Which engine is capable of real-time intrusion detection, inline intrusion prevention, and network security monitoring?

The Suricata engine is a highly capable and versatile tool in network security that supports real-time intrusion detection, inline intrusion prevention, and comprehensive network security monitoring. It is designed to analyze network traffic at high speeds and can operate in various modes that allow it to not only detect but also prevent intrusion attempts by processing network packets either passively or actively.

Suricata's architecture enables it to handle multi-threading, which enhances its performance and allows it to manage large volumes of traffic, making it suitable for modern network environments. It can also utilize signature-based detection similar to other intrusion detection systems but can incorporate additional features such as file extraction and payload inspection, enabling a broader scope for analyzing and securing network traffic.

The other options, while they may have specific capabilities in network security, do not encompass the comprehensive feature set that Suricata offers. For example, Snort is a popular intrusion detection system but lacks the inline protection capabilities featured prominently in Suricata. Gophish focuses on phishing simulations and social engineering tests rather than intrusion detection and prevention, and Ntopng primarily serves as a network traffic monitoring and analysis tool without the specific intrusion prevention functionalities. Thus, Suricata stands out as the engine best suited for real-time intrusion detection,