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Intrusion Detection and Prevention System

An Intrusion Detection System (IDS) is a security tool used to monitor and analyze network traffic or system activities for signs of suspicious or malicious behavior. An Intrusion Prevention System (IPS) is a network security solution that not only detects threats like an IDS but also takes proactive actions to prevent them. Key Features: • Detection-only: It detects threats but does not block them. • Alerts generated: When a potential attack is detected, the IDS sends alerts to administrators. • Monitoring mode: Works passively by analyzing traffic and logs. Types of IDS: • Network-based IDS (NIDS): Monitors network traffic. • Host-based IDS (HIDS): Monitors activities on individual devices or servers. Example: If someone tries to perform a port scan or SQL injection, the IDS will detect the unusual pattern and alert the security team.