Day-4: Linux File Permissions | 100 Days of DevOps

The Linux file permissions were very complex for me at the beginning. In this article, we’ll break down Linux permissions in detail. I’ll try to make it as simple as possible. Why Permissions Matter Linux is a multi-user system. Even on your personal computer, system processes, services, and your own account interact with files. Permissions…

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Aws Glue & ETL bookmarks

ETL is not a tool → it’s a methodology or workflow. Extract → Transform → Load = a process to move raw data into a clean, usable form for analytics. 🔹 AWS Glue (tool/service) AWS Glue = Amazon’s serverless ETL service. It lets you build and run ETL pipelines without managing servers. Glue provides all…

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Top 10 Melhores Livros para Aprender Eletrônica Digital e Arduino

📚 Livros que explicam desde os conceitos básicos até aplicações práticas. Aprender eletrônica digital e Arduino pode abrir portas para projetos incríveis, desde automação até robótica. Para quem está começando ou quer se aprofundar, escolher bons livros faz toda a diferença. Neste artigo, reunimos os 10 melhores títulos que explicam desde os conceitos básicos até…

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Handling Distributed Transactions with Orchestrator Pattern (Withdrawal & Deposit Example)

When building microservices, one of the common challenges is dealing with distributed transactions — ensuring data consistency when multiple services need to work together. Let’s consider a simple but very real-world example: Service A: Withdrawal Service B: Deposit We want to withdraw money from one account and deposit into another.But what if one of them…

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The Blockchain Trilemma: Pick Two, Lose One

You know that old saying about projects: “Fast, cheap, good – pick two”? Well, blockchain has its own version of this cruel joke, and it’s been driving developers crazy for over a decade. Welcome to the blockchain trilemma, where you get to choose between decentralization, security, and scalability but you can only have two. It’s…

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NPR Music: Carlos Vives: Tiny Desk Concert

Carlos Vives brings his 30-year legacy of Colombian vallenato to the Tiny Desk with a 12-piece band blending accordions, alegre drums, gaita and even electric guitar. Revisiting classics like “La Cachucha Bacana,” “La Tierra del Olvido” and “Fruta Fresca,” he proves that deep grooves and rich folk traditions still pack a punch—even in a tiny…

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AWS re/Start – My Week 6 Experience

Half of the program, big smile on my face. Can you believe it? We’re moving! Day 25 Today was all about practice. Last week we did the theory side of Python; now we’re actually coding. And honestly, doing it feels way better than just hearing about it. Practice really makes things stick, so yeah… I’m…

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¿Cuáles son las fábricas de máquinas de hielo tubular fáciles de mantener que son mejores?

Los profesionales del procesamiento y distribución de alimentos enfrentan un reto crítico: elegir máquinas de hielo tubular que sean fáciles de mantener y ofrezcan una operación confiable y eficiente. Con base en años de experiencia en la industria alimentaria, las mejores máquinas se distinguen por tres factores clave: facilidad de mantenimiento, alta eficiencia energética y…

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