{
  "port": 616,
  "protocol": "both",
  "service": "sco-sysmgr",
  "oneLiner": "SCO System Administration Server — the admin service of a SCO Unix box, and those are museum pieces.",
  "whatItIs": "IANA registers TCP and UDP 616 as \"sco-sysmgr\", the SCO System Administration Server, from the SCO OpenServer and UnixWare line. It is one of a small cluster of SCO administrative ports registered in the same range, alongside sco-dtmgr on 617. SCO Unix has had no meaningful presence for two decades, so a listener here is either genuinely ancient industrial or point-of-sale hardware, or unrelated software that happened to pick 616.",
  "exposure": {
    "verdict": "never",
    "note": "A system administration plane on an operating system that stopped receiving security fixes long ago. If this is real SCO, it should be behind a firewall and on a plan to be retired."
  },
  "checkCommand": "nc -vz -w 3 TARGET 616",
  "links": [
    {
      "title": "IANA Service Name and Transport Protocol Port Number Registry — 616",
      "url": "https://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.xhtml?search=616",
      "kind": "iana"
    }
  ]
}