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Git tutorial - IT technology blog
Repository Rescue: Mastering git fsck to Recover Code and Fix Data Errors
September 2, 2026
VMware tutorial - IT technology blog
Optimize Windows Virtual Machines to Run ‘Silky Smooth’ with VMware OS Optimization Tool (OSOT)
September 2, 2026
Monitoring tutorial - IT technology blog
Installing Pyrra: Managing SLOs and Alerts the Google SRE Way
September 2, 2026
Fedora tutorial - IT technology blog
Installing Woodpecker CI on Fedora Server: A Lightweight CI/CD Solution for Gitea
September 2, 2026
Docker tutorial - IT technology blog
Configuring Docker daemon.json: Prevent Disk Full Errors and Production Server Crashes
September 2, 2026
Python tutorial - IT technology blog
Python lxml: The ‘Heavy Weapon’ for Processing XML/HTML in Legacy Systems
September 2, 2026
Network tutorial - IT technology blog
Mastering NetworkManager Dispatcher: Automate ‘Everything’ When Changing Networks on Linux
September 2, 2026
Network tutorial - IT technology blog
Configuring DNS Split-Horizon with BIND9: The IP “Splitting” Trick for LAN and Internet
September 2, 2026
Development tutorial - IT technology blog
Building Background Jobs for Next.js: Say Goodbye to Redis, Welcome Inngest
September 2, 2026
MySQL tutorial - IT technology blog
mysqlslap: How I “Torture” MySQL to Find Real-World Load Limits
September 2, 2026
Python tutorial - IT technology blog
Posted inPython

Mastering Command-Line Interface (CLI) Development with Python and Click: Insights from an IT Engineer

Posted by By admin March 25, 2026
CLIs are powerful assistants for daily IT tasks. This article shares the secrets to building effective command-line tools with Python and Click, alongside practical experience from an IT Engineer.
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Database tutorial - IT technology blog
Posted inDatabase

Optimizing Database Performance for High-Traffic Websites: Practical Experience from ITfromzero

Posted by By admin March 25, 2026
For websites to handle immense traffic, database optimization is crucial. This article shares practical experience on strategies from design, query optimization, caching, to monitoring to keep your database robust and stable.
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Virtualization tutorial - IT technology blog
Posted inVirtualization

Converting Virtual Machine Disk Formats with qemu-img: VMDK, QCOW2, VDI, and VHD

Posted by By admin March 25, 2026
This article provides a detailed guide on using the `qemu-img` tool to convert common virtual machine disk formats such as VMDK, QCOW2, VDI, and VHD. It covers preparation steps, basic command syntax, and practical use cases, helping newcomers easily migrate and manage VMs.
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CentOS tutorial - IT technology blog
Posted inCentos

Install and Configure MariaDB on CentOS Stream 9: An Efficient MySQL Alternative

Posted by By admin March 25, 2026
This step-by-step guide is designed for IT beginners, helping you confidently deploy a powerful and stable MariaDB database system on CentOS Stream 9.
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Linux tutorial - IT technology blog
Posted inLinux

Understanding and Using Linux Capabilities: Fine-Grained Permissions Without Root for Applications

Posted by By admin March 25, 2026
Don't grant full root privileges to your application! This article provides a detailed guide on Linux Capabilities, a flexible permission mechanism that allows applications to perform privileged tasks without needing full root access. Includes a quick guide, in-depth explanations, and practical experiences for DevOps professionals.
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Security tutorial - IT technology blog
Posted inSecurity

OWASP ZAP Guide: Web Application Vulnerability Scanning from Basics to CI/CD Automation

Posted by By admin March 25, 2026
This article shares practical experience with OWASP ZAP. It guides you through web application vulnerability scanning, from basic installation and configuration to automated CI/CD integration. The goal is to help you effectively protect your applications, detect security risks early, and maintain a secure system.
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Database tutorial - IT technology blog
Posted inDatabase

PostgreSQL vs MySQL: A Detailed Comparison for IT Beginners

Posted by By admin March 25, 2026
Introduction: PostgreSQL and MySQL – Which One to Choose? When you start learning IT, especially…
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Development tutorial - IT technology blog
Posted inDevelopment

Makefile Tutorial: Optimize Your IT Project Workflow

Posted by By admin March 24, 2026
Introduction to the ProblemWhen working on software, do you find yourself repeatedly performing familiar tasks…
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Linux tutorial - IT technology blog
Posted inLinux

Effective Linux Debugging: A Detailed Guide with journalctl and dmesg

Posted by By admin March 24, 2026
Debugging on Linux is an essential skill. journalctl and dmesg are two powerful tools that help you identify the root cause of any issue, from services to hardware. This article guides you on how to use them effectively.
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Network tutorial - IT technology blog
Posted inNetwork

Professional IP Management: Efficient DHCP Server Configuration With Dnsmasq On Linux

Posted by By admin March 24, 2026
Configuring a DHCP server with Dnsmasq on Linux is an important network administration skill. This article provides detailed instructions from installation to advanced configuration tips, helping you proactively manage IPs, optimize performance, and avoid network conflicts.
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