| `besu_rpc_ws_authentication_credentials_file` | "" | Specifies the file to use for RPC http credentials |
| `besu_rpc_ws_authentication_jwt_public_key_file` | "" | Specifies the file to use for RPC http credentials via pubkey |
| `besu_metrics_host` | 0.0.0.0 | Specifies the host on which Prometheus accesses Besu metrics. The metrics server respects the `besu_whitelist` option |
| `besu_metrics_port` | 9545 | Specifies the port on which Prometheus accesses Besu metrics |
| `besu_bootnodes` | [] | List of comma-separated enode URLs for P2P discovery bootstrap. When connecting to MainNet or public testnets, the default is a predefined list of enode URLs |