Which open source NIDS requires a subscription to obtain up-to-date rulesets, with community-authored rules available to non-subscribers?

Which open source NIDS requires a subscription to obtain up-to-date rulesets, with community-authored rules available to non-subscribers?

• A. Intrusion detection system
• B. Snort
• C. IPS
• D. NGFW

Answer: (B)

Snort is the open-source network IDS that uses rule feeds to detect threats. To get the latest detections, Snort offers an official rule set that requires a subscription. At the same time, there is a community-driven rule set maintained by contributors that non-subscribers can use. This combination—up-to-date rules available via a subscription, plus community-authored rules freely accessible to non-subscribers—fits the description. The other options describe generic terms or different product types (a generic IDS, IPS, or NGFW) and don’t capture this rule-update model.

Snort is the open-source network IDS that uses rule feeds to detect threats. To get the latest detections, Snort offers an official rule set that requires a subscription. At the same time, there is a community-driven rule set maintained by contributors that non-subscribers can use. This combination—up-to-date rules available via a subscription, plus community-authored rules freely accessible to non-subscribers—fits the description. The other options describe generic terms or different product types (a generic IDS, IPS, or NGFW) and don’t capture this rule-update model.