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Wireless IP Camera With a Raspberry Pi
Sidor, Peter ; Botta, Miroslav (referee) ; Červenka, Vladimír (advisor)
This thesis deals with the developing of an additional module for Raspberry Pi and with optimization of the efficiency of powering the whole device. The thesis also deals with the acceleration of the Operating System which is used by the entire device. The first part of this work describes the principles of functioning of the sensors and DC/DC converters. The work focuses on the selection of proper components for this module. The Printed Circuit Boards of the selected DC/DC converters were created in the program Eagle for efficiency measuring. As for the next part, there was created a program for turning on and off the entire device. This part presents a description of the possibilities of accelerating the operating system for Raspberry Pi. The last part of the thesis focuses on design of the final operating system.
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Geolocation of Internet nodes using IP address analysis
Henek, Jan ; Balej, Jiří (referee) ; Komosný, Dan (advisor)
Tato práce se zabývá problematikou určování fyzické polohy pomocí rozboru IP adresy. Zkoumanou metodou geolokace je databáze Whois. Práce je rozdělena na teoretickou část – která obsahuje obecný popis geolokačních metod, práce se souřadnicemi a výpočtem vzdáleností na zemi, a na praktickou část – kde je popsán program využívající Whois k nalezení stanice. Na závěr jsou předloženy a komentovány výsledky měření přesnosti databáze Whois, a také porovnány s jinými metodami geolokace. Aplikace je přiložena na CD.
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Effective Network Anomaly Detection Using DNS Data
Fomiczew, Jiří ; Žádník, Martin (referee) ; Kováčik, Michal (advisor)
This thesis describes the design and implementation of system for effective detection of network anomaly using DNS data. Effective detection is accomplished by combination and cooperation of detectors and detection techniques. Flow data in NetFlow and IPFIX formats are used as input for detection. Also packets in pcap format can be used. Main focus is put on detection of DNS tunneling. Thesis also describes Domain Name System (DNS) and anomalies associated with DNS.
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Network traffic and cyber attacks generator on the FPGA platform
Heriban, Radoslav ; Smékal, David (referee) ; Lieskovan, Tomáš (advisor)
This thesis is focused on the most common and every day more popular threat of DoS attacks. All networks are vulnerable to this kind of attack, and with growing popularity and intensity it shouldn't be underestimated. The goal of this thesis was creating hardware accelerated generator of DoS traffic intented for testing our own networks and identifying the risks. FPGA technology is used for this task, since it has proven to be more effective way of prototyping hardware design then developing ASIC. The language used to describe desired design behavior is VHDL. Designed ICMP and UDP flood attacks are simulated in Xilinx ISE development environment. Description of problems faced before any result was reached is also included for future researchers interested in similar projects.
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Longest Prefix Match Algorithms
Suchodol, Jaroslav ; Puš, Viktor (referee) ; Tobola, Jiří (advisor)
This work deal with routing in IP networks, particularly the issue of finding the longest matched prefix. Problems of finding the longest matched prefix solves many sophisticated algorithms. The main task of this work focuses on the following algorithms - Controlled Prefix Expansion, Lulea Compressed Tries, Binary search on intervals and Binary search on prefix length. Algorithms are described and followed by software implementation in Python. Output work is the analysis/comparison of different algorithms in terms of memory consumption and number of memory accesses at worst.
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Analysis of geolocation databases
Zima, Štefan ; Červenka, Vladimír (referee) ; Komosný, Dan (advisor)
This thesis is focused on collecting data from commercial geolocation databases and its analysis. The theoretical part discusses techniques of IP geolocation, briefly describes commercial geolocation databases and mechanisms for accessing their geolocation services. The practical part of this thesis involves implementation of scripts for collecting and modification data retrieved from commercial geolocation databases for further analysis. First script collects the data and store them in output files in specified format. Second script modifies gathered data to achieve better accuracy. Detailed analysis is performed afterwards. Analysis is performed at several levels. This includes country, region and city accuracy as well as accuracy on latitude and longitude parameters. Output of this analysis will be conclusive, and will also display accuracy of tested geolocation services. The aim of this thesis is to analyze currently available commercial geolocation services and to prove their accuracy. Used scripts are implemented in Python programming language in version 3 using modules urllib, re and json. Scripts are test on commodity hardware with Linux operating system.
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Longest Prefix Match Algorithms
Skačan, Martin ; Puš, Viktor (referee) ; Tobola, Jiří (advisor)
This bachelor's thesis deals with the algorithms for longest prefix match (LPM), which is the basic operation of the packet classification and of the routing in the IP computer networks. It is introduced the necessary theory and the analysis of the chosen algorithms - Trie, Tree Bitmap, Shape Shifting Tree and Multi-match. These methods were closely described and they were implemented in the programming language Python. Within the implemented algorithms were performed tests and simulations considering their memory demands with the aim to identify the best method for prefix collections about the size of tens to thousands rules.
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Videoconference System for Distance Learning
Regueyra, Philip ; Szőcs, Juraj (referee) ; Polívka, Michal (advisor)
The aim of my diploma thesis is to introduce the problematic of today’s videoconference system and to compare the existing solutions. First chapters of my work are dedicated to a description of the theory of the conference system. Furthermore there is described the application Skype and application WebEx. These are the projects that are the nearest to the submission of this work. On the basis of the acquired information, the thesis is dealing with the creation of my own solution of video conference system. In the third chapter there are described all the used technologies needed for the realization of the project. The thesis is then dealing with the creation of own client on the platform Silverlight. This client is working on the components that play the multimedia content and on the service WCF RIA. After the part dedicated to a creation of the client, there are described the settings of services Windows Server 2008, on which the solution is realized. There are described the settings of services of web server, services of multimedia media, settings of SQL server and usage of program Windows Media Encoder. The last part is dedicated to a testing and plotting of the functionality of created video conference system. In the conclusion of the work there are evaluated the results of the work and described possible directions, where the development of the client of video conference could proceed.
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TCP/IP Layer for FPGA
Kekely, Michal ; Korček, Pavol (referee) ; Kajan, Michal (advisor)
This bachelor thesis deals with the design and implementation of network communication using network protocols TCP and IP in hardware. Goal of this thesis is to design and implement unit capable of this sort of network communication using aforementioned protocols in FPGA and also to test and verify it. Outcome should give hardware devices, which don't have access to suitable software, the opportunity to communicate using computer networks.
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