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Intrusion detection system for Mikrotik-based network
Zvařič, Filip ; Frolka, Jakub (referee) ; Krajsa, Ondřej (advisor)
This bachelor's thesis focuses on network attacks and ways to defend against them. It discusses the most common attacks that can be encountered and their impact on computer networks and end user. Finally, it includes steps for implementing a protection system in collaboration with the preventive software Snort and RouterOS operating system. This system's toughness is tested and results are processed.
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Wireless Network
Hrůza, Pavel ; MBA, Zdeněk Podlipný, (referee) ; Koch, Miloš (advisor)
This bachelor’s thesis is focused on wireless network design. In the beginning it describes technologies, which are used for building of modern wireless networks. Practical part of thesis uses these technologies during creation of wireless network for company WALMARK.
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Distributed denial of service filtering based on Mikrotik network devices
Rajj, Jakub ; Martinásek, Zdeněk (referee) ; Gerlich, Tomáš (advisor)
The bachelor thesis is focused on the issue of denial of service attacks. These types of attacks are still up to date, but are currently being used in their distributed form. The theoretical part of the thesis describes the basic mechanisms of attacks and the division of attacks. Also there are described the most famous type of attacks. The theoretical part also includes a description of how to respond to these attacks. Four basick methods are described (prevention, detection, identification and response), as well as intrusion detection and prevention systems (IDPS). The practical part deals with connection of intrusion detection system and router, for detection and filtration on said router.
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Integrated telecommunication environment
Tomeček, Jan ; Škorpil, Vladislav (referee) ; Polívka, Michal (advisor)
The thesis described the proposal for a wireless network problems. There are recorded and compared the characteristics of different wireless technologies. The possibility of voice communication securing is outlined and solutions implemented in the form of ZRTP protocol. The requirements for quality of service are discussed and the solutions to this issue are proposed. Other chapters are devoted to the actual design of specific equipment, including antennas and advance resource. The whole network is practically implemented in the mountainous countryside of eastern Wallachia. In conclusion, this work is network mate in terms of QoS (quality of service) and tested in terms of prioritization of voice communication.
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ISP Network Optimalization
Čech, Ondřej ; Podermański, Tomáš (referee) ; Grégr, Matěj (advisor)
Bachoelor's thesis is focusing on analysis of network local ISP, detecting actual problems and offering a solution for founded problems. There were problems with broadcast-storm, private address space, RSTP protocol settings and DHCP spoofing. The following changes were introduced: OSPF routing, RSTP override, automatic backup, client separation using DHCP. There has been a reduction in broadcast traffic and associated broadcast-storm.
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Design of small-size data networks with advanced services
Vaněk, Jiří ; Kubánková, Anna (referee) ; Novotný, Vít (advisor)
The main objective of this thesis is to get acquainted with the field of designing professional data networks and with typical network service required at these networks. A basic description of network hierarchy and of network elements is part of this thesis. At the same time, individual network services and their usage are defined. At the latter part of the thesis there is a suggestion of design creation steps and of service implementation. Further on, the thesis describes a real design of a laboratory task and it’s practical implementation. Detailed guidelines how to complete a laboratory task are part of this thesis.
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Information system for suport of design of camera systems
Hronek, Pavel ; Holek, Radovan (referee) ; Macho, Tomáš (advisor)
This thesis describes the design and implementation of information system for company Patrokolos s.r.o., dealing with wireless links for CCTV and security systems. Information system enables its users to record data about custommers, entered into the system and assign them a new contract, they may suggest using an integrated graphical interface. It allows to work with information of produced units. Based on the topology of the proposed contract enabled the implemented system to build configuration skript for Mikrotik OS, which then loaded into the unit. The information system is implemented in PHP 5 in cooperation with the MySQL database system 5.1.
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Monitoring of services within active network elements by Mikrotik
Kamenář, Filip ; Slavíček, Karel (referee) ; Grenar, David (advisor)
This bachelor thesis deals with the monitoring of the VPN services on the networking elements Mikrotik. The theoretical part includes the description of RouterOS system, management options and networking devices used. The thesis consists of the description of the VPN services and analysis of PPTP, SSTP, L2TP and OpenVPN protocols, which are implemented in the practical part of this work. The theory also contains the description of monitoring devices included in the RouterOS system. In comparison, external tools are enlisted. Chosen monitoring tools are therefore implemented in the practical part of the thesis and in the monitoring script. The practical part of the bachelor thesis is focused on the establishment of VPN tunnels and its parameter measurement. The VPN clients are to be found in the Czech Republic, Ukraine and Egypt, which establishes the real conditions for network monitoring status. The final part of the work deals with the script, which is created for the automatic-monitoring of VPN service in the accessible network and sends the gathered data to the operators. The aim of the thesis is to illustrate the usage of integrated monitoring tools in the RouterOS system in the network built on the Mikrotik elements. The chosen monitoring service was the service VPN, which is being used for remote access to the local networks from distant part of the world by the corporations but also individuals. Individual monitored parameters are enlisted and compared depending on client geographic location.
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