Posted inLinux
Compiling & Installing Software from Source on Linux: An A-Z Guide
Introduction: When Do You Need to "Build" Software Yourself? On Linux, the most common way…
Posted inVMware
VMware Clone and Snapshot Guide: Effective VM Management Tips from Real-World Experience
Snapshot and Clone are powerful VMware features that help system administrators easily duplicate and manage VM states. This article, based on practical experience operating an 8-host ESXi cluster, guides you on effectively using these two tools to optimize workflows and minimize risks.
Posted inPython
Mastering Command-Line Interface (CLI) Development with Python and Click: Insights from an IT Engineer
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.
Posted inDatabase
Optimizing Database Performance for High-Traffic Websites: Practical Experience from ITfromzero
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.
Posted inVirtualization
Converting Virtual Machine Disk Formats with qemu-img: VMDK, QCOW2, VDI, and VHD
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.
Posted inCentos
Install and Configure MariaDB on CentOS Stream 9: An Efficient MySQL Alternative
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.
Posted inLinux
Understanding and Using Linux Capabilities: Fine-Grained Permissions Without Root for Applications
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.
Posted inSecurity
OWASP ZAP Guide: Web Application Vulnerability Scanning from Basics to CI/CD Automation
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.
Posted inDatabase
PostgreSQL vs MySQL: A Detailed Comparison for IT Beginners
Introduction: PostgreSQL and MySQL – Which One to Choose? When you start learning IT, especially…
Posted inDevelopment
Makefile Tutorial: Optimize Your IT Project Workflow
Introduction to the ProblemWhen working on software, do you find yourself repeatedly performing familiar tasks…