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How to Enable Raspberry Pi WiFi

Did you know that the WiFi dongle on a Raspberry Pi is disabled by default? To Enable Raspberry Pi Wifi, you must enable the WiFi from the command line. As usual with Linux servers, there is more than one way to do it. I prefer the path with the least...

Which Linux Version Do I Have? A Guide for New Users

As a Linux system administrator, there will be times when you need to quickly identify your Linux distribution and the specific version of the operating system installed on your system. This is essential for tasks like troubleshooting, software compatibility checks, and system updates. Whether you primarily access servers remotely via...

How to Enable / Disable SELinux

SELinux, or Security-Enhanced Linux, is a security framework developed to enhance the security of Linux-based operating systems. It closely monitors and controls access to various parts of the system, such as files, processes, and network resources. The Linux Security Framework implements a Mandatory Access Control model. This means it enforces...

Ollama: The Open-Source Solution for Building A ChatGPT Alternative

ChatGPT at home ChatGPT and Bard (now Gemini) have revolutionized AI interactions, but what if you could create your own AI language model? This tutorial will guide you through building your very own AI assistant, similar to ChatGPT, using the open-source Ollama framework. Ollama.Ai: Your Open-Source AI Solution Ollama.ai is...

How to Master Grep and RegEx

GREP (Global Regular Expression Print) is a command-line tool for searching and manipulating text files. It allows you to search for specific text patterns, called regular expressions, within a file or set of files and perform various operations on the matched text. Regular expressions, or regex for short, are patterns...

Best Linux One Liners

Here is a collection of my favourite Linux one-liners. Linux is such a versatile operating system that you can string commands consecutively to make a command that perfectly fits your requirements. Print Login Session Information Find the last users who have logged onto your system. Let’s break down the command...

How to Free Up Disk Space on Microsoft Windows

Microsoft Windows is available in many different versions like Windows 10 and Windows 11, is a widely used operating system. However, regardless of the Windows version, users often encounter the issue of running out of disk space. Learning how to free up disk space is a vital skill for everyone,...

Linux useradd command help and examples

Understanding the Linux File System

Understanding the Linux File System: Ext4, XFS, and More The Linux File System is a fundamental component of any Linux operating system. It serves as the layer that manages how data is stored and retrieved on storage devices.  In the Linux environment, several file systems exist to serve various needs...

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