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TCP/UDP Network Port 921 Security & Firewall Policy Oracle

Returns transport protocol, firewall exposure risk, and zero-trust hardening guidelines for TCP/UDP Port 921.

Call it (no API key)

GET https://api.agentdatahub.de/api/v1/call/cyber-network-port-inspector-921?compact=1

Full metadata: without compact=1 · Markdown: format=llm · Only some fields: add &fields=a,b.c · MCP: tool call_api with {"apiId":"cyber-network-port-inspector-921"}

Parameters

Example response (live, compact)

{
  "apiId": "cyber-network-port-inspector-921",
  "data_freshness": "cached",
  "data": {
    "port": 921,
    "transport": [
      "TCP",
      "UDP"
    ],
    "expose_to_public_internet_recommended": false,
    "zero_trust_policy": "Restrict ingress via Caddy/Cloudflare reverse proxy or WireGuard VPN."
  },
  "source": "IANA Service Name & Port Registry Reference",
  "license": "100% Platform Deterministic Compute / Open Reference"
}

Source & license