config.json

{
  "servers": [{
      "server": {
        "port": 8000,
        "host": "0.0.0.0"
      },
      "websockets": {
        "path": "/*",
        "maxPayloadLength": 65536,
        "idleTimeout": 240,
        "compression": 1
      }
    }, {
      "server": {
        "port": 8433,
        "host": "0.0.0.0",
        "key_file_name": "misc/key.pem",
        "cert_file_name": "misc/cert.pem",
        "passphrase": "1234",
        "dh_params_file_name": "misc/params.dh",
        "ssl_prefer_low_memory_usage": true
      },
      "websockets": {
        "path": "/*",
        "maxPayloadLength": 65536,
        "idleTimeout": 240,
        "compression": 1
      }
    }
  ],

  "tracker": {
    "maxOffers": 20,
    "announceInterval": 120
  },

  "websocketsAccess": {
    "allowOrigins": ["https://xxx.com", "https://yyy.com"],
    "denyOrigins": ["https://xxx.com", "https://yyy.com"],
    "denyEmptyOrigin": true
  }
}