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Have you ever experienced your Raspberry Pi booting normally from one electrical outlet, only to find it failing to start up when plugged into another outlet? While this issue might initially seem bizarre or trivial, inconsistent boot behavior depending on power outlets can indicate underlying electrical or power supply problems. Ensuring your Raspberry Pi receives stable and reliable power is critical—not only for booting but also for long-term device stability and reliability. ...

PostgreSQL is one of the most powerful and widely-used open-source relational databases in the industry. Its flexibility, scalability, and robust feature set make it a top choice for organizations of all sizes. However, as your data grows and workloads intensify, it’s essential to ensure your PostgreSQL instance is optimized for peak performance. This comprehensive guide will provide industry insights and practical best practices for performance tuning your PostgreSQL database, helping you to maintain optimal efficiency, reliability, and speed. ...

Symbolic links (symlinks) and hard links are two powerful features in Unix/Linux systems, enabling users and administrators to manage file systems efficiently. However, symbolic links are far more common in everyday usage than hard links. Understanding why this is the case helps you make informed decisions about how to organize your filesystem effectively. In this tutorial, we’ll explain clearly and concisely why symbolic links are preferred over hard links, including practical examples to illustrate their differences. ...

GitHub is a treasure trove of innovation, collaboration, and exciting new technologies. Every day, developers around the world create and share thousands of repositories, offering fresh ideas, tools, and solutions to common programming challenges. Hacker News, one of the most popular tech communities, regularly highlights new and exciting GitHub repositories, showcasing the latest trends and breakthroughs in software development. In this tutorial-style article, we’ll explore over 30 brand-new GitHub repositories recently featured on Hacker News. We’ll explain what makes these repositories special, how you can use them, and provide practical examples to help you integrate some of these tools and libraries into your own projects. ...

Encrypting sensitive information is a fundamental security practice in modern application development. Even if you’re working with simple, hardcoded text, applying proper encryption techniques can protect your data from unauthorized access or reverse engineering. In this tutorial, we’ll walk through the process of encrypting hardcoded text in a C++ program, providing clear examples and step-by-step guidance suitable for developers at any skill level. Why Encrypt Hardcoded Text? Hardcoded text strings might contain sensitive information such as API keys, passwords, or other confidential data. If these strings are stored in plaintext within your binary, they become vulnerable to attackers who might inspect your executable file. Encrypting these strings helps ensure that even if your binary is compromised, the attacker won’t easily access critical information. ...