How to Install Glances System Monitor on Ubuntu Server

### **Section 1: Introduction** **What is Glances?** Glances is a cross-platform, open-source monitoring tool that provides a comprehensive overview of your system's resource usage. It displays information about CPU, memory, disk I/O, network traffic, processes, and more in a user-friendly interface. **Why use Glances?** * **Real-time monitoring:** Get instant insights into your server's performance. * **Customizable:** Set thresholds and alerts for specific metrics. * **Multiple interfaces:** Access Glances via terminal, web interface, or API. * **Lightweight:** Doesn't significantly impact your server's resources. ### **Section 2: Installation** **Requirements:** * An Ubuntu 22.04 server (like an EcoStack Cloud VPS) * Access to a terminal/command line **Steps:** 1. **Update Package List:** Ensure your system is up-to-date: ```bash sudo apt update ``` 2. **Install Glances:** Install Glances using the `apt` package manager: ```bash sudo apt install glances ``` 3. **Verify Installation:** Confirm Glances is installed correctly: ```bash glances --version ``` ### **Section 3: Using Glances** 1. **Start Glances in Terminal:** Run Glances in your terminal: ```bash glances ``` 2. **Interface Navigation:** Use the following keys to interact: * `h`: Show help screen * `c`: Sort processes by CPU usage * `m`: Sort processes by memory usage * `d`: Show disk I/O stats * `n`: Show network stats * `q`: Quit Glances 3. **Web Interface (Optional):** Enable and access Glances in your web browser: * Install the web server module: ```bash sudo apt install python3-bottle ``` * Start the web server: ```bash glances -w ``` * Access Glances in your browser at `http://your_server_ip:61208` ### **Section 4: Customization** 1. **Configuration File:** Modify the Glances configuration file (`/etc/glances/glances.conf`) to customize settings like refresh rate, thresholds, and display options. 2. **Plugins:** Extend Glances functionality with plugins. Install them using `pip`: ```bash sudo pip3 install glances[action,cpuinfo,folders,gpu,ip,raid,sensors,web] ``` ### **Section 5: Troubleshooting** * **Web Interface Issues:** If the web interface doesn't work, ensure the correct packages are installed and the service is running. Refer to the Glances documentation for troubleshooting steps. * **Missing Metrics:** Some metrics may require additional packages or configuration. Check the Glances documentation for details.