Network engineers transitioning to Linux administration often struggle with directory navigation. Unlike Windows with its drive letters (C:\, D:\), Linux uses a single hierarchical tree structure starting from the root directory (/). The Linux directory structure follows the Filesystem Hierarchy Standard (FHS). This standard ensures consistency across different Linux distributions. Understanding this structure is essential…

Linux user management forms the backbone of system security. Every file, process, and service runs under a specific user context. Proper user and permission management prevents unauthorized access, data breaches, and system compromises. This guide teaches you how to: Create and manage users efficiently Configure file permissions correctly Implement access control lists Automate user provisioning…

Every systems administrator encounters this scenario: You SSH into a production server during an incident, and you need to know the exact Linux version immediately. Version information determines: Which security patches apply to your system What commands and features are available How to troubleshoot kernel-specific issues Which documentation to reference This guide shows you three…