Technical Articles

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

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BackendRedes•12 min

Difference Between HTTP OPTIONS and HEAD Methods in Preliminary Queries

Explore how HTTP OPTIONS and HEAD methods work behind the scenes to validate security permissions and inspect server headers without transferring page bodies.

DevOpsBackend•12 min

How to Split Large Text Files Using the Split Command in Linux

Learn how to slice massive text files using the native split command in your terminal. Discover how to adjust chunk sizes, maintain line integrity, and optimize data processing workflows.

DevOpsRedes•12 min

The /var/log Directory in Unix Systems: Organization, Event Logs, and Retention Lifecycle

Explore how the /var/log directory manages event history in Unix systems and how the logrotate utility automates file cleanup, compression, and retention to prevent disk space exhaustion.

DevOps•12 min

How to List Processes Sorted by Memory Usage Using the PS Command

Learn how to extract process memory consumption metrics in Linux using the ps command with sorting parameters for rapid performance troubleshooting.

DevOpsArquitetura•11 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•12 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•12 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.

AutomaçãoRedes•12 min

Physical Access Control with OSDP and AES-128 Encryption in RS-485 Tunnels

Learn how to engineer physical security systems using the OSDP protocol and AES-128 encryption over RS-485 buses, mitigating interception attacks in corporate facilities.

DevOpsRedes•12 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.

IAArquitetura•12 min

Autonomous Multi-Agent Architecture in Production with LangGraph and Qdrant

Learn how to build large-scale distributed systems powered by autonomous agents using LangGraph for subagent orchestration, Qdrant vector memory, and asynchronous function calling.