Musiimire Emilly2025-06-272025-06-272025-05-14https://hdl.handle.net/20.500.12311/2798This report presents Phalanx, a web based Intrusion Prevention System (IPS) developed to provide real-time detection and prevention of network intrusions. Phalanx IPS is a highly intelligent, web-based security system developed to reinforce network protection through automated identification and blocking of cyber attacks. Phalanx IPS is for the Information Systems (UCU UIS) at Uganda Christian University to counteract the inadequacies of traditional firewall and open-source systems that present complicated setups and manual controls. The framework combines real-time packet analysis, Snort-based signature and anomaly detection, and automated response mechanisms via ip_tables. It features a user-friendly web console for monitoring, managing rules, reporting, and prevention. Phalanx facilitates security efficacy with minimal human intervention and responding in real-time to the threat. Utilizing a structured SDLC process, the solution has been tested and deployed in a production network environment. It is a scalable and proactive solution to the security problems of the present day. This report details the design, development, and deployment of the system, showcasing how Phalanx addresses the need for advanced, web based intrusion prevention solutions in modern network security.enThesis