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Ubuntu tutorial - IT technology blog
Building Your Own Mail Server with Postfix and Dovecot on Ubuntu 22.04: Take Full Control of Your Mail Flow
July 25, 2026
CentOS tutorial - IT technology blog
CentOS 7 to AlmaLinux/Rocky Linux Upgrade Guide using ELevate: Fast, Efficient, No Reinstall Needed
July 25, 2026
VMware tutorial - IT technology blog
Eliminate ‘Noisy Neighbor’ Issues with VMware SIOC: Protecting Bandwidth for Critical VMs
July 25, 2026
Virtualization tutorial - IT technology blog
Handling IOMMU Groups with ACS Override Patch: The Ultimate GPU Passthrough Trick for Budget Motherboards
July 25, 2026
Virtualization tutorial - IT technology blog
Optimizing Proxmox: How to Create a ‘Gold Standard’ LXC Template for Mass Deployment in 30 Seconds
July 25, 2026
Ubuntu tutorial - IT technology blog
Optimizing PHP 8.3 on Ubuntu 24.04: Don’t Let Your Server Run Like a Snail
July 25, 2026
Python tutorial - IT technology blog
Mastering Python functools: Writing Better, Faster Code
July 25, 2026
Fedora tutorial - IT technology blog
Fixing SELinux Errors on Fedora for Good: Use setroubleshoot and audit2allow Instead of Disabling It
July 25, 2026
Fedora tutorial - IT technology blog
Build Your Own High-Performance, Low-Cost Git Server with Gitea on Fedora: Maximum Security with SELinux
July 25, 2026
Network tutorial - IT technology blog
Configuring Multi-WAN Failover on Linux: A “Never-Down” Internet Solution with Keepalived
July 24, 2026
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 admin 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 admin 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 admin 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 admin 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 admin 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 admin 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 admin 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 admin 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 admin 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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Artificial Intelligence tutorial - IT technology blog
Posted inAI

AI Agent for Server Log Monitoring: From On-call Nightmares to Smart Telegram Alerts

Posted by By admin May 14, 2026
Turn GBs of log files into focused Telegram alerts with an AI Agent. Learn how to use Python and Gemini API to filter noise, analyze server errors, and suggest instant fixes.
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