Análise de viabilidade e desempenho do Raspberry Pi como firewall de baixo custo para redes de pequeno porte

Abstract

The increasing reliance on computerized systems by businesses and residential networks makes network security an indispensable component, yet advanced solutions are often inaccessible to small organizations with limited budgets. This work evaluated the technical feasibility of using a Raspberry Pi as a low-cost firewall for small networks. The study examined whether the device could operate as a functional and secure alternative to traditional commercial firewalls. Controlled experiments were carried out to assess performance, security, resource usage, and stability. The results demonstrated that the Raspberry Pi can serve as a viable low-cost firewall, delivering stable performance in optimized scenarios and consuming significantly less power than conventional appliances. The work contributes to the broader adoption of accessible cybersecurity solutions by providing practical insights for environments with restricted resources.