{
  "port": 301,
  "protocol": "tcp",
  "service": "Unassigned",
  "oneLiner": "No IANA assignment and no established convention — an open 301 identifies nothing.",
  "whatItIs": "The registry has no entry for 301 on TCP or UDP; the surrounding 301–307 range is likewise blank. Nmap carries it as \"unknown\" with a low but non-zero open rate, which is characteristic of a port used by a handful of appliances or in-house services rather than any standard protocol. There is no banner, no RFC, and no vendor default worth naming here. Fingerprint the listener; the number will not tell you.",
  "exposure": {
    "verdict": "careful",
    "note": "Unknown service on a privileged port — determine what it is and whether it authenticates before it goes anywhere near a public interface."
  },
  "checkCommand": "nmap -sV -p 301 TARGET",
  "links": [
    {
      "title": "IANA Service Name and Transport Protocol Port Number Registry — 301",
      "url": "https://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.xhtml?search=301",
      "kind": "iana"
    }
  ]
}