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

How to Set Up Linux Server Monitoring in 10 Minutes (Free) If you're running a production app on a VPS and you're relying on "it seems fine" as your monitoring strategy — this post is for you. Here's a minimal, free monitoring setup that covers the basics in under 10 minutes. What We're Monitoring CPU usage RAM usage Disk usage Service health (is your app actually running?) Basic alerting when things go wrong Step 1: Install netdata (2 minutes) Netdata is free, open source, and installs with one command: bash <(curl -Ss https://my-netdata.io/kickstart.sh) It auto-discovers services, requires no config, and gives you a real-time dashboard on port 19999. # Access it (from your server) http://your-server-ip:19999 # Or tunnel it securely ssh -L 19999:localhost:19999 user@your-server # Then visit http://localhost:19999 in your browser Step 2: Basic Cron-Based Alerting (3 minutes) For dead-simple email alerts without a third-party service: # Install mailutils sudo apt install mailutils -y