Final answer:
IDS sensors can be deployed in modes like Network-based IDS (NIDS), Host-based IDS (HIDS), Wireless IDS (WIDS), and use either anomaly-based or signature-based detection techniques to monitor and analyze network traffic for potential threats.
Step-by-step explanation:
Types of IDS Sensor Deployment Modes
Intrusion Detection Systems (IDS) can be deployed in various modes to monitor and analyze network traffic, looking for suspicious activities and potential threats. The most common modes of IDS sensor deployment are:
Network-based IDS (NIDS): Monitors network traffic for the entire network or for specific segments.
Host-based IDS (HIDS): Installed on particular host systems (such as servers, workstations) to monitor network traffic that arrives at and leaves from that specific host.
Wireless IDS (WIDS): Designed to monitor wireless network traffic and to detect unauthorized wireless connections including rogue access points.
Anomaly-based detection: Establishes a baseline of normal network behavior, then identifies deviations from that baseline.
Signature-based detection: Relies on a database of known threat signatures or patterns to detect malicious activities.
These modes enable network administrators to safeguard their systems from various types of attacks and ensure the security of their network infrastructure.