RDFP vs Array NTB Series: 2026 Comparison
RDFP is a free network detection and response tool. Array NTB Series is a commercial network detection and response tool by Array Networks. Compare features, ratings, integrations, and community reviews side by side to find the best network detection and response fit for your security stack.
CST VerdictBased on our analysis of NIST CSF 2.0 coverage, core features, company size fit, deployment model, here is our conclusion:
Security teams running Zeek for network visibility will find immediate value in RDFP for identifying unauthorized or outdated Remote Desktop clients on the wire, something most NDR platforms treat as noise rather than a detection signal. The script requires no additional infrastructure beyond existing Zeek deployments and costs nothing, making it a quick add to detect client-side RDP vulnerabilities that endpoint tools often miss. Skip this if your organization relies on application allowlisting or has already eliminated RDP from your environment; RDFP is tactical network hygiene, not a replacement for access controls.
Mid-market and enterprise security teams that need to extract signal from encrypted traffic without decryption will find Array NTB Series valuable, particularly when you're scaling network TAP deployments across hybrid infrastructure. The platform handles tunnel re-engineering and application-aware packet delivery at scale, covering both DE.CM continuous monitoring and PR.IR resilience functions, and supports both out-of-band and in-line modes so you're not locked into one architecture. Skip this if your team lacks the network operations expertise to manage centralized X-Tunnel orchestration between appliances, or if you need DLP and threat prevention baked in rather than monitoring-first design.
