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Database tutorial - IT technology blog
MySQL Group Replication Tutorial: Building an Auto-Failover InnoDB Cluster
October 25, 2026
Security tutorial - IT technology blog
OpenSCAP Guide for Linux: Automated Scanning and CIS Benchmark Remediation
October 25, 2026
MySQL tutorial - IT technology blog
A Guide to Configuring Table Partitioning in MySQL: Boosting Large Table Performance with RANGE and LIST
October 25, 2026
Linux tutorial - IT technology blog
How to Install and Configure Fail2ban on Linux: Block SSH and Web Server Brute-Force Attacks
October 25, 2026
Fedora tutorial - IT technology blog
Configuring kdump on Fedora Server: Capturing Kernel Panics and Analyzing Crash Dumps
October 25, 2026
Artificial Intelligence tutorial - IT technology blog
Kokoro-TTS Setup and Usage Guide: Building an Offline AI Text-to-Speech System on Linux
October 25, 2026
Real-Time File Synchronization on CentOS Stream 9 with Lsyncd and Rsync: A Production-Grade Setup
October 25, 2026
Ubuntu tutorial - IT technology blog
How to Use Rclone on Ubuntu to Automate Data Backups to Google Drive, S3, and OneDrive
October 25, 2026
CentOS tutorial - IT technology blog
Installing and Configuring AIDE on CentOS Stream 9: File Integrity Monitoring and Tamper Detection
October 25, 2026
Monitoring tutorial - IT technology blog
How to Monitor HashiCorp Vault with Prometheus and Grafana: Tracking Token Leases, Request Latency, and Unseal Status
October 25, 2026
MySQL tutorial - IT technology blog
Posted inMySQL

ALTER TABLE on Large MySQL Tables Without Downtime: A Guide to pt-online-schema-change

Posted by By IT From Zero May 15, 2026
Don't let ALTER TABLE crash your system. Learn how to use pt-online-schema-change to modify large MySQL tables safely, smoothly, and without downtime.
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Virtualization tutorial - IT technology blog
Posted inVirtualization

Installing macOS on Linux with Docker-OSX: A “Shortcut” for High-Performance iOS App Development

Posted by By IT From Zero May 15, 2026
A lightning-fast way to install macOS on Linux using Docker-OSX. The ultimate solution for developers to build Xcode projects and test Safari with high performance without a physical Mac.
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Linux tutorial - IT technology blog
Posted inLinux

Linux Kiosk Mode with Openbox: Turn Old Computers into ‘Indestructible’ Information Stations

Posted by By IT From Zero May 15, 2026
Learn how to set up a professional Linux Kiosk Mode with Openbox. A solution to transform low-spec computers into stable, secure, and ultra-lightweight information stations.
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Virtualization tutorial - IT technology blog
Posted inVirtualization

Effortless KVM Management with Cockpit-machines: Say Goodbye to Bulky Virt-manager

Posted by By IT From Zero May 14, 2026
Forget Virt-manager—Cockpit-machines is the ultimate solution for managing KVM on Linux servers. Featuring a smooth web interface, it installs in 5 minutes and is extremely RAM-efficient.
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Security tutorial - IT technology blog
Posted inSecurity

Stop “Sneaky” Connections on Linux with OpenSnitch: A Powerful Application-Level Firewall

Posted by By IT From Zero May 14, 2026
Don't let apps leak your data without permission. Learn how to use OpenSnitch to control every network connection on Linux and protect your privacy.
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Fedora tutorial - IT technology blog
Posted inFedora

DNF History: The ‘Time Machine’ for Risk-Free Fedora System Tweaking

Posted by By IT From Zero May 14, 2026
Fedora system issues after an update? Don't worry, dnf history lets you rollback, undo, and manage your software installation history safely and quickly.
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VMware tutorial - IT technology blog
Posted inVMware

RBAC on VMware vCenter: Don’t Let Junior Admins Hold the “Life and Death” Power

Posted by By IT From Zero May 14, 2026
RBAC permission management on vCenter is a vital skill for protecting virtualized systems. This article shares how to set up Roles and Permissions based on real-world experience managing an 8-host cluster.
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Artificial Intelligence tutorial - IT technology blog
Posted inAI

Bringing Claude Code to CI/CD: Hands-Free Code Reviews and Automated Testing

Posted by By IT From Zero May 14, 2026
A guide to integrating Claude Code into CI/CD to automate code reviews, security audits, and unit tests. Save hours of coding and effectively optimize API costs.
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Security tutorial - IT technology blog
Posted inSecurity

SPF, DKIM, and DMARC: The ‘Atomic Trio’ for 100% Email Inbox Delivery

Posted by By IT From Zero May 14, 2026
Don't let your emails disappear into the Spam folder. Here is a detailed guide on configuring SPF, DKIM, and DMARC to secure your domain and enhance sender reputation for IT pros.
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Monitoring tutorial - IT technology blog
Posted inMonitoring

24/7 Internet Bandwidth Monitoring: Holding Your ISP Accountable with Prometheus and Grafana

Posted by By IT From Zero May 14, 2026
On a 300Mbps plan but still lagging? Here is a detailed guide on using Speedtest Exporter, Prometheus, and Grafana for 24/7 monitoring, with real-world tips for handling alert fatigue.
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