オープンソースの力を活用する方法~Ubuntuの世界へようこそ~

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  • Basics of Ubuntu
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Troubleshooting
  • 2025-12-08

How to Fix Ubuntu Not Booting and Black Screen Issues: Step-by-Step Troubleshooting Guide

1. Introduction Facing a situation where Ubuntu fails to boot and only displays a black screen can be extremely stressful for many users. This article explains specific steps to resolve such problems. […]

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Basics of Ubuntu
  • 2025-12-08

How to Safely Shut Down Ubuntu: Essential Commands and Best Practices

1. Why Ubuntu Shutdown Is Important 1.1 Importance of Proper System Shutdown In Ubuntu and other Linux-based systems, performing a proper shutdown is crucial for maintaining system integrity. Forcing […]

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Network Configuration
  • 2025-12-08

How to Configure a Static IP Address on Ubuntu Using Netplan: Complete Guide for Reliable Networking

1. What Is a Static IP Address? Understanding Static IP Addresses An IP address is a unique identifier assigned to each device on a network. In most environments, IP addresses are assigned dynamically […]

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Security and User Management
  • 2025-12-08

How to Use Root Privileges Safely in Ubuntu: Complete Guide to sudo, root Login, and Best Practices

1. Introduction Overview In Ubuntu, the “root” user plays a critical role when performing system administration and essential configurations. However, for security reasons, Ubuntu disables […]

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Basics of Ubuntu
  • 2025-12-08

What Is Lubuntu? A Complete Guide to Installing, Customizing, and Optimizing Lubuntu 24.04

What Is Lubuntu? Lubuntu is one of the official Ubuntu flavors, known for being lightweight and consuming minimal system resources. It uses a lightweight desktop environment called LXQt, enabling smoo […]

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System Administration and Optimization
  • 2025-12-08

How to Monitor and Manage NVIDIA GPUs on Ubuntu Using nvidia-smi

1. Introduction When utilizing a GPU on Ubuntu, it is essential to accurately monitor its status. This is particularly important in workloads involving deep learning or graphic rendering, where unders […]

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Network Configuration
  • 2025-12-08

How to Open Ports on Ubuntu Using UFW: A Complete Firewall Configuration Guide

1. Introduction Port opening is a necessary configuration that allows specific applications and services to be accessed from external sources. Ubuntu closes most ports by default to enhance security, […]

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System Administration and Optimization
  • 2025-12-08

How to Monitor CPU Temperature on Ubuntu: Glances, lm-sensors, and Thermal Zones Explained

1. Introduction Monitoring CPU temperature in Ubuntu is essential for maintaining system performance and preventing potential damage caused by overheating. This becomes especially important during lon […]

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Software and App Management
  • 2025-12-08

How to Unzip Files on Ubuntu: Complete Guide to the unzip Command and Best Practices

1. Introduction For Ubuntu users, compressing and extracting files is part of everyday work. ZIP files, in particular, are widely used for data compression and transfer, making it essential to know ho […]

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Troubleshooting
  • 2025-12-08

How to Reset a Forgotten Ubuntu Password: A Complete Recovery Guide for Secure Access

1. Introduction Forgetting your Ubuntu password is a common issue, and this article explains how to deal with it. It is essential to note that using these methods on another user’s system withou […]

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CATEGORY

  • Basics of Ubuntu
  • Network Configuration
  • System Administration and Optimization
  • Security and User Management
  • Development Environment Setup
  • Software and App Management
  • Troubleshooting
  • Customization and Configuration
  • Server Setup and Management
  • Backup and Recovery
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