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DNS firewall and its deployment and integration in cyber center
Doležal, Martin ; Kubánková, Anna (referee) ; Jeřábek, Jan (advisor)
This bachelor's thesis deals with the deployment, integration, and testing of a DNS firewall in a security operations center. It describes the connection of endpoints and remote local area networks to the DNS firewall located in the security operations center. Furthermore, the enforcement of the DNS firewall is described. The main goal of the thesis was to deploy and integrate a DNS firewall inside a security operations center. The first chapter describes the security operations center in general. The second chapter deals with the DNS system. The following chapter describes the security of the DNS system and security of DNS requests, the reader is informed of the term DNS firewall and RPZ and VPN technologies. The fourth chapter describes the DNS firewall deployment process and its integration in a real security operations center. The next chapter describes connection methods of endpoint and remote local area networks to the DNS firewall and its enforcement inside the security operations center. The last chapter deals with performance testing and deployed DNS firewall availability. The outcome of the thesis involves a deployed, integrated, fully-functional, and tested DNS firewall in a real-world security operations center. The Bind software package along with the RPZ technology was used to implement and deploy the DNS firewall. For testing and connection of endpoints, the VPN technology, and the RIPE Atlas network was used.
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DNS firewall and its deployment and integration in cyber center
Doležal, Martin ; Kubánková, Anna (referee) ; Jeřábek, Jan (advisor)
This bachelor's thesis deals with the deployment, integration, and testing of a DNS firewall in a security operations center. It describes the connection of endpoints and remote local area networks to the DNS firewall located in the security operations center. Furthermore, the enforcement of the DNS firewall is described. The main goal of the thesis was to deploy and integrate a DNS firewall inside a security operations center. The first chapter describes the security operations center in general. The second chapter deals with the DNS system. The following chapter describes the security of the DNS system and security of DNS requests, the reader is informed of the term DNS firewall and RPZ and VPN technologies. The fourth chapter describes the DNS firewall deployment process and its integration in a real security operations center. The next chapter describes connection methods of endpoint and remote local area networks to the DNS firewall and its enforcement inside the security operations center. The last chapter deals with performance testing and deployed DNS firewall availability. The outcome of the thesis involves a deployed, integrated, fully-functional, and tested DNS firewall in a real-world security operations center. The Bind software package along with the RPZ technology was used to implement and deploy the DNS firewall. For testing and connection of endpoints, the VPN technology, and the RIPE Atlas network was used.
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