How to Set Up Linux Server Monitoring in 10 Minutes (Free)

This guide explains how to set up free Linux server monitoring in under 10 minutes using Netdata for real-time dashboards, cron-based shell scripts for disk/RAM/service alerts via email, PM2 for Node.js process management, and a simple health check endpoint. It covers CPU, RAM, disk usage monitoring and basic alerting without any paid third-party services.