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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System Administration and Optimization
  • 2025-12-05

How to Check the Kernel Version in Ubuntu: Complete Guide for Beginners and Advanced Users

1. Introduction Ubuntu is a widely used open-source operating system among Linux distributions. One of the essential components that significantly affects system stability, security, and performance i […]

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System Administration and Optimization
  • 2025-12-05

How to Check the Kernel Version in Ubuntu: Complete Guide for Beginners and Advanced Users

1. Introduction Ubuntu is one of the most widely used open-source operating systems among Linux distributions. One of the key elements that significantly affects system stability, security, and perfor […]

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System Administration and Optimization
  • 2025-12-05

How to Safely Upgrade Ubuntu: Complete Guide for Beginners and Advanced Users

1. Introduction Ubuntu is a popular Linux distribution known for its simplicity and stability, and regular upgrades are recommended to provide users with the latest security updates and new features. […]

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Network Configuration
  • 2025-12-05

How to Configure IP Addresses in Ubuntu: A Complete Beginner-Friendly Guide

1. Introduction Configuring IP addresses in Ubuntu is a crucial process for improving network stability and performance. In particular, when using Ubuntu in server environments or specialized networks […]

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Basics of Ubuntu
  • 2025-12-05

Ubuntu vs Linux: Understanding Their Key Differences and How to Choose the Right OS

1. Introduction Many people may wonder, “What’s the difference between Ubuntu and Linux?” or “What exactly is Linux?” While Ubuntu is widely known as one of the Linux distributions, understanding thei […]

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Security and User Management
  • 2025-12-05

How to Configure the UFW Firewall on Ubuntu: Installation, Rules, Logging, and Security Guide

1. Introduction The Importance of Firewalls in Ubuntu Any system connected to the internet is exposed to potential risks, including unauthorized access from external sources. A firewall is essential t […]

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Development Environment Setup
  • 2025-12-05

How to Install and Secure MySQL on Ubuntu: Complete Guide for Setup, User Management, and Maintenance

1. Purpose and Benefits of Installing MySQL on Ubuntu By installing MySQL in an Ubuntu environment, you can efficiently manage data for business and web applications. MySQL is lightweight, fast, and c […]

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Basics of Ubuntu
  • 2025-12-05

How to Safely Delete Directories in Ubuntu: Commands, Options, and Recovery Methods

1. Introduction Deleting directories in Ubuntu is an essential task for efficient file management. However, unlike some desktop environments, deleted directories in Linux are not moved to a trash bin— […]

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Security and User Management
  • 2025-12-05

Understanding and Managing the Root Account in Ubuntu: Security, Activation, and Best Practices

1. Overview and Role of the Root Account in Ubuntu The “root account” in Ubuntu is a special user account with the highest level of access across the entire system. It allows administrators to perform […]

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Basics of Ubuntu
  • 2025-12-05

Why 32-Bit Support Still Matters on Ubuntu: Current Status, Risks, and Best Alternatives

1. Why 32-Bit Support Is Still Necessary on Ubuntu Overview As most systems transition to 64-bit architectures, the need for 32-bit support continues in environments with older PCs or limited resource […]

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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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