--- stage: Shared responsibility based on functional area group: Shared responsibility based on functional area info: To determine the technical writer assigned to the Stage/Group associated with this page, see https://handbook.gitlab.com/handbook/product/ux/technical-writing/#assignments --- # Node exporter **(FREE SELF)** The [node exporter](https://github.com/prometheus/node_exporter) enables you to measure various machine resources such as memory, disk and CPU utilization. For self-compiled installations, you must install and configure it yourself. To enable the node exporter: 1. [Enable Prometheus](index.md#configuring-prometheus). 1. Edit `/etc/gitlab/gitlab.rb`. 1. Add (or find and uncomment) the following line, making sure it's set to `true`: ```ruby node_exporter['enable'] = true ``` 1. Save the file, and [reconfigure GitLab](../../restart_gitlab.md#reconfigure-a-linux-package-installation) for the changes to take effect. Prometheus begins collecting performance data from the node exporter exposed at `localhost:9100`.