{
  "port": 5960,
  "protocol": "tcp",
  "service": "Unassigned / VNC display :60",
  "oneLiner": "Unassigned; VNC display :60 by convention, nothing else standard.",
  "whatItIs": "IANA leaves 5960 unassigned as part of the 5915-5962 block. RFB display numbering makes it :60, which is deep into the range and only reached by hosts running many simultaneous VNC sessions. Beyond that there is no registered service and no well-documented squatter.",
  "exposure": {
    "verdict": "never",
    "note": "Unregistered plus in the VNC block means you cannot infer safety from the number — keep it internal and check the owning process."
  },
  "checkCommand": "sudo lsof -nP -iTCP:5960 -sTCP:LISTEN",
  "links": [
    {
      "title": "IANA Service Name and Transport Protocol Port Number Registry",
      "url": "https://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.xhtml",
      "kind": "iana"
    },
    {
      "title": "RFC 6143 — The Remote Framebuffer Protocol",
      "url": "https://datatracker.ietf.org/doc/html/rfc6143",
      "kind": "spec"
    }
  ]
}