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Modelling and Reliability Analysis of Campus Network at the BUT
Kraus, Zdeněk ; Ryšavý, Ondřej (referee) ; Veselý, Vladimír (advisor)
This thesis informs about technologies and architecture of computer network at BUT. It describes chosen technologies and some of theirs variants. Further, it contains simulation model design of a network switch device. That is followed by the model implementation with detailed description of model parts. Then, the model is tested on a set of simulation scenarios and it is evaluated in comparison with theoretical basis and real devices. In conclusion, thesis suggests future model development and improvements.
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SELinux application for Linux server security
Jirka, Michal ; Pelka, Tomáš (referee) ; Šimek, Milan (advisor)
This work is engaged in access control mechanism in GNU/Linux operating systems. At first discretionary and mandatory access control are compared and examine basic technologies based on mandatory access control. More closely is focused on project SELinux, whose generation of new rules is explained. Within the thesis is made application for logging evaluation and for writing new Type Enforcement rules.
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Measurement of the 802.11n standard properties
Halm, Martin ; Šebela, Radek (referee) ; Prokopec, Jan (advisor)
This bachelor’s thesis is bent on peruse standard 802.11n and inquest diversity from standard 802.11b, g. Standard 802.11b was, first used for wireless net „WLAN”. This standard was extensive standard 802.11g that the has bigger temporary carrier rate. This acceleration is incurred modulation OFDM. Next successor after these standards is standard 802.11n.
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Design of selected IEEE 802.1Q standard parts
Kliment, Filip ; Pristach, Marián (referee) ; Fujcik, Lukáš (advisor)
This thesis deals with network substandards from the TSN group (IEEE 802.1Q), which deal with prioritization of network traffic in TSN networks. These sub-standards include 802.1QBV and 802.1QBU, which have been described in more detail and compared in terms of network permeability and latency. Substandard 802.1QBU was chosen for the design implementation in FPGA. The design was described in VHDL. The devloped design was verified by simulations, using self-tests. The work includes synthesis and time analysis.
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Energy efficient building of cinema and gallery
Kučírek, Pavel ; Jelínek, Ondřej (referee) ; Blasinski, Petr (advisor)
The aim of the master project is to design a new building of the cinema with gallery and to design technical equipment. The building is „L“ shaped, the half of the building is single-storey and the other half is two-storey, there is no basement. The most important rooms are on the ground floor – gallery, cinema, foyer and staff rooms. On the second floor there is projector room, sound engineer room, recording room and other sound adjusting rooms. The vertical loadbearing and non-loadbearing walls are designed from aerated concrete blocks, horizontal structure are cast-in-place reinforced slabs, the roof is flat. There is a reinforced concrete staircase that leads to the second floor, the building is insulated by ETICS. There are 4 HVAC units designed in the building, units are controlled with monitoring and controlling unit, also there are photovoltaics and rainwater storage systems designed. The project and visualizations were made in the ArchiCAD, MS excel, DEK, Halton HIT, AeroCAD software. Experiment validates measured data with mathematical analytics model that I used in 7 theoretical models of ventilator controlling possibilities to achieve energy savings. Re-sults will be compared and assessed.
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AUTOMATED TESTING OF 10GbE DEVICES
Avramović, Nikola ; Dvořák, Vojtěch (referee) ; Fujcik, Lukáš (advisor)
Tato práce se zabývá návrhem modelu pro funkční verifikaci a návrhem syntetizovatelného testru 10Gb Ethernet zařízení, které používají XGMII rozhraní. Pro popis modelu je použit programovací jazyk VHDL. Práce zahrnuje vytváření bus functional modelu a návrh testru, který se implementuje jako genericky self-test modul. Výsledný návrh umožňuje verifikaci a testování PHY a MAC vrstve. Pro implementaci testru byla použita vývojová deska DE5-Net osazena FPGA obvodem Stratix V GX od firmy Altera.
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Attacks on active network elements
Ščepko, Richard ; Kacálek, Jan (referee) ; Polívka, Michal (advisor)
The bachelor thesis deals with the topic of the security of computer networks. The tasks of the bachelor thesis are the attacks on active network elements with the aim of the catching of data between two users. In the created structure with a stellate topology, the user stations have connect to the active element (switch). In the thesis, the individual ways of attacks and the significance of ARP proceedings to MAC addresses have describ. Several programmes have use in order to take control over the device. Due to a big amount of these active elements the source code of the programmes had to be alter. The work with the programmes ARPtool and ARPoison demanded the operational system Linux, in our case the distribution of Ubunt. The programme WinArpAttacker could be set off under the system Windows XP as well. The achieved results and the description of the practical part are discuss in detail in the summary of the thesis. The result is the catching communication with the help of the programme WireShark.
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Energy efficient building of kindergarten in Holubice
Čtvrtečka, Václav ; Uher, Pavel (referee) ; Blasinski, Petr (advisor)
The aim of the master project is to design a kindergarten in Holubice, Czechia. The building has three parts. First includes classrooms and auxiliary premises (locker rooms, washrooms, etc.), second technical and staff facilities and the third one includes a gym with equipment storage. The first two parts are designed using load-bearing masonry, reinforced concrete floor slab and flat roof. Gym has a load-bearing system combining masonry and structural frame covered by a semi-circular flat roof. The whole building is equipped with HVAC systems. Heating energy is supplied by two condensing gas boilers. Air quality will be maintained by an air conditioning system. Photovoltaic panels are placed on the roof to support electricity. Rainwater will be collected in accumulation tanks and further used for flushing on the toilets and garden irrigation. The project was developed using AutoCAD (drawings) and Revit. The secondary task of the work is an extensive measurement of the CO2 concentration in a room with forced ventilation. The aim is to combine automatic regulation of forced ventilation, depending on the concentration of CO2. The result of such regulation is higher air comfort, service life of individual HVAC members and saving electricity.
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Comparison of Cryptographic Libraries in Linux Environment
Bartoš, Milan ; Malinka, Kamil (referee) ; Barabas, Maroš (advisor)
Bachelor's thesis deals with the comparison of the three cryptographic libraries used in the Linux environment. These are GnuTLS/nettle, NSS and OpenSSL. These are compared in terms of support for basic cryptographic functionality (symmetric and asymmetric ciphers, hash algorithms, SSL/TLS), working with hardware tokens and SSL/TLS. Libraries are also compared in terms of API design with a focus on stability and work with certificates and the possibility of more independent use of the library in a single process.
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Wireless Networks Outdoor Mapping with GPS Localisation
Kabátek, Petr ; Šimek, Václav (referee) ; Očenášek, Pavel (advisor)
This thesis deals with the monitoring of wireless nets in terrain. The author will be browsing terrain and there will be extracted some information about accessible wireless nets. For parameters of wireless nets we consider for example the name of wireless net, signal strength, type of security etc. These parameters (of wireless nets and position) are going to be recorded and saved into the database. Using this database it will be possible to perform some further operations like generation maps of wireless networks or detection positions of access points, etc..
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