Monitoring server vital resources like CPU, memory, and disk is crucial for performance, uptime, and system health.Learn how to create a lightweight monitoring script in Python to collect system metrics, send email alerts, log alerts, and run silently on Linux.Dependencies include Python 3, psutil library for system metrics, and msmtp for sending alert emails via Gmail.The Python script collects metrics, formats email alerts based on thresholds, sends emails using msmtp, and logs alerts locally.