6.2.3 Nodes Port Configuration

As a result of installing the node in given containers, several services are launched, the ports of which are presented in the table below. Open ports can be checked with the sudo ss -ltn command.

Figure 114 Opened ports after the dgt node building procedure

#	TCP/IP Port	Service	External Usage
1	22	SSH service, required for remote access to the server	Required for remote interaction with the node
2	4104	The service of the main component – the validator and interaction with the transaction processor (including support for internal rest-API)	Must be open if the dashboard is located on a different physical machine
3	5051	Port for other components to interact with the consensus service (for Inner net)
4	8003	Rest-Api Dashboard	Must be opened if the service is located on a separate server or outside the Inner-net network
5	8101	Node interaction	Must be open for interacting with other nodes
6	8108	Node interaction	Must be open if the node will accept external requests to execute transactions

DGT nodes can use various network ports for communication, which are configured through environment variables set up by the upDgtCluster.sh script in the DGT director (for example, /DGT-Matagami/CORE):

- API=8108 (API service)

- COMP=4104 (supporting transaction families)

- NET=8101 (supporting the network)

- CONS=5051 (consensus service)