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  • Basics of Ubuntu
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Troubleshooting
  • 2025-12-11

How to Uninstall Ubuntu Safely: WSL Removal, Dual-Boot Cleanup, and App Deletion Guide

1. Introduction “I want to remove Ubuntu, but I’m not sure which method is right for my situation…” If you’ve ever felt this way, this guide will help. This article explains WSL (Windows Subsyst […]

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Network Configuration
  • 2025-12-11

Complete SSH Setup Guide on Ubuntu: Installation, Security Hardening, Advanced Configuration, and Troubleshooting

1. Introduction Configuring SSH on Ubuntu is essential for managing remote servers. SSH (Secure Shell) is a protocol that provides secure encrypted communication, allowing users to access servers remo […]

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Development Environment Setup
  • 2025-12-11

How to Check and Switch Python Versions on Ubuntu: Complete Guide for Developers

1. Introduction When using Python on Ubuntu, managing Python versions becomes an important task.Python frequently receives new releases, and depending on the development environment, you may need to u […]

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Server Setup and Management
  • 2025-12-11

How to Build a Secure and High-Performance Ubuntu Web Server with Apache (Complete Guide)

1. Introduction What Is an Ubuntu Web Server? A web server is a system that delivers websites over the internet. Popular web server software includes Apache, Nginx, and LiteSpeed, but the most widely […]

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Security and User Management
  • 2025-12-11

How to Switch and Manage Users in Ubuntu: GUI, CLI, Permissions, and Best Practices

1. Introduction What Is User Switching in Ubuntu? Ubuntu is a multi‑user Linux distribution that allows multiple users to share a single PC or server. Therefore, the ability to switch user accounts is […]

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Troubleshooting
  • 2025-12-09

How to Fix Ubuntu Installation Errors: Complete Guide for BIOS, USB Media, WSL, and Boot Issues

1. Introduction Ubuntu is a widely used Linux distribution, but installation errors can occur during setup. Beginners often encounter issues such as “Ubuntu cannot be installed,” “The installation sto […]

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Security and User Management
  • 2025-12-09

How to Manage and List Users on Ubuntu: Complete Guide to User Accounts, Permissions, and Commands

1. Introduction Ubuntu is a popular Linux distribution used by many users, ranging from personal environments to enterprise server systems. When managing an Ubuntu system, user account administration […]

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Software and App Management
  • 2025-12-09

How to Install Google Chrome on Ubuntu: Complete Beginner-Friendly Guide

1. Introduction When using Ubuntu, Firefox is pre-installed as the default browser. However, many users prefer Google Chrome for the following reasons: This article provides a detailed, beginner-frien […]

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System Administration and Optimization
  • 2025-12-09

How to Mount NTFS Drives on Ubuntu: Complete Guide to NTFS-3G, NTFS3, Permissions, and Troubleshooting

1. Introduction When using Ubuntu, there are many situations where you may want to mount a Windows NTFS-formatted hard drive or USB flash drive. However, Linux does not natively support NTFS, and as a […]

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Customization and Configuration
  • 2025-12-09

How to Enable Japanese Input on Ubuntu: Complete Guide to Mozc and Fcitx 5 (2025 Edition)

1. Introduction | What This Article Solves If you are new to Ubuntu or have recently switched from Windows, you may struggle with issues such as “Japanese input doesn’t work” or “I don’t know how to e […]

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