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Management of servers with Fedora operating system
Šuba, Filip ; Caha, Tomáš (referee) ; Komosný, Dan (advisor)
The diploma thesis deals with a tool for managing research projects in the global experimental network PlanetLab. It is possible to use the Planetlab server manager application for administration. As part of this work, the application was extended with new functions, which are mainly: obtaining information about the status of operation of individual servers, advanced server search according to the size of the server's operating memory, Linux kernel version. Furthermore, the feature of managing servers outside the Planetlab experimental network and the feature of copying files to selected servers were added. The application is available in the PyPI repository and the source code is published on the GitLab platform under the MIT license. The application is available for Linux and Mac OS. A manual in English was prepared for the application.
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Monitoring of servers with OS Linux
Šuba, Filip ; Frolka, Jakub (referee) ; Komosný, Dan (advisor)
This bachelor’s thesis deals with monitoring of a servers in experimental network PlanetLab. The beginning of the thesis is about PlanetLab network, terminology used within it and also projects realized in it. For generating information about node, has been created a module in Python, which has been integrated into application Plbmng. Application has been published under the MIT license on \url{www.github.com} and on Python Package Index www.pypi.org. For the application has been created manual and for the module has been created documentation.
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Measurement of PlanetLab experimental network
Andrašov, Ivan ; Bečková, Zuzana (referee) ; Komosný, Dan (advisor)
This thesis deals with measurement of transfer parameters for nodes in experimental network PlanetLab. In theoretical part of this thesis we analyse experimental network PlanetLab, basic terminology in this network, its goals and some current projects run- ning under this network. Next we analyse measured network parameters specifically Ping, SSH delay and respond to SCP. Practical part of this thesis is formed around real im- plementation of measurement where in specific sub chapters are written exact problems of said parameter together with source code.
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Measurement of PlanetLab experimental network
Andrašov, Ivan ; Polešáková, Zuzana (referee) ; Komosný, Dan (advisor)
This thesis deals with measurement of transfer parameters for nodes in experimental network PlanetLab. In theoretical part of this thesis we analyse experimental network PlanetLab, basic terminology in this network, its goals and some current projects run- ning under this network. Next we analyse measured network parameters specifically Ping, SSH delay and respond to SCP. Practical part of this thesis is formed around real im- plementation of measurement where in specific sub chapters are written exact problems of said parameter together with source code.
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Data collection from Twitter
Kmeť, Juraj ; Povoda, Lukáš (referee) ; Komosný, Dan (advisor)
The bachelor thesis deals with creating application for data gathering from social network Twitter. Data is gathered in real time with variable length of gathering. Theoretical part describes social network Twitter as a client but also as a tool for data gathering. The bachelor thesis identifies limits which need to be respected during the creation of Twitter applications. Another topic of the thesis is PlanetLab network, which is well known mainly by the network researchers and developers of network applications. History of PlanetLab is captured within the second chapter and the difference between PlanetLab and other research networks. Practical part contains guide for application development in programming language Python. Process of the application disctribution to the PlanetLab nodes is enclosed as well. Last chapter analyses data collection and maximum speed of data gathering in the created system.
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Experimental network PlanetLab
Grejták, Matej ; Novotný, Vít (referee) ; Komosný, Dan (advisor)
This thesis deals with visualization of PlanetLab network nodes locations defined on a base map. Theoretical part is concerned with basic knowledge of PlanetLab network, its history and general terminology. Furthermore, Google Maps application programming interface is described, which base maps are used in this thesis. Also, other used technologies as JavaScript and Apache web server are covered in the theory, these technologies combined together create the whole structure of dynamic website. Practical part is dedicated to the visualization of nodes represented by map tags. It also explains main sections of a code used on the main page with brief server configuration guide.
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Monitoring of Internet servers
Pospíchal, Ondřej ; Burget, Radim (referee) ; Komosný, Dan (advisor)
This thesis deals with the availability of devices and the availability of remote connection to devices via SSH in the network PlanetLab worldwide. The theoretical part consists of the description of the network PlanetLab, services ping and SSH, program environment, in which was the practical part made, and parallelization of processes, which was used during optimizing the program. The practical part describes the creation, functions and outputs of the application, which continuously tests servers in the network PlanetLab. Analyzing the results of the program it was found that the availability of PlanetLab devices is relatively stable, but unsatisfactory. More than half of the devices of this network do not respond to neither one of mentioned services.
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Geographic location of PlanetLab servers
Iľko, Pavol ; Balej, Jiří (referee) ; Komosný, Dan (advisor)
This thesis deals with accuracy of location of nodes in experimental network PlanetLab. Thesis is devided into a theoretical and a practical part. Theoretical part consists of the description of network PlanetLab, its brief history and current projects. At the same time, Google Maps framework, which is later employed in the practical part, is described. Practical part describes the functionality of the application aimed at validation of location accuracy. Nextly, the application measuring latency of node to SSH is also described, as well as the map which contains PlanetLab nodes located in Europe. Applications and obtained data are attached on CD disk.
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Visualization of PlanetLab nodes location
Polášek, Jakub ; Verner, Lukáš (referee) ; Komosný, Dan (advisor)
This paper deals with a way to display the location of PlanetLab network stations on map. Here I theoretically go through PlanetLab network, theoretical terms from this field and way of functioning. To create the script performing this function is used scripting language JavaScript. In the practical part is shown principle of creating a database nodes, which is then necessary for the script that rendering markers on the map and obtain further information. At the end is described the script written in JavaScript, which is attached to this work as a vizualize.html.
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Analysis of the communication path attributes for IP geolocation
Rajnoha, Martin ; Komosný, Dan (referee) ; Balej, Jiří (advisor)
The aim of this thesis was to study current resources to find location of stations in the network Internet, mainly active methods that are based on delay measurements. Describe origin of the delay and its parts. Next create an application that is able remotely measure the delay between stations and convert this delay to distance. Aplication calculate geographic position of station on based this distances. For measurement was used experimental network PlanetLab.
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