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  • Basics of Ubuntu
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Basics of Ubuntu
  • 2025-12-09

What to Do After Ubuntu 20.04 Support Ends: Risks, ESM Options, and Migration to Ubuntu 24.04 LTS

1. Introduction Ubuntu 20.04 LTS (Focal Fossa) was released in April 2020 and has provided many users with a stable development environment and server infrastructure. However, the standard support end […]

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Security and User Management
  • 2025-12-09

How to Create and Manage Users on Ubuntu: A Complete Guide to adduser, useradd, and sudo Permissions

1. Introduction Ubuntu is one of the most widely used Linux distributions and is highly popular as both a server environment and development platform. Among its features, user management is one of the […]

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Customization and Configuration
  • 2025-12-16

Mastering Ubuntu Terminal Shortcuts: Boost Your Productivity with Essential, Intermediate, and Advanced Key Commands

1. Introduction When using Ubuntu, working with the terminal is essential. Especially for developers and server administrators, optimizing terminal operations is extremely important. By leveraging  […]

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Software and App Management
  • 2025-12-09

Mastering apt install on Ubuntu: Complete Guide to Package Management, Upgrades, and Troubleshooting

1. Introduction When using Ubuntu, the apt install command is essential for installing and managing software. With this command, you can easily install applications from package repositories. This art […]

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Troubleshooting
  • 2025-12-09

How to Use Ubuntu 24 Recovery Mode: Complete Guide to System Repair, GRUB Fixes, and Troubleshooting Methods

1. Introduction Ubuntu is widely used as a simple and user-friendly Linux distribution. However, due to system updates or configuration changes, there are cases where Ubuntu suddenly fails to boot. In […]

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Customization and Configuration
  • 2025-12-08

How to Fix Garbled Text on Ubuntu: Complete Guide to Locale, Fonts, and Encoding Settings

1. Introduction When using Ubuntu, you may occasionally encounter garbled characters. These issues can appear in various situations, such as terminal output, displaying Japanese filenames, or viewing […]

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Basics of Ubuntu
  • 2025-12-08

Ubuntu MATE Complete Guide: Features, Installation, and Beginner Tips

1. Introduction What Is Ubuntu MATE? Ubuntu MATE is a distribution in the Ubuntu family that uses the MATE desktop environment. MATE preserves the traditional desktop layout of the once-popular GNOME […]

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Security and User Management
  • 2025-12-08

Do You Need Antivirus on Ubuntu? Complete Linux Security and Virus Protection Guide

1. Introduction Ubuntu is one of the most widely used Linux distributions around the world. Thanks to its high stability and the advantages of open-source software, it is utilized by a broad range of […]

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Network Configuration
  • 2025-12-08

Ultimate SSH Setup Guide for Ubuntu: Secure Remote Access, Configuration, and Troubleshooting

1. Introduction By using SSH on Ubuntu, you can securely access and operate servers or PCs remotely. This article provides a detailed explanation of SSH—from its basic concepts and how to install an S […]

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Basics of Ubuntu
  • 2025-12-08

What Is Ubuntu? A Complete Beginner’s Guide to Linux, Features, Pros, and Use Cases

1. What Is Ubuntu? Overview of the Basics What Kind of OS Is Ubuntu? Ubuntu is an operating system (OS) built on the Linux kernel. There are many Linux distributions, but Ubuntu is among the most popu […]

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