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HTTP Application Anomaly Detection
Rádsetoulal, Vlastimil ; Homoliak, Ivan (referee) ; Očenášek, Pavel (advisor)
The goal of this work is to introduce anomaly detection principles and review its possibilities, as one of the intrusion detection methods in HTTP traffic. This work contains theoretical background crucial for performing an anomaly detection on HTTP traffic, and for utilising neural networks in achieving this goal. The work proposes tailored design of an anomaly detection model for concrete web server implementation, describes its implementation and evaluates the results. The result of this work is successful initial experiment, of modeling normal behavior of HTTP traffic and creation of the mechanism, capable of detection of anomalies within future traffic.
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Camera Recording Management System
Šulc, Ondřej ; Rychlý, Marek (referee) ; Očenášek, Pavel (advisor)
The aim of this bachelor thesis is to create a network security system focusing on compatibility with the widest possible group of IP cameras from various manufacturers and support for remote access to records even from places outside the local network. This problem is solved using two closely cooperating applications. The first application runs on a device in the local network (in our case miniPC Raspberry Pi). The application creates the records by receiving and storing RTSP transmissions from individual cameras. It then modifies these records into a form usable for display on websites and sends the second application from which the user can access them. This application is referred to in the text as agent or agent application. The second application has a web user interface and serves the end user as a tool to manage agents, IP cameras and captured records. By principle of the application, it is important for it to be accessible on a publicly available domain. This application is referred to in the text as web or web application. The use of this architecture does not violate any of the network communication standards, which include, in particular, the initialization of communication from the network behind the NAT service.
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Censorship in the Internet
Rajecký, Michal ; Rychlý, Marek (referee) ; Očenášek, Pavel (advisor)
Internet censorship is a phenomenon of the time, which significantly restricts freedom of speech. The aim of this work was to find out the current state of Internet censorship in China. As part of the analysis, I designed and implemented a tool for testing website availability and detecting censorship of potentially blocked keywords. This tool verified different levels of access to a target server. The analysis showed that the city of Beijing forms a significant part of China's system in the implementation of censorship, as it loses a large part of Internet communication, up to 97% of all lost data. Testing also revealed the variability of censorship over time. On average, 57.6% of websites received different results during the testing period. This article provides an up-to-date picture of the state of Chinese Internet censorship and its impact on users. Censorship in China can be considered centralized, very extensive and variable over time.
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Application for Verification of Data Accuracy in the SAP HCM Module
Kolb, Jakub ; Očenášek, Pavel (referee) ; Bartík, Vladimír (advisor)
Main goal of this bachelors thesis is to show issue of data checking in system SAP. Since this system is extensive, it is nearly impossible to control the data manually. In this bachelor thesis I am describing particular proposals for improving the processes including their use in practice. This bachelor thesis is divided into three parts. In first part is mentioned necessary theory used for implementing application for data checking. Next I describe particular important data dividing with proposal of class and domain diagram. In last part of thesis I pay attention to realization and programming itself in programming language ABAP.
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Application for Tracking Devices for Windows Phone OS
Pupák, Juraj ; Trchalík, Roman (referee) ; Očenášek, Pavel (advisor)
This application deals with recording of position about phone devices with help of system GPS. The application is implemented for platform Windows Phone 7.5. The Application allows to create profiles, which are evaluated with recorded positions. The evaluation is made through 2 points with Haversine formula. The theoretical part of thesis deals with technologies and GPS system, the practical part deals with design and implementation.
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Contact Synchronization for a Private Cloud
Sendler, Jaroslav ; Očenášek, Pavel (referee) ; Trchalík, Roman (advisor)
This masters's thesis is studying the possibility of Create a synchronization tool for device running on Android. It is the ability to sync contacts from portable devices in a private cloud, which is here substituted by Directory server. For working with directory, server uses LDAP server and its implementation of OpenLDAP. The first part is aimed at the description of the structure and directory services. Following is analysis and separation requirements. The whole project is completed by proposals and implementation that relate to the safety and advanced synchronization.
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System for Integration of Payment Terminals
Randa, Jakub ; Bartík, Vladimír (referee) ; Očenášek, Pavel (advisor)
This master's thesis describes the process of integration of electronic payment terminals into another technological solutions and eventually enabling the opportunity to make electronic payments using these solutions. It analyses the current situation on the field of electronic payments and the possibilities of own solution for these payments. It discusses the security aspects of payment operations and terminals and it also describes current legal situation involving the electronic payments in Czech Republic. It describes the process of implementation of the application for payment terminal integration and analyses the results of testing.
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Multi-Label Classification of Text Documents
Průša, Petr ; Očenášek, Pavel (referee) ; Bartík, Vladimír (advisor)
The master's thesis deals with automatic classifi cation of text document. It explains basic terms and problems of text mining. The thesis explains term clustering and shows some basic clustering algoritms. The thesis also shows some methods of classi fication and deals with matrix regression closely. Application using matrix regression for classifi cation was designed and developed. Experiments were focused on normalization and thresholding.
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Censorship in the Internet
Tomaga, Jakub ; Rychlý, Marek (referee) ; Očenášek, Pavel (advisor)
{This Diploma thesis deals with Internet censorship. Various technical solutions for Internet censorship are presented together with censorship analysis options. Several possibilities for blocked content access and censorship circumvention in general are discussed. The topic is analyzed from the global point of view and is related to the People's Republic of China.
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