What is a feature of an intrusion detection system in relation to host activity?

An intrusion detection system (IDS) is designed to monitor and analyze the activities on a host to detect any unauthorized access or anomalies. One of its key features is the ability to establish a baseline of normal behavior for files and critical system locations. This involves understanding what typical file behaviors and configurations look like within a system. By comparing current activity against this established baseline, the IDS can identify deviations that may indicate a potential security threat, such as unauthorized modifications to files or changes to critical system areas.

This feature is essential for enhancing security because it allows for proactive detection of potential intrusions, ensuring that any suspicious activity can be addressed quickly. Establishing a baseline is a common method utilized in intrusion detection processes, emphasizing its importance in maintaining system integrity and monitoring host activity effectively.