Intrusion Detection Systems (IDS): The importance of network and host-based monitoring in cyber security

IDS

Intrusion Detection System. This is a software application or a device that monitors your networks for any signs of malicious activity or security threats. They can detect bad patterns and use machine learning to prevent an attack on your cyber systems.

IDS stands for Intrusion Detection System. It is a security technology that monitors network traffic for signs of unauthorized access, malicious activities or policy violations. The purpose of IDS is to detect and respond to cyber attacks in real time, and to prevent or minimize damage to the system.

There are two types of IDS: network-based and host-based. Network-based IDS monitors network traffic for malicious activities, such as packet sniffing, session hijacking, and port scanning. It can be deployed at various locations within the network, such as at the perimeter, the core, or the endpoint. Host-based IDS, on the other hand, monitors the activity of a particular computer or server, looking for signs of unauthorized access, malware, or other suspicious events.

IDS uses a variety of techniques to detect intrusions, such as signature-based detection, anomaly-based detection, and behavioral analysis. Signature-based detection involves comparing the network traffic against a database of known attack signatures or patterns. Anomaly-based detection involves setting a baseline of normal network behavior and looking for deviations from that baseline. Behavioral analysis involves identifying and monitoring the behavior of users, systems, and applications to detect anomalies or abnormal activity.

Once an intrusion is detected, IDS can take various actions, such as alerting security personnel, blocking traffic, or sending an automated response to mitigate the attack. IDS can also generate reports and logs that provide detailed information about the intrusion, such as the source IP address, the type of attack, and the damage caused.

Overall, IDS plays a critical role in protecting networks from cyber threats and ensuring the security of information and assets.

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