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 fundamental task. Whether you are troubleshooting an issue, validating application compatibility, preparing for compliance audits, or managing heterogeneous environments, knowing the exact Linux distribution and version is critical.The lsb_release -a command provides a standardized and reliable way to retrieve this information. What Is lsb_release? lsb_release…
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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 to high server load when running multiple PHP-FPM versions and provide practical solutions to resolve them. Why Is Your Server Under High Load? When running multiple PHP-FPM versions, several factors can contribute to high CPU or memory usage: Let’s dive into each issue and explore…
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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 convert your private SSH key to PEM format for compatibility with certain applications, tools, or older SSH clients. This guide explains how to perform the conversion safely on Linux. Why Convert SSH Key to PEM Format? Modern OpenSSH keys are often generated in the newer…
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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 the available key types, RSA 4096-bit keys provide a high level of security and broad compatibility, making them ideal for both enterprise and personal use. Generating a strong RSA key pair ensures encrypted communication between a client and a server, protecting credentials and sensitive data…
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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 configure it as a system-level service using systemd. This ensures your Go application runs reliably, restarts automatically on failure, and integrates seamlessly with the Ubuntu server environment. In this guide, we’ll walk you through every step from compiling your Go program to creating a systemd…
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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 tool that provides comprehensive information about the hardware configuration of your Linux system. Whether you are an IT professional, system administrator, or enthusiast trying to understand the hardware layout of your machine, lshw can give you a complete overview from CPU details to memory configuration…