ITFROMZERO - Share tobe shared!

How to Install WordPress on CentOS Stream 9 with Nginx and Let’s Encrypt

By IT From Zero September 7, 2026

A guide to installing WordPress on CentOS Stream 9 using the LEMP stack. Focuses on optimizing Nginx and securing the system with SELinux without disabling it.

Virtualization

Managing Dozens of Proxmox Clusters Centrally with PDM (Proxmox Datacenter Manager)

By IT From Zero September 7, 2026

A detailed guide on installing Proxmox Datacenter Manager (PDM) to centrally manage multiple PVE clusters. An optimal solution for sysadmins to monitor all resources from a single interface.

Fedora

Self-Hosting a Postfix & Dovecot Mail Server on Fedora: Maximum Security with SSL and SELinux

By IT From Zero September 6, 2026

Step-by-step guide to installing Postfix and Dovecot on Fedora Server. Detailed instructions on SSL, DNS, and SELinux configuration to keep your mail out of spam.

Development

Scaling Socket.IO: Solving Real-time Synchronization with Redis Adapter

By IT From Zero September 6, 2026

Is your Socket.IO system failing when scaling horizontally? Learn how to use Redis Adapter to sync real-time data across multiple Node.js servers effectively.

Docker

GitHub Container Registry (GHCR) Guide: A Cost-Effective Way to Store Docker Images

By IT From Zero September 6, 2026

Stop letting Docker Hub limit your pull requests. Switch to GitHub Container Registry (GHCR) for free Docker image storage and lightning-fast CI/CD integration.

Monitoring

Docker Swarm Monitoring: ‘Diagnosing’ Replicas and Rolling Updates with Prometheus & cAdvisor

By IT From Zero September 6, 2026

A guide on setting up Prometheus and cAdvisor for Docker Swarm monitoring. Track replicas, node health, and rolling update status to ensure smooth operations.

Git

Eliminate “Junk” Code and Standardize Commits with the Husky & lint-staged Duo

By IT From Zero September 6, 2026

Eliminate junk code and standardize Git history with Husky, lint-staged, and commitlint. A detailed guide on automating code check workflows for JavaScript/TypeScript projects.

Database

Self-Hosting Apache Superset with Docker: A Cost-Effective BI Solution for MySQL and PostgreSQL

By IT From Zero September 6, 2026

A step-by-step guide to installing Apache Superset using Docker. A powerful open-source BI solution to visualize MySQL and PostgreSQL data while saving thousands in licensing fees.

Network

WireGuard Split Tunneling Mastery: Don’t Let Your VPN Slow Down Your Internet

By IT From Zero September 6, 2026

Split Tunneling allows you to use a VPN without slowing down your connection. Learn how to configure WireGuard on Linux for selective routing by IP and domain.

Ubuntu

Building Your Own ‘Personal Netflix’ with Plex on Ubuntu: Leveraging Hardware Transcoding for Smooth 4K Streaming

By IT From Zero September 6, 2026

A guide to building a personal movie streaming system with Plex on Ubuntu. Leverage Hardware Transcoding for smooth 4K video processing and CPU resource savings.

Configuring BFD with FRRouting on Linux: Sub-Second Link Failure Detection for OSPF and BGP

Clean Up Stale Remote-Tracking Branches with git remote prune and git fetch –prune

Implementing Single Sign-On (SSO) with Keycloak and Next.js: A Complete OpenID Connect (OIDC) Guide

Enable MySQL Slow Query Log and Use pt-query-digest to Find Database Bottlenecks

MetaGPT with Python Guide: Automate Software Development with Multi-Agent Systems

Configuring SR-IOV on KVM/Proxmox: Share 10GbE NICs with Near Bare-Metal Performance

Docker Autoheal Guide: Automatically Restart Unhealthy Containers

APScheduler in Python: Production-Ready Background Job Scheduling for Backend

How to Reclaim Storage Space (Space Reclamation / UNMAP) on VMware ESXi

How to Use Bitnami Sealed Secrets on Kubernetes: Secure GitOps Secrets Management

How to Install WordPress on CentOS Stream 9 with Nginx and Let’s Encrypt

Managing Dozens of Proxmox Clusters Centrally with PDM (Proxmox Datacenter Manager)

Self-Hosting a Postfix & Dovecot Mail Server on Fedora: Maximum Security with SSL and SELinux

Scaling Socket.IO: Solving Real-time Synchronization with Redis Adapter

GitHub Container Registry (GHCR) Guide: A Cost-Effective Way to Store Docker Images

Docker Swarm Monitoring: ‘Diagnosing’ Replicas and Rolling Updates with Prometheus & cAdvisor

Eliminate “Junk” Code and Standardize Commits with the Husky & lint-staged Duo

Self-Hosting Apache Superset with Docker: A Cost-Effective BI Solution for MySQL and PostgreSQL

WireGuard Split Tunneling Mastery: Don’t Let Your VPN Slow Down Your Internet

Building Your Own ‘Personal Netflix’ with Plex on Ubuntu: Leveraging Hardware Transcoding for Smooth 4K Streaming