网络入侵检测系统（NIDS）

1

SNORT

Snort- Network Intrusion Detection & Prevention System

https://www.snort.org/

2

Suricata| Open Source IDS / IPS / NSM engine

Suricata is a free and open source, mature, fast and robust network threat detection engine.

The Suricata engine is capable of real time intrusion detection

(IDS), inline intrusion prevention (IPS), network security monitoring

(NSM) and offline pcap processing.

https://suricata-ids.org/