National Repository of Grey Literature 216 records found  beginprevious21 - 30nextend  jump to record: Search took 0.07 seconds. 
Virtualization of computing machines and operating systems
Kadlíček, Jan ; Burget, Radim (referee) ; Novotný, Vít (advisor)
This bachelor thesis is about virtualization of machines and learning how to work with virtualization technologies, such as VirtualBox, VMware, Hyper-V, Docker Container, this paper also compares their parameters. Important part of this paper is to choose the best virtualization technology for tracking on Department of Telecommunications, based on results of tests.
FITKit Virtualization
Vavruša, Marek ; Korček, Pavol (referee) ; Vašíček, Zdeněk (advisor)
Thesis presents a method of FITkit hardware platform virtualization. First part describes an extension of the libkitclient library to support virtual devices and discusses a protocol design for FITkit device sharing in the IP networks. The protocol is extended to offer an automatic device discovery in local network based on UDP multicast. The second part of the thesis presents an architecture for a remote compilation of FITkit platform binaries and the implementation in the fcmake and QDevKit. The last chapter summarizes implemented tools and presents possible future extensions.
SDN in LAN networks
Kříž, Daniel ; Hošek, Jiří (referee) ; Slavíček, Karel (advisor)
This bachelor's thesis is devoted to the problem of Software Defined Networks. It describes the concept of SDN, the OpenFlow protocol, which is an integral part of this issue, and lastly is mentioned the concept of NFV. The goal is to research this issue, gather information about the available open source controllers and choose the most suitable ones. Furthermore, a proposal for the implementation of the laboratory task and a~list of available components have to be created. The final task is to construct and test laboratory task and then with help of this knowledge create laboratory manual.
Draft of Changes IT Infrastructure in Firm
Vokálek, Vojtěch ; Petlachová, Jana (referee) ; Ondrák, Viktor (advisor)
This Bachelor thesis concerns with the changes of IT infrastructure based on theoretical knowledge and analysis current situation of information system on expected change is the implementation of cloud computing, which the company plans to provide to their customers as a service. Calculation of return on investment and total cost is also a part of the thesis.
Automatic configuration of workstations in Cisco academy laboratory
Homolka, Jiří ; Jelínek, Mojmír (referee) ; Komosný, Dan (advisor)
My thesis is focused on the subject of working with distant stations connected with the laboratory control of Cisco academy. Station operations, i.e. laboratory control, have been carried in the environment of the Linux operating systems. The first part of the thesis includes a description of the laboratory, its network architecture and software equipment. Also, the VMware tool is described here. VMware tool is intended for virtualization of computer stations, where the virtual station is created. In this virtual station another operating system may be run. The problems of the command interpreter, its function and possibilities are described here too. Main attention is devoted to the Bash command interpreter and to the creation of the scripts. There are descriptions of the basic tools intended for the network communication with the distant stations. Among the most important parts belong the protected communication, the production of the autentization keys as well as the tool for data recording on more stations at the same time. The description of the access rights to the files and directories is included too. The target of this thesis was to create the scripts in the Bash programming language. The scripts are focused on working with the laboratory stations. They are the sublayers of the common project for this laboratory control. They were developed for the cooperation with the the web interface and MySQL database, created by Bc. Zdeněk Hrabal. The Scripts are intended for the finding information about the stations and virtual systems, and also for the recording images and configuration files of the virtual systems at the distant stations. Recording files and directories is enabled too. The other scripts deal with the erasing and changing of the rights of the particular files and directories. Setting commads with the super-user competence is used at this place. The scripts for the switching on and off the laboratory workstations were created too. To solve the problem described above I chose to develope more scripts. Each of them subserves the particular part of the task. The form of the input and output data of the scripts was select with the reference to the cooperation with the web interface and database. The data are implemented by the form of the input and output files. The output information and the process of the carried operations are displayed through the web interface. The scripts together with the web interface are placed and run from the school server adela.utko.feec.vutbr.cz. In the thesis the settings of the access privileges for the current directories and the files of virtual systems and scripts are presented too.
