{
  "port": 1183,
  "protocol": "tcp",
  "service": "llsurfup-http",
  "oneLiner": "Registered to \"LL Surfup HTTP\" and effectively never seen in the wild.",
  "whatItIs": "IANA lists 1183 for both TCP and UDP under the service name llsurfup-http, described only as \"LL Surfup HTTP\", with no assignee recorded and no public protocol specification. There is no maintained product, RFC, or open-source implementation behind the name that can be pointed at today. If 1183 is listening on a host you administer, the registration tells you nothing useful — identify the process locally rather than trusting the registry name.",
  "exposure": {
    "verdict": "careful",
    "note": "An unexpected listener here is an unidentified service, not a known protocol; find the owning process before deciding anything about exposure."
  },
  "checkCommand": "sudo lsof -nP -iTCP:1183 -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"
    }
  ]
}