{
  "port": 722,
  "protocol": "tcp",
  "service": "Unassigned",
  "oneLiner": "Unregistered at IANA; occasionally chosen by hand as an alternate SSH port, nothing more.",
  "whatItIs": "IANA has no assignment for 722, and Nmap records it as \"unknown\". Because it sits just above the assigned block around 720 it sometimes gets picked as a hand-configured port for SSH or another admin service by people trying to move off 22. That is a local convention, not a standard, so there is no protocol you can assume from the number alone. Fingerprint whatever answers before treating it as anything in particular.",
  "exposure": {
    "verdict": "careful",
    "note": "Moving a service to an unregistered port hides it from casual scans but not from a service scan; judge the exposure by the service you find, not the number."
  },
  "checkCommand": "nmap -sV -p 722 TARGET",
  "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"
    }
  ]
}