Estudo de caso: implementação de controle de acesso, gerenciamento de logs e segmentação de redes no Departamento de Computação da UFC

Abstract

This final papper addresses the implementation of a captive portal system, log management and network segmentation in the Computing Department of the Federal University of Ceará. The growing need for security and internet access control in academic institutions motivated the choice of this topic. The captive portal system, configured through the pfSense tool, forces users to authenticate themselves before accessing the network, ensuring greater control over available resources and protecting the data of the institution and its users. The syslog server, using Graylog, centralizes and manages access logs, providing a detailed and comprehensive view of network activities, facilitating traceability and auditing of events. Furthermore, network segmentation, implemented through VLANs, increases security by isolating different types of traffic and reducing the risk of attacks. This combination of solutions not only increases security and improves user experience, but also facilitates monitoring and traceability of network traffic. Through detailed access recording, it is possible to identify and hold responsible users who access inappropriate content or attempt to carry out illegal activities within the institutional domain. In this way, the implementation described in this study contributes significantly to the detection and prevention of security incidents, in addition to providing valuable data for making strategic decisions in the management of the university network. This study demonstrates how these technologies can be effectively applied in academic environments, reinforcing the security and operational efficiency of university networks.