Technical Articles

Practical articles, in-depth tutorials, and architectural insights on software engineering, AI, and systems.

All categories Arquitetura Automação Backend Carreira DevOps Eletrônica Engenharia Frontend Hardware IA Negócios Produtividade Redes

Redes•12 min

MTU and MSS in Practice: How Misconfigurations Cause Hidden Network Failures

Learn how mismatched MTU and MSS settings cause frozen connections, inexplicable drops, and chronic slowness, and master network troubleshooting.

RedesDevOps•12 min

DNS TTL: How Cache Timing Influences Migrations and Infrastructure Changes

Learn how DNS TTL controls the propagation speed of changes and discover strategies to prevent downtime during server migrations and provider switches.

RedesDevOps•11 min

Reverse DNS in Email Servers: How It Works and Why It Blocks Spam

Learn how Reverse DNS operates in email server authentication, validating digital identities across the internet and preventing your messages from hitting spam folders.

DevOpsArquitetura•12 min

Linux OOM Killer: How the Memory Defense Mechanism Works

Learn how the Linux OOM Killer behaves when RAM runs out, what criteria determine which process gets terminated, and how to protect your infrastructure.

BackendDevOps•12 min

Linux File Descriptors: How the Operating System Manages Files and Sockets

Explore how the Linux kernel uses file descriptors to handle open files, network connections, and data pipes in a unified and efficient architecture.

DevOpsEngenharia•12 min

Linux Inodes: Why Your Disk Fails Despite Available Space

Learn why the df command shows free space while your disk rejects new files. Understand the role of inodes in Linux and how to resolve metadata exhaustion.

DevOpsRedes•12 min

Linux Load Average: What the Numbers Really Mean

Learn how to correctly interpret Load Average in Linux beyond CPU myths. Understand the difference between processes waiting for a processor and tasks blocked on disk I/O.

BackendEngenharia•12 min

Memory Leak in Applications: How to Identify Memory Leaks and Diagnose Excessive Consumption

Discover how silent memory leaks crash servers and learn practical diagnostic techniques and monitoring tools to identify applications consuming increasingly more resources.

BackendArquitetura•12 min

PostgreSQL Table Partitioning for High Volume Data

Learn how to structure declarative partitioning in PostgreSQL to manage billions of rows in Node.js applications. Discover how the query optimizer reduces search time and improves write performance.

EletrônicaHardware•12 min

Logic Level Converters: How to Connect 3.3V and 5V Devices Safely

Learn how to connect 3.3V and 5V electronic components without frying your circuits. Discover voltage risks, resistive dividers, and bidirectional converters.