{
  "port": 125,
  "protocol": "tcp",
  "service": "Locus PC-Interface Net Map Server",
  "oneLiner": "Registered to the Locus PC-Interface net map server; a dead 1980s product.",
  "whatItIs": "IANA lists port 125 as `locus-map`, the Locus PC-Interface Net Map Server, from Locus Computing's PC-Interface product that let DOS PCs use Unix file and print services. The company and the product are long gone and no specification was published. The registration persists in `/etc/services`, so scanners print the name without evidence. Anything listening on 125 today is unrelated to Locus.",
  "exposure": {
    "verdict": "careful",
    "note": "The service name is a fossil; identify the actual listener before making any exposure decision."
  },
  "checkCommand": "nc -vz TARGET 125",
  "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"
    }
  ]
}