client.json

{
  "client": {
    "safe_mode": false,
    "address": "XXIP",
    "subscriptions": [
      "linuxhost",
      "XXSHORTHOSTNAME",
      "XXSOME_PRODUCT_HOSTTYPE_IDENTIFIER",
      "XXANOTHER_PRODUCT_HOSTTYPE_IDENTIFIER"
    ],
    "name": "XXSHORTHOSTNAME"
  }
}

you can have as many subscriber names as you need.

Ideally, you're using a handful of them based on either your host types or (in some cases) to highlight specific serverices on the box.

such as:
hosting_webserver
hosting_ftpserver