{
  "port": 5815,
  "protocol": "tcp",
  "service": "Unassigned",
  "oneLiner": "Unassigned at IANA, immediately above the icmpd and Support Automation registrations, with nothing standard on it.",
  "whatItIs": "The registry assigns 5813 to icmpd and 5814 to spt-automation, and then stops — 5815 has no entry and no widely deployed default. Nothing about the number implies a protocol, so an open 5815 tells you only that some application on the host chose it. VNC's 5800+display rule would make it display :15, which is unusual enough not to be a safe assumption.",
  "exposure": {
    "verdict": "careful",
    "note": "Unregistered and therefore unidentified from the port alone. Establish what is listening before deciding on exposure."
  },
  "checkCommand": "sudo lsof -nP -iTCP:5815 -sTCP:LISTEN",
  "links": [
    {
      "title": "IANA port registry — 5815 (unassigned)",
      "url": "https://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.xhtml?search=5815",
      "kind": "iana"
    }
  ]
}