Linux Commands

Discover the most important Linux commands to boost your productivity. Learn basic to advanced Linux CLI commands with examples for system administration and development tasks.

lsb_release -a Explained: Check Linux OS Version, Release, and Codename

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The lsb_release -a command displays detailed Linux distribution information, including distributor ID, OS version, release number, and codename. It is commonly used by system administrators, DevOps engineers, and security teams to verify operating system details for compatibility, automation, and compliance purposes. In Linux system administration, accurately identifying the operating system and distribution details is a … Read more

Troubleshooting High Server Load with Multiple PHP-FPM Versions on Ubuntu

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Running multiple PHP-FPM versions (e.g., PHP 8.2 and PHP 8.4) on an Ubuntu server with at least 16 CPUs and 60GB RAM should ideally provide smooth performance. However, if your server is experiencing high load, it’s crucial to identify the root cause and optimize your setup. In this guide, we’ll explore common issues that lead … Read more

How to Convert SSH Key to PEM Format – Step-by-Step Guide for Linux

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Learn how to convert SSH key to PEM format on Linux using ssh-keygen. Follow this step-by-step guide to safely convert your RSA 4096-bit private key for compatibility with legacy systems and applications. SSH keys are widely used for secure server access, and RSA 4096-bit keys provide strong encryption. In some cases, you may need to … Read more

Creating an SSH RSA 4096-bit key (Step-by-Step)

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Learn how to generate a secure SSH RSA 4096-bit key with step-by-step instructions for Linux, macOS, and Windows. Protect your servers and Git repositories with best practices for SSH key management, key permissions, and deployment. Secure Shell (SSH) keys are the backbone of secure remote authentication for servers, cloud services, and version control systems. Among … Read more

How to Setup a Go Web Service as a System-Level Service on Ubuntu (Step-by-Step Guide)

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Learn how to set up a Go web service as a system-level service on Ubuntu using systemd. This step-by-step guide helps you automate startup, improve reliability, and ensure smooth server deployment for production. If you’ve built a Go (GoLang) web service and want it to run automatically on server startup, the best approach is to … Read more

lshw Command in Linux: How to List Detailed Hardware Information

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lshw Command in Linux: How to List Detailed Hardware Information

Learn how to use the lshw command in Linux to view complete hardware details. Includes installation steps, examples, and tips for system administrators. When it comes to system administration or troubleshooting in Linux, understanding your hardware is just as important as knowing your software stack. The lshw (List Hardware) command is a powerful and detailed … Read more