Intrusion Detection & Prevention (IDS/IPS)

Network monitoring systems detecting and blocking malicious traffic through signature and anomaly analysis.

Core Principles & Analysis

• Snort, released by Martin Roesch in 1998, became the most widely deployed open-source IDS engine.
• Signature-based detection matches traffic against databases of known attack patterns.
• Inline IPS deployments drop malicious packets before they reach the target host.