How to Monitor Server Resources with htop

Introduction

htop is an interactive process viewer for Linux that makes it easy to monitor CPU, memory, and process usage in real time. This guide shows you how to install and use htop on your server.

Step-by-step Guide

1. Update your package list:
2. Install htop:
   • (On CentOS/RHEL: sudo yum install htop)
3. Run htop:
   • You’ll see a colorful, real-time overview of your system’s resources.
4. Navigate and use htop:
   • Use the arrow keys to scroll through processes.
   • Press F6 to sort by different columns (CPU, MEM, etc.).
   • Press F9 to kill a process.
   • Press F10 to quit.
5. (Optional) Monitor a remote server via SSH:
   • ssh user@your_server_ip
   • htop

Recommendations

• Use htop regularly to spot resource bottlenecks.
• Combine htop with other tools like df and free for full monitoring.
• Avoid killing critical system processes.

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