Ports
| Port | Name | Protocol | Public | Purpose |
|---|---|---|---|---|
| 8001 | gossip | UDP | Yes | Cluster peer discovery. |
| 8899 | rpc | TCP | No | JSON-RPC HTTP. |
| 8900 | rpc-ws | TCP | No | WebSocket PubSub. |
| 9100 | metrics | TCP | No | Prometheus scrape. |
warning
Keep 8899, 8900, and 9100 off the public Internet.