Default ports for nodes
This guide provides a detailed list of default ports used across Bor and Heimdall nodes. Understanding these ports is crucial for network configuration and effective communication between nodes.
Bor node
Name
Port
Tags
Description
Network Listening Port
30303
Public
Port used by Bor for peer connections and synchronization.
RPC Server
8545
Can be Public, Internal
RPC port for sending transactions and fetching data. Heimdall uses this port to obtain Bor headers.
WebSocket Server
8546
Can be Public, Internal
WebSocket port for real-time updates.
GraphQL Server
8547
Internal
GraphQL port for querying data.
Prometheus Server
9091
Can be Public, Monitoring
Prometheus APIs for Grafana data source. Can be mapped to ports 80/443 via an Nginx reverse proxy.
Grafana Server
3001
Can be Public, Monitoring
Grafana web server. Can be mapped to ports 80/443 via an Nginx reverse proxy.
Pprof Server
7071
Internal, Monitoring
Pprof server for collecting Bor metrics.
UDP Discovery
30301
Can be Public, Internal
Default port for Bootnode peer discovery.
Heimdall node
Name
Port
Tags
Description
Network Listening Port
26656
Public
Port used by Heimdall for peer connections and synchronization.
RPC Server
1317
Can be Public, Internal
RPC port for sending transactions and fetching data. Bor uses this port to interact with Heimdall.