admin – Page 20 – ITFROMZERO

Securing Secrets in GitHub Actions: Don’t Leak API Keys Due to a Moment of Negligence

By admin April 29, 2026

Don't expose API keys and tokens on GitHub. A detailed guide on using GitHub Actions Secrets to protect sensitive information and deploy CI/CD securely.

Virtualization

Customizing Linux Cloud Images with virt-customize: Fast, Efficient, No VM Boot Required

By admin April 29, 2026

Forget manual configuration. Use virt-customize to inject SSH keys, install packages, and customize Linux Cloud Images in just 60 seconds without booting the VM.

Development

Implementing Feature Flags with Unleash: A Safety Brake for Your System Without Redeploying Code

By admin April 29, 2026

Manage features safely with Unleash Feature Flags. Learn how to set up a self-hosted instance, integrate with Node.js, and roll out features without redeploying code.

Monitoring

Elastic APM: Deep-Diving into Code and Diagnosing Systems Without the Guesswork

By admin April 29, 2026

Stop running your systems in the dark. A detailed guide on using Elastic APM to deep-dive into code, detect slow queries, and optimize real-world application performance.

Fedora

Installing Fedora IoT on Raspberry Pi: An Unbreakable Edge Solution with OSTree

By admin April 29, 2026

Forget the fear of OS corruption during remote updates. This guide helps you master Fedora IoT on Raspberry Pi with OSTree and Podman.

Virtualization

Kata Containers: When VM Security Meets Container Speed

By admin April 29, 2026

A guide to installing Kata Containers to combine VM security with container speed. Learn to configure microVMs for Docker and compare QEMU vs Firecracker.

VMware

Building a Hyper-Converged Storage System with VMware vSAN: From Local Drives to Professional Clusters

By admin April 29, 2026

A detailed guide on building your own Hyper-Converged Infrastructure (HCI) using VMware vSAN. Save on hardware costs, optimize performance, and centralize management.

Python

Cleaning Up Python Code with Decorators: From ‘Copy-Paste’ Nightmares to Professional Programming

By admin April 29, 2026

Learn how to use Python Decorators to eliminate boilerplate code, optimize logging, and manage permissions. Real-world insights to make your scripts cleaner and more professional.

Centos

Configuring LDAP on CentOS: Effortlessly Manage Hundreds of Servers Centrally

By admin April 29, 2026

A detailed guide on configuring LDAP Client on CentOS using SSSD. A solution that helps SysAdmins manage hundreds of servers centrally, securely, and professionally.

Network

Mastering Network Namespaces: Building Your Own Isolated Network Lab on Linux

By admin April 29, 2026

A detailed guide on using Network Namespaces on Linux for network isolation. A lightweight VM alternative for testing applications and system management.