IDS

An IDS is a network security tool that is designed to monitor network or other technological system activities for potential malicious activities and/or policy violations. They can identify unauthorized access, misuse of equipment or software, as well as potential security threats from anywhere within a network environment. The primary function of an IDS is to observe and report security incidents such as unauthorized access and policy violations, as mentioned previously. An active IDS also is expected to find and assist analysts with defense against malware or any other objects, real or virtual, along with their activities. In summary, they are meant to address anything that might pose a threat to the proper and desired function of the network system.

The key functions and abilities of an IDS are as follows:

• Traffic monitoring
• Anomaly detection
• Signature-based detection
• Real-time alerts
• Log and event analysis
• Network and host-based detection
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