Hi@akhtar,
To connect your system's metrics with Prometheus server, you have to use Node Exporter software. Node Exporter allows you to monitor metrics. You can follow the below given steps to configure Node Exporter in your system.
https://github.com/prometheus/node_exporter/releases/download/v1.0.0/node_exporter-1.0.0.linux-amd64.tar.gz
$ tar -xzf node_exporter-1.0.0.linux-amd64.tar.gz
$ ./node_exporter
Now you can browse your system's metrics using Web UI.
localhost:9100