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Secure, reliable and adaptive network based on Cisco devices
Lefler, Přemysl ; Komosný, Dan (referee) ; Kubánková, Anna (advisor)
This bachelor thesis deals with design of secure, reliable and adaptive network using Cisco network devices. Thesis includes design of a network with description of each individual technology, that were used in the design to meet requirements for safety, reliability and adaptivity. The last chapter describes frequently occuring network attacks along with a description of their execution followed by implementation of defense against them.
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Universal Reservation System in Cloud
Bulín, Martin ; Kouřil, Jan (referee) ; Škoda, Petr (advisor)
This bachelor thesis describes design and implementation of universal reservation system in cloud. Main part of this thesis includes review of cloud providers and existing reservation systems. Furthermore this academic paper deals with proposal and implementation of the reservation system. This system can show us the benefit of the cloud. In the conclusion I deal with scalability of cloud and testing created system in Amazon Web Services cloud.
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Game Portal in Cloud
Pečínka, Zdeněk ; Otrusina, Lubomír (referee) ; Škoda, Petr (advisor)
This thesis deals with the development of the gaming portal in Cloud designed for selected PaaS provider. Informs about the possibilities offered by cloud computing. Summarizes the advantages and disadvantages of PaaS providers. It pursues the design and the implementation of the application, focusing on its scalability and modularity. The result is the gaming portal providing games Tanks and Ships, which you can play against other users or against a computer controlled opponent. The solution contains the evaluation of the scalability of the critical components, based on the results of the stress tests.
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High-Performance Platform for Malware Research
Plaskoň, Pavol ; Bartík, Vladimír (referee) ; Kolář, Dušan (advisor)
Anti-malware companies analyze large number of files every day. In order to speed up their analysis, many automatized tools were implemented. Detection definitions that detect malicious software are often generated automatically. Information about currently spreading malware is scattered across several tools and they are sometimes too generic. This work proposes a new tool that will aggregate, prioritize, and evaluate all the available information. Due to large amount of incoming data, high performance and scalability of the system is necessary. Files, detection definitions, and other objects will be tagged using the given information directly or inferred. Collected information will be accessible via interface for further analysis and statistics. Everything was implemented, tested and put into production.
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Advanced Static Analysis of Atomicity in Concurrent Programs through Facebook Infer
Harmim, Dominik ; Rogalewicz, Adam (referee) ; Vojnar, Tomáš (advisor)
Nástroj Atomer je statický analyzátor založený na myšlence, že pokud jsou některé sekvence funkcí vícevláknového programu prováděny v některých bězích pod zámky, je pravděpodobně zamýšleno, že mají být vždy provedeny atomicky. Analyzátor Atomer se tudíž snaží takové sekvence hledat a poté zjišťovat, pro které z nich může být v některých jiných bězích programu porušena atomicita. Autor této diplomové práce ve své bakalářské práci navrhl a implementoval první verzi nástroje Atomer jako zásuvný modul aplikačního rámce Facebook Infer. V této diplomové práci je navržena nová a výrazně vylepšená verze analyzátoru Atomer. Cílem vylepšení je zvýšení jak škálovatelnosti, tak přesnosti. Kromě toho byla přidána podpora pro několik původně nepodporovaných programovacích vlastností (včetně např. možnosti analyzovat programy napsané v jazycích C++ a Java nebo podpory pro reentrantní zámky nebo stráže zámků, tzv. "lock guards"). Prostřednictvím řady experimentů (včetně experimentů s reálnými programy a reálnými chybami) se ukázalo, že nová verze nástroje Atomer je skutečně mnohem obecnější, přesnější a lépe škáluje.
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Available Solutions for Server Clustering
Bílek, Václav ; Čejka, Rudolf (referee) ; Kašpárek, Tomáš (advisor)
The goal of this master thesis is to analyze Open Source resources for loadbalancing and high availability, with aim on areas of its typical usage. These areas are particularly solutions of network infrastructure (routers, loadbalancers), generally network and internet services and parallel filesystems. Next part of this thesis is analysis of design, implementation and plans of subsequent advancement of an fast growing Internet project. The effect of this growth is necessity of solving scalability on all levels. The last part is performance analysis of individual loadbalancing methods in the Linux Virtual Server project.
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Mobile System for Customer Feedback Collection
Kadlubiec, Jakub ; Szőke, Igor (referee) ; Herout, Adam (advisor)
Práce se zabývá popisem tvorby mobilního systému pro monitoring zákaznické spokojenosti a sběr zpětné vazby od návštěvníků v restauracích s názvem Huerate. Komplexně jsou popsané všechny fáze vývoje systému. První část práce se zabývá analýzou existujících řešení a stavem na trhu. Následně jsou na základně komunikace s majiteli restaurací sestaveny požadavky na systém. Nakonec se práce věnuje samotnému návrhu systému, jeho implementaci a nasazení v restauracích. Systém Huerate běží jako webová aplikace a je dostupný na adrese http://huerate.cz.
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Influence of Network Infrastructure on Distributed Password Cracking
Eisner, Michal ; Zobal, Lukáš (referee) ; Hranický, Radek (advisor)
Password cracking is a process used to obtain the cracking key through which we get access to encrypted data. This process normally works on the principle of the repeated try of attempts and their verification by making calculations of cryptographic algorithms. The difficulty of algorithms affects the time spent on solving of the calculations. In spite of various acceleration methods, it is often necessary to distribute the given problem among several nodes which are interconnected via the local network or the internet. The aim of this thesis is to analyze the influence of network infrastructure on the speed, the scalability, and the utilization during different attacks on cryptographical hashes. For these purposes, there was created an automatized experimental environment, which consists of distinctive topologies, scripts, and sets of testing tasks. Based on the results of the analysis, which were obtained by the usage of tools Fitcrack and Hashtopolis it was possible to observe this influence.
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Project of communication network infrastructure for office building
Kajan, Tomáš ; Sedlák, Petr (referee) ; Novotný, Vít (advisor)
The bachelor's thesis deals with the design of a communication infrastructure of a multi-story office building. The work deals with a design of a metallic horizontal wires, as well as optical vertical wires between the floors of the building. One of the main factors, which the proposal was based on, was the possibility of renting the building to several tenants. As a part of the project is also partially designed wireless network and the whole work is concluded by an economic evaluation, witch contains active elements, passive elements and approximate price of passive elements installation.
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