{
  "port": 211,
  "protocol": "tcp",
  "service": "Texas Instruments 914C/G Terminal",
  "oneLiner": "Registered to a Texas Instruments 914C/G terminal; museum-grade, never seen live.",
  "whatItIs": "IANA registers port 211 for the Texas Instruments 914C/G Terminal, under both the legacy name `914c/g` and the well-formed replacement `914c-g`. It served a specific TI terminal product and has no specification or implementation in circulation. The entry survives in `/etc/services`, so a scan of an open 211 will print that name with no basis. Identify the real listener; it will be something else entirely.",
  "exposure": {
    "verdict": "careful",
    "note": "The registered service does not exist in practice, so an open 211 is an unidentified listener."
  },
  "checkCommand": "nc -vz TARGET 211",
  "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"
    }
  ]
}