A number of Node Operators have reported that their internal security systems have detected the EBSI Node performing port scans on external IP's - which can be concerning.As EBSI is a de-centralized network we depend upon the performance and connectivity of all the nodes. For building a full mesh peer to peer network, all the nodes have to see each other in the network. Therefore to monitor the connectivity of the nodes we developed a tool running in one of the EBSI containers which do the following:

• Check if the required ports of the other nodes are reachable from your node.

• Measure the latency from node to all the other nodes in the network

• Record these stats to a small database which is then sent to Prometheus to populate one of our Grafana dashboards.

This is to ensure the health of the network and to have a clear overview of potential network problems.

The container is called ebsi-p2p-latency and in the docker compose file (/opt/ebsi/ebsi-p2p-latency/docker-compose.yml) you can see the IP's which are checked.Each hour the port scan is performed, below are the fixed ports which we scan:TCP:   443, 48722, 48733, 48745, 48780, 48790, 7000, 7050, 7051, 7053, 7054, 7055, 7056, 80

UDP:  47842|48733