DevOps – Page 7 – ITFROMZERO

Building an Internal Certificate Authority with step-ca: Say Goodbye to LAN Security Warnings

By admin April 11, 2026

Say goodbye to red security warnings in your LAN. A detailed guide on building an internal Certificate Authority (CA) with step-ca and automating SSL via ACME.

Docker

Running GitHub Actions Locally with act: ‘Lightning Fast’ Pipeline Debugging Without Pushing Code

By admin April 11, 2026

Tired of constant 'fix ci' commits? Learn how to use act and Docker to debug GitHub Actions locally, saving time and keeping your Git history clean.

Docker

Docker Resource Limits: Don’t Let One Container Crash Your Entire Server

By admin April 11, 2026

Configuring Docker Resource Limits is a must for professional DevOps. Learn how to limit CPU, RAM, and Disk I/O to prevent server hangs and optimize infrastructure costs.

Artificial Intelligence tutorial - IT technology blog

IT Automation: Don’t Just ‘Chat’ with AI, Turn It Into a Real Agent

By admin April 11, 2026

No more manual log monitoring! Discover how to combine Python scripts with AI APIs to automatically detect, analyze, and suggest server fixes in seconds.

Monitoring

VictoriaMetrics Installation Guide: A Prometheus Alternative Saving 90% Disk Space

By admin April 10, 2026

A detailed guide on installing VictoriaMetrics as a Prometheus alternative. Save 90% disk space, reduce RAM usage, and boost query speeds for large-scale monitoring systems.

Security

Mastering SOPS for Secret Encryption: Stop API Key Leaks on Git

By admin April 10, 2026

Stop leaking API keys on Git! Here is a detailed guide on using Mozilla SOPS to encrypt secrets in YAML/JSON files with PGP. The ultimate security solution for Devs and DevOps.

Linux

Escape ‘Dependency Hell’ on Linux with Nix: The Package Manager That Saved Me at 2 AM

By admin April 10, 2026

Nix Package Manager is a lifesaver for isolating software, supporting instant rollbacks, and completely eliminating library conflict errors on Linux. This guide provides practical installation and usage tips for DevOps and Sysadmins.

Docker

Docker Compose Watch: A Game-Changer for a Seamless Docker Development Experience

By admin April 10, 2026

Docker Compose Watch automatically syncs code to containers the moment you save. Learn how to skip manual image builds and make Docker development as smooth as running locally.

Fedora

Managing Multiple Node.js, PHP, and MariaDB Versions: Fedora’s DNF Modularity “Secret Weapon”

By admin April 10, 2026

Forget nvm or unofficial repos. With DNF Modularity on Fedora, switching between Node.js 18, 20 or PHP 7.4, 8.2 is simpler and safer than ever.