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Installation and configuration of Octave computation cluster
Mikulka, Zdeněk ; Hasmanda, Martin (referee) ; Sysel, Petr (advisor)
This diploma thesis contains detailed design of high-performance cluster, primarely focused for parallel computing in Octave application. Each of component of this cluster is described along with instructions for installation and configuration. Cluster is based on GNU/Linux operating system and Message Parsing Interface. Design alllows implementation of this cluster in computers of schoolroom with active lessons.
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Installation and configuration of Octave computation cluster
Mikulka, Zdeněk ; Hasmanda, Martin (referee) ; Sysel, Petr (advisor)
This diploma thesis contains detailed design of high-performance cluster, primarely focused for parallel computing in Octave application. Each of component of this cluster is described along with instructions for installation and configuration. Cluster is based on GNU/Linux operating system and Message Parsing Interface. Design alllows implementation of this cluster in computers of schoolroom with active lessons.
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Antispam filters
František, Jiří ; Fojtová, Lucie (referee) ; Pust, Radim (advisor)
The thesis is involves the desing antispam solution for operating system GNU/Linux. At the first is going through theory of transport, receive mail message and problematic of spam. The content of thesis is realize mail server with mail transfer agent Postfix. Amavis was used as antispam solution, which make an interface between Postfix and content checkers. This was created by SpamAssassin and ClavAV. Main goal was created aplication for setting of antispam filters. The result is possibility of setting a creating filters with black and white lists. Messages in quarantine ca
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Security of Linux OS
Polách, Milan ; Vychodil, Petr (referee) ; Vymazal, Michal (advisor)
This thesis is focused on the possibility of better networking security operating system GNU/Linux with an appropriate set of rules Netfilter. There was established a program to allow easy configuration of rules for IP Address versions 4 and 6. This program not only allows to set individual rules, but also interfere with the newly required service and decide, how it will be further worked with. The first is the theoretical part describes the network communication with the model TCP/IP, the following is the introduction of Netfilter and outlining the local security. The practical part describes the various technologies and methods used for programming. The result of this work is easy to use program to set firewall rules for IP Address versions 6 with the possibility of deciding on the new established network traffic. The program is designed for new users of the operating system, who want to better secure their computer without the knowledge of Netfilter.
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Automated system for installing and configuring GNU/Linux virtual hosts
Horák, Daniel ; Polívka, Michal (referee) ; Pelka, Tomáš (advisor)
This work deals with possibilities of administration of virtual machines (mainly from the developer's point of view) and available methods for automatic installation of GNU/Linux distributions. First part contains the information about virtualisation technologies and possibilities to configure them with a libvirt library. The definition and specification of each part of virtualisation environment (virtual machines, disks, networks) using XML is described. Further more the possibilities of automatic installation of Linux distributions based on RedHat and Debian considering the virtualisation environment are discussed. The possibility of copying an existing disk with installed system is also mentioned. In a practical part a server application for control and management of virtual machines including automatic installation of operating system is proposed and realised.
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Embedded system for date collection
Varga, Kamil ; Štohl, Radek (referee) ; Macho, Tomáš (advisor)
This master's thesis is describing problems of embedded systems and their development. Furthermore, the operating system GNU/Linux and it's cross-compiling is described. Hardware problems are analyzed too. Concrete solution is system which is able to boot from the USB disc and it is based on OpenWrt distribution running on Edimax BR-6104KP router. The whole solution is described the way which can lead to any general embedded system.
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SELinux application for Linux server security
Jirka, Michal ; Pelka, Tomáš (referee) ; Šimek, Milan (advisor)
This work is engaged in access control mechanism in GNU/Linux operating systems. At first discretionary and mandatory access control are compared and examine basic technologies based on mandatory access control. More closely is focused on project SELinux, whose generation of new rules is explained. Within the thesis is made application for logging evaluation and for writing new Type Enforcement rules.
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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.
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Hardware realization of hospital information system
Friedl, Jan ; Roleček, Jiří (referee) ; Fedra, Petr (advisor)
The presented work concerns problems of more effective using hardware and also free software. The first part of my work presents generally free GNU/Linux distributions and this part is concentrated on two distributions. The first is Red Hat Enterprise Linux which is installed in the server of the hospital information system Clinicom. The second is live distribution Slax that is used for testing of terminal connection to the hospital information system Clinicom. The second part of my work is generally concentrated on the hospital information systems and there is presented the firm SMS solution at the end. It is the hospital information system Clinicom. The next part is generally concentrated on the workload server monitoring. It monitors both userlogins and allocated memory size. Then there are discused problems of solution of unthought-of events, for example blackout, and the one solution is described there. The last part is concentrated on implementation of the security connection to the hospital information system Clinicom and it presents live distribution Slax as distribution for thin client.
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Suitability analysis of use free/open source software for legal person
Tokan, Ladislav ; Lorenc, Miroslav (advisor) ; Švecová, Lenka (referee)
My Bachelor thesis deals with use of free/open source software as alternative to traditional proprietary software. In theoretical part of thesis, I'm describing kinds of software, forms of its spreading and types of licenses, we can meet. In second part of this section of thesis, I introduce reader to some basic concepts of open source operating systems with the most common applications. In practical part of thesis I devote to particular model of application open source software in public administration. The model is situated in municipal authority of Hořice v Podkrkonoší. As criteria for consideration about successfulness in implementation of alternative variant of software I used total costs of ownership against costs spent to the proprietary variant. In the end of my thesis I evaluate results of application part and general relationship of information technology market with open source software.
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