Study and installation of an intrusion detection system

The present study focuses on the implementation of an intrusion detection system in the local network of a DGDA/Tshopo company. The main problem addressed in this work is the security of DGDA/Tshopo's local network. To solve this problem, we used the following methods: historical, structural-functional, UP and PERT, which enabled us to implement the security solution in the DGDA/TSHOPO local network.Given that the local network of the Direction Générale des Douanes et Accises/Tshopo benefits from Internet service, which constitutes a weak link in its security, we implemented an intrusion detection system, using pfsense and Snort technologies. This system is the appropriate mechanism for monitoring and analyzing all activity on the DGDA/Tshopo local network, in order to detect unusual traffic.