{
  "port": 6711,
  "protocol": "tcp",
  "service": "Unassigned",
  "oneLiner": "Unassigned at IANA; a port that lives mostly in old intrusion-detection signature lists.",
  "whatItIs": "IANA lists 6707-6713 as Unassigned, and nmap's service database records no name for 6711. It has no registered protocol and no current product default. Its reputation comes from late-1990s Windows backdoor lore, where ports just above 6700 appear in old firewall and IDS rule sets, but there is no authoritative registration or vendor documentation to point at — so treat any listener here as unidentified software rather than as a confirmed anything.",
  "exposure": {
    "verdict": "careful",
    "note": "Nothing legitimate is expected here. An open 6711 on a Windows host is worth running down to a named process."
  },
  "checkCommand": "sudo lsof -nP -iTCP:6711 -sTCP:LISTEN",
  "links": [
    {
      "title": "IANA Service Name and Transport Protocol Port Number Registry — 6711",
      "url": "https://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.xhtml?search=6711",
      "kind": "iana"
    },
    {
      "title": "nmap-services (Nmap's port/service frequency database)",
      "url": "https://github.com/nmap/nmap/blob/master/nmap-services",
      "kind": "github"
    }
  ]
}