Please use this identifier to cite or link to this item: http://hdl.handle.net/10609/150615
Title: Reducción del riesgo de exposición e infección mediante la implementación de un Firewall DNS
Author: Zambrano Burgos, Juan
Tutor: Guaita Perez, Borja
Others: Garcia-Font, Victor  
Abstract: Cybersecurity is a crucial aspect in managing computer networks, especially for small and medium-sized enterprises (SMEs). Preventing threats and early detection of infected machines are essential to safeguard the network integrity and protect the organization's digital assets. In this regard, the DNS protocol emerges as a key tool due to its omnipresence in any web browsing activity. By leveraging the capabilities of the DNS protocol, companies can strengthen their cyber defenses by preventing access to malicious sites and quickly detecting potential infections on the network. The main objective of this thesis project is to design and develop an effective tool aimed at reducing the risk of exposure and infection of machines in the environment of small and medium-sized enterprises (SMEs). This tool will focus on two fundamental aspects of cybersecurity: preventing access to malicious sites and early detection of infections on the network. Its implementation will enable SMEs to strengthen their defenses against cyber threats, thus ensuring the integrity and continuity of their business operations. To achieve this, research and analysis have been conducted on enterprise tools with similar characteristics, followed by the design and development of a tool that can be freely used in SMEs. Subsequently, a tool based on the DNS protocol on an Ubuntu server has been developed, allowing hosting a DNS service with a web management interface. This tool is fed with feeds of Indicators of Compromise (IoCs) of malicious IP addresses to detect and block threats proactively. Ultimately, the proposed tool provides an accessible and effective strategy to strengthen the security of SME networks, protecting their digital assets and ensuring the continuity of their operations in an increasingly hostile environment.
Keywords: DNS
Document type: info:eu-repo/semantics/masterThesis
Issue Date: 28-Jul-2024
Publication license: http://creativecommons.org/licenses/by-nc-nd/3.0/es/  
Appears in Collections:Trabajos finales de carrera, trabajos de investigación, etc.

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