This tutorial introduces the Montimage Monitoring Tool (MMT), a modular framework for network traffic monitoring, performance analysis, and cybersecurity threat detection. It presents the MMT architecture and its main components, including MMT-Probe, MMT-DPI, MMT-Security, MMT-Behaviour, and MMT-Operator, explaining their roles in network traffic capture, protocol classification, metadata extraction, and event correlation. The tutorial also explores Deep Packet Inspection (DPI) techniques and demonstrates how security properties, attack signatures, and temporal event relationships can be used to detect abnormal network behavior. Finally, it discusses advanced monitoring capabilities, including quality-of-service analysis, traffic visualization, and distributed monitoring.