Ethical Hacking Questions
A network intrusion prevention system (NIPS) is a security solution designed to detect and prevent unauthorized access or malicious activities within a network. It works by monitoring network traffic in real-time, analyzing it for suspicious patterns or behaviors, and taking immediate action to block or mitigate potential threats.
NIPS operates by using a combination of signature-based detection and anomaly-based detection techniques. Signature-based detection involves comparing network traffic against a database of known attack signatures or patterns. If a match is found, the NIPS can take appropriate action to block or alert about the attack.
Anomaly-based detection, on the other hand, focuses on identifying abnormal or unusual network behavior that may indicate an ongoing attack. This technique involves establishing a baseline of normal network activity and then continuously monitoring for deviations from this baseline. When an anomaly is detected, the NIPS can respond by blocking the suspicious traffic or generating an alert for further investigation.
NIPS can also employ additional security measures such as intrusion prevention rules, which define specific actions to be taken when certain types of attacks are detected. These rules can be customized based on the organization's security policies and requirements.
Overall, a NIPS plays a crucial role in safeguarding networks by actively monitoring and preventing unauthorized access, malicious activities, and potential security breaches.