Application for monitoring of Linux servers
Kačmarčík, Martin ; Ricci, Sara (referee) ; Komosný, Dan (advisor)
PlanetLab Server Manager je aplikace, která pomáhá uživatelům realizovat projekty zaměřené na vývoj aplikací pro distribuované sítě. Aplikace primárně umožňuje vyhledávání serverů podle jejich geografické polohy a umožňuje přístup na tyto servery a jejich vykreslení na mapě. Práce čtenáře seznámí se síťí PlanetLab a její infrastukturou. Dále popisuje aplikaci PlanetLab Server Manager (také známou jako plbmng) a identifikuje problémy v její aktuální verzi. Diplomová práce se zaměřuje na řešení identifikovaných problémů a specifikuje provedená vylepšení do aplikace. Také je v ní pomocí nově přidané funkcionality provedena analýza stavu sítě PlanetLab. Tato práce se zaměřuje na vylepšení stávající funkcionality tím, že je aplikace plně přepsána do jazyka Python 3. Kvůli stávající implementaci v jazyce Bash, jehož vlastnosti se od jazyka Python liší, bude nutné kompletně přeplánovat stávající funkce aplikace, aby bylo plně využito výhod jazyka Python. Aplikace je také rozšířena o možnosti filtrování serverů na základě jejich stavu a další vylepšení. Zdrojové kódy aplikace jsou dostupné na repozitáři GitHUB pod licencí MIT a dále je aplikace dostupná v repozitářích PyPI.
Virtualisation as a data network simulation apparatus
Chapčák, David ; Burda, Karel (referee) ; Krkoš, Radko (advisor)
This bachelor’s thesis deals with the use of virtualization, especially for data network simulation. The theoretical part deals with virtualization including virtualization division into groups and evaluate the advantages and disadvantages of virtualization. The following part describes several common virtualization tools. The majority of the text is devoted to simulation and presents several network simulators, which use virtualization. In the next part several experimental networks that are currently operating are described. Furthermore the measurement portion is realized where the measured parametres gathered from virtual network are compared with data measured in real network. The final section summarizes the results and draws conclusions.
Deploying Virtual Servers for ISP
Zelený, Jan ; Michal, Bohumil (referee) ; Kašpárek, Tomáš (advisor)
This thesis describes principals of virtualization based on the Xen project. Text focuses mainly on putting system into service for purpose of it's subsequent use by ISPs. The goal of this work is also to explore the possible usages of virtualized systems based on the Xen by ISPs. One of these possibilities will be specified to the point when it will by usable or it will be able to be developed independently of author of this work. This work also designs and mostly implements system, which can be used as a base for wide spectrum of of services, when installing these services doesn't effect the rest of the system.
CDN and clustering in GNU/Linux with performance testing
Mikulka, Pavel ; Pelka, Tomáš (referee) ; Šimek, Milan (advisor)
Fault tolerance is essential in a production-grade service delivery network. One of the solution is build a clustered environment to keep system failure to a minimum. This thesis examines the use of high availability and load balancing services using open source tools in GNU/Linux. The thesis discusses some general technologies of high availability computing as virtualization, synchronization and mirroring. To build relatively cheap high availability clusters is suitable DRDB tool. DRDB is tool for build synchronized Linux block devices. This paper also examines Linux-HA project, Redhat Cluster Suite, LVS, etc. Content Delivery Networks (CDN) replicate content over several mirrored web servers strategically placed at various locations in order to deal with the flash crowds. A CDN has some combination a request-routing and replication mechanism. Thus CDNs offer fast and reliable applications and services by distributing content to cache servers located close to end-users. This work examines open-source CDNs Globule and CoralCDN and test performance of this CDNs in global deployment.
IT Infrastructure Enhancement through a Server Virtualization
Stančík, Michal ; Otáhal, Petr (referee) ; Ondrák, Viktor (advisor)
The thesis aims on a proposal of server infrastructure utilization within a particular organization based on a virtual environment. Analysis of current company’s IT infrastructure was chosen as a starting point for subsequent draft of suitable server consolidation solution that includes all necessary aspects from server configuration up to virtual environment conversion itself. Price calculation and benefits of proposed solution are listed at the end of the thesis.

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