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SIP/H.323 gateway with Asterisk PBX
Smékal, Lukáš ; Herman, Ivo (referee) ; Kovář, Petr (advisor)
This Bachelor’s thesis is engaged in problems of the internet telephony and its usage in today´s world, which offers many techniques how communicate among people. The internet telephony gives telephoning other format and shows new possibilities of IP protocol´s usage. The thesis is focused on the most used protocol corveying functions of VoIP technology, it is the standard H.323 and also the SIP protokol, which even if provides the same functions as H.323 is based on the different principle and because of its easy structure, it prepares good conditions for rise of new applications and services in internet telephony. In this thesis the Open Source private branch exchange Asterisk is also discussed. Asterisk, not only thanks to the usage of Voice over IP provides against the standard analogue private branch exchange many advantages and thanks to its modularity and expansibility also offers much more possibilities of configuration. The Session Initiation Protocol (SIP) is the basic protocol, with which Asterisk works. The standard H.323 is not implemented in the basic installation of Asterisk, therefore it is necessary to do its suitable installation and congiruation, in order to expand exchange´s functions for work with this standard and also to be able to realize translation between the protocol SIP and the standard H.323. The results, which I accomplished, are presented in the chapters „Dosažené výsledky“ and in the conclusion of the bachelor’s thesis.
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Establishment of the Linux internet gateway using advanced filtering
Matocha, Tomáš ; Pust, Radim (referee) ; Jelínek, Mojmír (advisor)
The thesis Establishment of the Linux internet gateway using advanced filtering focuses on~the installation of~the Linux operating system on~the older computers, that functions as a gateway to connect clients in the internal network to the Internet. The thesis describes creation an advanced filter with using iptables. Shows some types of security against attacks from the Internet. The other chapters are discussed, advanced traffic control mechanism (such as a TC and a qdisc). The system queue, it is highly beneficial where it is necessary to hierarchically divide traffic between users. It describes types of queue and assembled configurations for clients in the internal network. Next chapter describes the DNS server caching-only type and application denyhosts, which increases the overall security system. Have your own DNS server is certified, especially if we want to reduce the data traffic. Last chapter describes the RADIUS server and its implementation using Apache and MySQL database. Furthermore, the configuration options are described and the examples of the particular configurations are provided. Finally, it presented a system for authentication through the RADIUS server. The thesis seeks to provide a~complex view of security and filtering.
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Self-organizing MESH wireless networks
Němec, Petr ; Burget, Radim (referee) ; Růčka, Lukáš (advisor)
This master thesis deals with self organized Mesh network. It describes routing and particular routing protocols, which are used in these networks. The thesis deals with Mesh network QoS assurance. Analysis and theoretical background of Mesh networks, routing and router protocols are included in the first chapter. Basic models of assuring Quality of Service are also described. Those are Best Effort, IntServ and DiffServ. Second chapter describes the devices used in the specific Mesh network topology - Trospos 5210 MetroMesh router produced by Motorola Canopy. Basic settings and properties required to establish a Mesh network are described. Next part of the thesis is the design implementation, which involves creation and configuration of the Mesh Network. Network configuration consisting of two Gateway points and afterwards behaviors of the network in a steady state versus one gate failure are compared. Furthermore, implementation of QoS according to components that support two types of QoS assurance regarding type of bandwidth reservation and defined traffic classes. In conclusion, the thesis describes measurement methods of QoS parameters for chosen applications, evaluation and comparison of measurement results for both types of Quality of Service assurance.
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Conservation Area Kroměříž - architecture–urban design of the selected site
Dočekalová, Pavla ; Vojtová, Lea (referee) ; Hrabec, Josef (advisor)
The master's thesis describes the design of urban interior street Vejvanovského in urban conservation Kroměříž and operational and functional adaptations street stalls in the context of surrounding roads and spaces. As part is design of architectural studies for three new objects. Objects respond to the needs, space, matter, and the street and the surroundins. The plots of selected street is designed gallery, hotel with restaurant and city market.
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HOUSE ON THE FOOTHILL - TOWN HOUSE IN THE HISTORICAL CENTRE
Veselá, Marie ; Rudiš, Viktor (referee) ; Oplatek, Jiří (advisor)
Potential sites lies not only in its location but also the dominant position it holds to their surroundings. Undeveloped plot represents a "node" or "island" ... loosening strictly linear character Bakery. It is a place which brings together three disparate streams - Classical serious at the running part of Mendel Square, dramatically quarreling upper section flowing into the area from Hus class and insignificant Anenská that, if there "just got lost." All "three" street, however, are closely connected with the plot and the transformation of space clearly indicates their transformation. A distinctive feature of the property is its visual exposure of looking from Mendel Square, the plot creates a "picture" to which the pawn closer. This image should be interesting, changing to attract one's attention for more than just one or two seconds. The image should not least communicate - what is happening on the ground, what links are individual objects ... a landmark and should, for use by infantrymen use. It should also not be attractive from a distance - when one zooms in close proximity, should be surprised by the discovery of something new, something that was not noticeable from a distance, it should be attention to detail, or idea that can be seen only at close contact.
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Industrial entrance gate
Hrozek, Petr ; Malášek, Jiří (referee) ; Kašpárek, Jaroslav (advisor)
This thesis proposes an overall constructing solution of an industrial entrance gate and controlling calculations for the chosen drive and frame of the gate. The thesis includes a calculation for the proposal of drive, strong calculation and complete drawing documentation.
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Analysis of product development in the telecommunications industry
Hofrichter, Jakub ; Bruckner, Tomáš (advisor) ; Jirovský, Lukáš (referee)
The thesis is focused on product development in companies in the telecommunications industry. These companies provide products to end customers. The introductory section lists and describes the basic concepts accompanying the issue. Also described herein is a method for achieving the objectives of the thesis, that is based on personal interviews with specialists in selected telecommunications companies. The first objective is to identify variables affecting success launching a new product to market services. The thesis defines the internal and external factors in the organization. Part of the analysis is to assess the current state of internal RFC, that was unexpectedly during the development of a long implementation period (TTM). The content of this thesis is identification of key factors and their impacts on implementation also unveiling constraints of the development process. These constraints are in the view of issues that prevent better performance of the relevant processes. The third and the main objective of this thesis is based on previous analyses, proposal of improvements that could contribute in the future to better product development. The proposed improvements are consulted with a specialist Demand Management to determine the feasibility and potential benefit in practice. The greatest contribution of the thesis lies in the proposed improvements and their assessment for future implementation.
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The Gates. Environmental Creation in the Landscape.
PRÁZNOVSKÁ, Jana
The submitted work deals with the topic of the gate. The theoretical part analyses this structural and cultural feature, particularly from its architectural point of view, and focuses on the origin of gateway, its evolution throughout the centuries, and on the description of the best known and most famous gates, both throughout the world and in the Czech Republic. In the thesis, the gate is characterised as a symbol with different meanings in various cultural contexts. The implementation of the author´s photographic project entitled ?The Gates to the Past? is further presented in the practical part of the work. The text also describes a brief essay on the relation of aesthetic education to the environmental artistic works and develops its potential for educational goals emphasizing humanistic objectives.
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Design of computer network training room
KRHÁNEK, Jiří
This project describe design of computer classroom for learning computer networking. At first I explain how create computer network. I decide about hardware and network items to use for realization fully functional computer network. Below I describe network setting in Operating Systems. At the end I fixate to solution particular cases which could be resolved by students in this computer classroom.
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