Technical Articles

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

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DevOpsArquitetura•5 min

Difference between apt-get and apt in Debian package management

Explore the practical differences between the traditional apt-get and the modern apt utility in Debian-based Linux package administration.

BackendDevOps•6 min

Understanding the HTTP 413 Payload Too Large Status Code and Increasing Server Limits

Learn why the HTTP 413 error occurs when uploading large files and discover how to reconfigure Nginx, Apache, and Node.js to accept larger requests.

DevOpsRedes•5 min

How to View the Last Lines of Constantly Updating Files with the tail -f Command

Learn how to monitor log files in real time using the tail -f command in the Linux and Unix terminal, optimizing system debugging workflows.

DevOpsRedes•6 min

Linux Terminal Mastery: Diagnostics, Process Management, and Network Tools

Master complex operating system troubleshooting using essential Linux terminal commands for networking, process control, environment variables, and file manipulation.

DevOps•4 min

Distributed Tracing with OpenTelemetry and Context Propagation in Microservices

Learn how to implement end-to-end traceability and context propagation in microservices using OpenTelemetry, reducing latency and diagnosing bottlenecks in production.

RedesDevOps•5 min

WireGuard Protocol in Overlay Networks: Layer 3 Tunnels and Mesh Topologies

Learn how to build secure overlay networks with WireGuard and ChaCha20-Poly1305 encryption to interconnect datacenters and multi-cloud environments with high performance.

DevOps•4 min

Blue-Green Deployments and Zero-Downtime with Docker Swarm and Traefik Proxy

Learn how to build a continuous delivery architecture with zero downtime using Docker Swarm and Traefik Proxy for dynamic routing in production environments.

DevOpsRedes•7 min

How to Calculate the MD5 Hash of a String or Configuration File via Console

Learn how to generate MD5 digital signatures in Linux, macOS, and Windows environments using the command line to validate data integrity and configuration files.

DevOps•5 min

Understanding Read, Write and Execute Permissions on Linux Directories

Learn how read, write, and execute permissions work on Unix and Linux directories to prevent critical security flaws and access issues.

HardwareDevOps•5 min

How to Check Processor Architecture with the uname -m Command

Learn how to use the uname -m command on Unix and Linux systems to quickly identify whether your processor uses x86_64 or ARM64 architecture, preventing software compatibility failures.