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Design and realization of the mail-server using MySQL database
Smahel, Petr ; Lattenberg, Ivo (referee) ; Jelínek, Mojmír (advisor)
The thesis involves the design and implementation of a complete mail server using the GNU/Linux platfrom built on quality opensource software, using MySQL database. The first part deals with general problem topics concerning internet electronic mail and also the characteristics of GNU/Linux and related database systems. The second part deals with getting acquainted with concrete mail server implementations and products, while the third part deals with the installation and configuration of these products.
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Communiacation software for terminal clients of a Linux server
Hanák, Karel ; Jeřábek, Jan (referee) ; Jelínek, Mojmír (advisor)
The thesis contains a proposal and implementation of an environment convenient for operation of network client applications which use common terminals. It also consists of implemented examples where the way of their usage is presented. The centralized way of communication is the basis. The approach is used also for the possibility of their joining with managing subsystems, i.e. unlimited ways of regulation of systems for real estate management, access to devices, user authority access to access data points to the devices. The environment is based on operation system Linux and database MySQL. Their realization is supposed on a server, in the network environment. This relates also to the overall security policy and this work also focused on social treatment of clients possibilities.
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Artificial intelligence for application services classification in network communication
Jelínek, Michael ; Fujdiak, Radek (referee) ; Blažek, Petr (advisor)
The master thesis focuses on the selection of a suitable algorithm for the classification of selected network traffic services and its implementation. The theoretical part describes the available classification approaches together with commonly used algorithms and selected network services. The practical part focuses on the preparation and preprocessing of the dataset, selection and optimization of the classification algorithm and verifying the classification capabilities of the algorithm in the various scenarios of the dataset.
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Internet nodes localization using synthetic coordinate systems
Švéda, Jaroslav ; Jelínek, Mojmír (referee) ; Komosný, Dan (advisor)
This thesis deals with predicting the latency between two network nodes, such as the two stations, two servers or server and station. The main reason for adoption of effective latency prediction techniques is the elimination of network load caused by unnecessary repeated transmissios or by direct measurement of the latency. Of the many proposed methods of latency estimation, this thesis is focused on methods using artificial coordinate systems with primary focus on the Vivaldi algorithm. Characteristics of the latency prediction methods and properties of various coordinate systems used in practice are evaluated. The issue of the number of dimensions of space defined only by the latency matrix between nodes is also mentioned. Furthermore, some other systems, based on logical clustering of nearby nodes, are mentioned. Description of simulation software VivaldiMonitor developed as part of the thesis is included. The primary purpose is analysis of the behavior of overlay networks implementing Vivaldi algorithm with less than a few hundred nodes. The Vivaldi algorithm is assessed by several simulations carried out using the aforementioned software.
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Investment Plan Evaluation
Jelínek, Michal ; Nováčková, Eva (referee) ; Luňáček, Jiří (advisor)
The diploma thesis focuses on complex economic evaluation of the investment project regarding the purchase of machining centre. Based on the elaborated literature review are those findings applied to the real investment project. Economic efficiency is calculated using the identified cash flows, discount rate and static and dynamic methods. Subsequently are identified project risks and their significance. In conclusion, the results are summarized and is reported recommendation whether or not to implement the project.
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Design of the method to increasing of accuracy of the tunable optical filter optical spectra measurement
Jelínek, Michal ; Holík, Milan (referee) ; Mikel, Břetislav (advisor)
The thesis deals with the method for the improvement of the measurement accuracy in the optical frequency spectra measurements based on tunable optical filters. The thesis starts with the selection of the proper optical filter that is suitable for accurate light spectrum measurement. The selected filter was then used for the design and realization of the measurement system for the inspection of the fibre Bragg gratings. The system incorporates a reference block for the compensation of environmental influences, an interferometric verification subsystem and a PC - based control software implemented in LabView. The preliminary experimental verification of the measurement principle and the measurement system functionality were carried out on a testing rig with a specially prepared concrete console in the UJV Řež. Advanced tests were conducted on nuclear power plant’s containment shape deformation measurement in Temelin.
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Multigateway routing system based on the Mikrotik router
Straník, Jan ; Novotný, Vít (referee) ; Jelínek, Mojmír (advisor)
This thesis deals with the routing of data traffic to multiple gateways with a network operating system MikroTik RouterOS, which has become widespread in the small firms and home users. It is aimed to describe the problem with using multiple gateways. RouterOS description itself and its core components needed to solve this issue, such as routing, packet marking and quality assuranceservices. It also deals with the description of the particular design and testing. The proposedsolution is verified on the example of a real situation. Finally, the proposed solution is compared to alternative solutions, commonly used in practice.
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Design and realization of client application for cooperation with ONET Modeler
Polak, Martin ; Jelínek, Mojmír (referee) ; Molnár, Karol (advisor)
The bachelor thesis „Design and realization of client application for cooperation with OPNET Modeler“ is about trying to bring a client to easier and better communication with the server. Open new opportunities for effective work in the network. Goal of this work is to interconnect two communication stations, which will together communivate. OPNET communicates with an external program which redirects the data to the network layer. The work describes the individual steps in creating a model client. Part of the work is introduction to the OPNET Modeler simulation environment, whereupon it is tied together a detailed desciption of programming of an external application.
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The Information System Development for the Protected Workshop
Jelínek, Marek ; Pfliegler, Petr (referee) ; Videcká, Zdeňka (advisor)
The object of this labor is to analyze of business processes and design an information system for support the cleaning services in sheltered workshops by Service Company s.r.o The result of this detailed analysis is the necessary basic for the design of an information system which respects the current model of the existing operations and also removes some of the shortcomings. Executed proposal also specifies the user access to the information system. Proposal defines the functions of modules, relationships and access to data. The proposal also specifies for all data flow and data warehouses. In the final stage is made a proposal of next action.
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The realization of the data communication for application to the mobile networks
Sodomka, Lukáš ; Růčka, Lukáš (referee) ; Jelínek, Mojmír (advisor)
Thesis deals with data technology, which can be used for communication between mobile and IP networks. The aim of the project is to design data communication and the subsequent implementation of the mobile and IP networks. First of all, it made an introduction to telecommunications systems with focus on GSM. Subsequently, the work examines data provided by GSM technology standard with a focus on GPRS, which is in the other chapters discusses in more detail. The resulting communication application protocol is designed in two versions, which is achieved by the creation of an autonomous system. Communication is implemented using JAVA programming language, which created an application client, server and implemented application protocol. Client application is tested on a mobile phone with Internet connection with support for GPRS technology. Server application is installed on a PC workstation, which is assigned a public IP address, it is easily addressable from the Internet.
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