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Hardening WordPress for SysAdmins: “Root-Level” Security from Web Server to Source Code

By admin May 9, 2026

Practical WordPress hardening experience for SysAdmins: blocking Nginx attacks, strict file system permissions, and secure wp-config.php tuning for production servers.

Security

Configuring HTTP Security Headers: ‘Armor’ for Nginx and Apache to Achieve A+ Standard

By admin May 9, 2026

Installing SSL (HTTPS) is just the beginning. To truly block Clickjacking and XSS, you need a powerful set of HTTP Security Headers. Upgrade your security in 5 minutes.

Monitoring

Mastering Linux Server Temperature with lm-sensors: Don’t Wait for Your CPU to Overheat

By admin May 8, 2026

Installing lm-sensors is an essential step to protect your Linux server. This guide helps you monitor CPU temperature and fan speed with just a few simple commands.

Git

Git Bundle: The Pro Way to Package Repositories for Offline Work

By admin May 8, 2026

Forget manual .zip compression. Git bundle is the professional way to package an entire repository and its commit history into a single file for offline workflows.

Database

Free Your Hands with SchemaSpy: Automating ERD Diagrams and Database Documentation

By admin May 8, 2026

Stop drawing ERD diagrams by hand! A guide to using SchemaSpy for automated database scanning, generating HTML reports, and professional relationship diagrams in minutes.

Fedora

Running Ubuntu and Arch Apps on Fedora: The Ultimate Distrobox Guide

By admin May 8, 2026

A guide on using Distrobox on Fedora to run Ubuntu, Arch Linux, or Debian apps with minimal overhead. No VM needed, deep menu integration, perfect for devs.

Artificial Intelligence tutorial - IT technology blog

Build Your Own Text-to-SQL System with Vanna.ai: Let AI Handle 80% of Mundane Reporting Tasks

By admin May 8, 2026

Learn to build a professional Text-to-SQL system with Vanna.ai and Python. This article shares real-world experiences to help reduce mundane reporting tasks for tech teams by 70%.

VMware

VMware RDM Configuration: When Should Virtual Machines “Bypass” to Access Physical Storage?

By admin May 8, 2026

Raw Device Mapping (RDM) allows VMware virtual machines to access SAN LUNs directly. This article provides a detailed configuration guide, compares Physical vs. Virtual Mode, and offers practical I/O optimization tips.

Claude Code: Less Asking, More Coding – Optimizing Settings.json for a Faster Workflow

By admin May 8, 2026

Stop pressing 'Yes' constantly in Claude Code. A detailed guide on configuring Settings.json to automate formatting, manage permissions, and double your coding productivity.

Python

Python CLI No More ‘Bland’ with Rich: From Debugging to Professional UI

By admin May 8, 2026

Learn how to use the Rich library to upgrade your Python CLI from dull black-and-white to professional. Guide to creating tables, progress bars, and fast debugging.

Building Your Own Mail Server with Postfix and Dovecot on Ubuntu 22.04: Take Full Control of Your Mail Flow

CentOS 7 to AlmaLinux/Rocky Linux Upgrade Guide using ELevate: Fast, Efficient, No Reinstall Needed

Eliminate ‘Noisy Neighbor’ Issues with VMware SIOC: Protecting Bandwidth for Critical VMs

Handling IOMMU Groups with ACS Override Patch: The Ultimate GPU Passthrough Trick for Budget Motherboards

Optimizing Proxmox: How to Create a ‘Gold Standard’ LXC Template for Mass Deployment in 30 Seconds

Optimizing PHP 8.3 on Ubuntu 24.04: Don’t Let Your Server Run Like a Snail

Mastering Python functools: Writing Better, Faster Code

Fixing SELinux Errors on Fedora for Good: Use setroubleshoot and audit2allow Instead of Disabling It

Build Your Own High-Performance, Low-Cost Git Server with Gitea on Fedora: Maximum Security with SELinux

Configuring Multi-WAN Failover on Linux: A “Never-Down” Internet Solution with Keepalived

Hardening WordPress for SysAdmins: “Root-Level” Security from Web Server to Source Code

Configuring HTTP Security Headers: ‘Armor’ for Nginx and Apache to Achieve A+ Standard

Mastering Linux Server Temperature with lm-sensors: Don’t Wait for Your CPU to Overheat

Git Bundle: The Pro Way to Package Repositories for Offline Work

Free Your Hands with SchemaSpy: Automating ERD Diagrams and Database Documentation

Running Ubuntu and Arch Apps on Fedora: The Ultimate Distrobox Guide

Build Your Own Text-to-SQL System with Vanna.ai: Let AI Handle 80% of Mundane Reporting Tasks

VMware RDM Configuration: When Should Virtual Machines “Bypass” to Access Physical Storage?

Claude Code: Less Asking, More Coding – Optimizing Settings.json for a Faster Workflow

Python CLI No More ‘Bland’ with Rich: From Debugging to Professional UI