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Design and implementation of custom mashup application
Fenyk, Tomáš ; Smutný, Zdeněk (advisor) ; Vadinský, Ondřej (referee)
Bachelor thesis is focused on a development process of web application that should help users to plan one-day bicycle trips on their own and also solves questions and problems that appeared during the development. Data used in this application are gathered from various providers (mainly providing geolocation services) which ranks this application to the category of mashup applications. Thesis is divided into theoretical and practical part. In the theoretical part basic principles crucial for understanding to functions of mashup (API, REST, JSON format, AJAX and other) are described. The following practical part contains thematically focused chapters that describe the process of creating above mentioned application along with a selection of practical solutions, which provided appropriate support for the application.
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Security policyes of SELinux for selected application in Gnome environment
Sládek, Michael ; Palovský, Radomír (advisor) ; Vadinský, Ondřej (referee)
The goal of this work is creation of SELinux security policy for selected application. To achieve this goal is this work divided to several parts. The first part is presentation of basic security principles, on which SELinux is based and then presentation of structure of the SELinux itself. The second part is analysis of the degree of support of SELinux in some selected, user favorite, distributions of Linux. In the last part is, on the specific application, presented process of creation of SELinux security policy. Specifically, remaking of document browser Evince into secure browser of untrusted documents. The contribution of this work is to create a working policy for application Evince for GNOME user environment and mapping the extent of SELinux support in selected Linux distributions.
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Backup of servers
Horák, Jan ; Pavlíček, Luboš (advisor) ; Vadinský, Ondřej (referee)
The Bachelor work deals with tools for backing up servers, these software tools are Bacula, Amanda, BackupPC and Windows Server Backup. In introduction author overview concepts of backup and outlines possible backup strategy. The main part of work offers scenarios for which each backup instrument is appropriate. All the tools are described in details in terms of functionality and in terms of working with them during backup and restore files or folders. At the end of work is each tool compare with others in terms of the criteria to choose the best selected program for backup server.
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High-availability solutions for network filesystems in Linux
Kravec, Martin ; Pavlíček, Luboš (advisor) ; Vadinský, Ondřej (referee)
The goal of this paper is to inform readers about high availability problematics and provide basic overview of free technologies you can use to achieve high availability. I focus mainly on solution of problems caused by hardware failures. Document can by used to gain basic knowledge needed for configuration of your own solution. In practical part I will try to realize high available cluster using free technologies and compare performance of different filesystems on this platform. Document will provide instructions for choosing and testing appropriate filesystem for specific configuration that can be used in production environment.
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SELinux security policies for chosen applications of KDE desktop environment
Vadinský, Ondřej ; Palovský, Radomír (advisor) ; Šmejkal, Ivo (referee)
This thesis deals with technologies of SELinux security policy writing. Furthermore the thesis analyzes userspace of GNU/Linux operating system with special focus on KDE desktop environment. On the basis of this analysis a bottom-up methodics to create a security policy is devised. Acquired knowledge is then used in practice when realizing the main goal of the thesis, which is to create example security policies for chosen KDE applications. When describing technologies of security policy writing the thesis draws information from available sources of information. Input for userspace analysis are available electronic sources of information and author's own experience with analyzed applications. This is used with common philosophic principles to devise bottom-up methodics of policy writting. Following act of policy building draws from defined security goals, acquired knowledge, created methodics and defined usecases. Theoretical contribution of the thesis is devised methodics of userspace policy building. Main practical contribution are then created example SELinux policies for chosen KDE applications. The structure of the thesis follows its goals. For them three parts are created: background research of available resources, author's own theoretical contemplations and practical output of the thesis. Those parts are then devided into sections according to needs of each topic.
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SELinux
Vadinský, Ondřej ; Palovský, Radomír (advisor) ; Šmejkal, Ivo (referee)
The goal of this thesis is to describe principles of SELinux technology. Thesis examines and comments level of support of SELinux in some Linux distributions. This is than used for building new security policy for chosen program. To describe basic principles of SELinux the thesis draws information out of many available sources. To find out about how much SELinux is supported in chosen distributions, those distributions are installed and tested. After that level of user-friendliness is valued. Policy building is done after situation analysis and specification of security goals. Contribution of the thesis is in the first place a creation of security policy for type situation. In addition to this thesis contains a study of level of SELinux support in chosen distributions based on practical experience and testing. Thesis also shows how to install and set up SELinux. Structure of thesis respects its goal. For each of them there is one part of thesis, which is than structured according given goal.
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