and their pedigrees, publication of actions and results and the content management system of other sections of the web presentation are among others implemented within the scope of this IS. All the implementation solutions are based on HTML, CSS, JavaScript, PHP and MySQL technologies.
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