Technical Articles

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

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RedesDevOps•5 min

How to analyze Wi-Fi network traffic in Wireshark monitor mode

Learn how to capture and inspect wireless network packets in monitor mode using Wireshark to identify bottlenecks and packet loss.

AutomaçãoRedes•4 min

How to read Modbus TCP energy meters with Node-RED

Learn how to configure Node-RED flows to collect electrical data from power meters via Modbus TCP, handling errors and displaying a local dashboard.

RedesDevOps•5 min

How to monitor Linux network traffic in real time with bpfTOP

Learn how to install and use bpfTOP to inspect active network connections per process on Linux in real time and quickly spot bandwidth bottlenecks.

RedesDevOps•5 min

How to isolate Docker container traffic with Linux VLANs

Learn how to create segmented Docker networks using VLANs on a Linux host to securely isolate production environments with high performance.

RedesProdutividade•4 min

How to flush DNS cache in Windows and fix network issues

Learn how to flush the DNS cache in Windows using the Command Prompt to fix website loading errors and quickly restore your network connection.

DevOpsRedes•7 min

How to inspect gRPC traffic in terminal with grpcurl

Learn how to debug microservices via terminal using gRPC reflection with grpcurl without heavy graphical interfaces.

DevOpsRedes•3 min

How to use awk to filter logs in Linux terminal

Learn how to master the awk command in Linux terminal to slice heavy log files, extract columns, and generate operational metrics effortlessly.

BackendRedes•5 min

How to use WebSockets in Go for real-time connections

Learn how to build a high-performance concurrent server in Go using goroutines and the gorilla/websocket package to manage thousands of simultaneous clients.

RedesDevOps•6 min

How to configure firewall rules with UFW on Linux

Learn how to block unnecessary ports, create secure default policies, and manage your Linux server traffic simply using UFW.

RedesDevOps•5 min

How to root local SSL certificates on Linux and macOS

Learn the complete step-by-step procedure to generate a local certificate authority, root SSL certificates on Linux and macOS, and eliminate browser security warnings during secure HTTPS development.