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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Security and User Management
  • 2025-12-08

How to Change Passwords in Ubuntu: A Complete Guide for Beginners and System Administrators

1. Introduction The Importance of Changing Passwords in Ubuntu Ubuntu is an open-source Linux distribution used by millions of users around the world. Its ease of use and strong security features make […]

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Software and App Management
  • 2025-12-09

Mastering Package Management in Ubuntu: A Complete Guide for Developers and System Administrators

1. What Is Package Management in Ubuntu? The Basics of Package Management in Ubuntu Ubuntu includes a package management system that allows users to easily install, remove, and manage applications and […]

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Development Environment Setup
  • 2025-12-08

How to Install and Use pip on Ubuntu: Complete Guide to Python Package Management

1. How to Install pip on Ubuntu In Ubuntu, pip is an essential package management tool for Python. With pip, you can easily manage Python libraries and modules, significantly improving development eff […]

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Basics of Ubuntu
  • 2025-12-08

Mastering Ubuntu Reboot Commands: Essential Techniques for System Maintenance

1. Importance of Rebooting Ubuntu and Basic Reboot Methods The Importance of Rebooting Ubuntu Rebooting Ubuntu is an essential step for maintaining smooth system operations. In particular, after kerne […]

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Security and User Management
  • 2025-12-08

Essential Ubuntu Security Guide: Best Practices, Antivirus Measures, and Enterprise Protection

1. Basic Security Practices in Ubuntu Keeping Packages Updated Because Ubuntu is open-source, new features and fixes are constantly being added. Updating packages is the most fundamental and essential […]

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Network Configuration
  • 2025-12-08

Mastering the ping Command in Ubuntu: Network Diagnostics Made Easy

1. What Is the ping Command? Overview of the ping Command The ping command is a fundamental tool used to verify connectivity between your system and a host on a network. It sends ICMP ECHO_REQUEST pac […]

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Network Configuration
  • 2025-12-08

How to Configure NTP on Ubuntu: Accurate Time Synchronization with Chrony

1. Importance of NTP on Ubuntu What is NTP? NTP (Network Time Protocol) is a protocol designed to synchronize the time of computer systems accurately over a network. Maintaining accurate system time i […]

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System Administration and Optimization
  • 2025-12-08

Ubuntu Memory Monitoring Guide: How to Check and Optimize RAM Usage on Linux

1. The Importance of Memory Monitoring in Ubuntu 1.1 The Role of Memory Management in Ubuntu Memory monitoring is a crucial task in Linux systems such as Ubuntu. Checking memory usage is essential for […]

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Basics of Ubuntu
  • 2025-12-08

Efficient and Safe File Deletion in Ubuntu Using the rm Command: A Complete Guide

1. Introduction When using Ubuntu or other Linux distributions, deleting files and directories is a common task. However, unlike Windows or macOS, Linux does not have a built-in “Trash” feature for co […]

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Basics of Ubuntu
  • 2025-12-08

What Is ARM Architecture? Complete Guide to Installing and Using Ubuntu ARM for IoT, Cloud, and Development

1. What Is the ARM Architecture? What Is ARM? The ARM architecture is a processor design based on RISC (Reduced Instruction Set Computing). RISC enables efficient processing with a smaller set of inst […]

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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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