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Virtualization tutorial - IT technology blog

VirtualBox: Advanced Network Configuration – Shared Folders, VPN, and Isolated Environments for IT

By admin March 14, 2026

This article explores advanced VirtualBox network configurations, including shared folders, VPN setups, and creating isolated virtual environments for IT professionals.

Monitoring

Zabbix Installation Guide from A-Z: Build Your Own Professional Monitoring System

By admin March 13, 2026

I. Introduction to Zabbix and Why You Need It In today's IT landscape, ensuring the…

Network

Guide to Configuring SSH Tunnel: Local, Remote, and Dynamic Port Forwarding

By admin March 13, 2026

SSH Tunneling is not just a convenient tool, but also a powerful solution for flexible network security and access. Learn how to configure Local, Remote, and Dynamic Port Forwarding to overcome network limitations, protect data, and optimize daily tasks.

Virtualization

QEMU/KVM Installation and Configuration Guide on CentOS/RHEL: Optimizing Virtualization Performance

By admin March 13, 2026

KVM/QEMU on CentOS/RHEL is a high-performance virtualization solution, ideal for servers and homelabs. This article provides a detailed guide to installation, configuration, and performance optimization, sharing practical experience to help you master this platform from A to Z.

Database

How to Install and Configure PostgreSQL Streaming Replication: Real-time Data Synchronization between Primary and Standby

By admin March 13, 2026

Learn how to set up PostgreSQL Streaming Replication for High Availability and Disaster Recovery. A step-by-step guide to configuration and data synchronization between Primary and Standby.

MySQL

MySQL Server Security: Essential Steps to Protect Production Data

By admin March 13, 2026

MySQL server security is vital for protecting production data. This article compares security methods, from basic configuration to SSL/TLS implementation and firewalls. It provides detailed steps to ensure the safety of your database.

Artificial Intelligence tutorial - IT technology blog

Building a Multi-Platform AI Chatbot: Integrating Telegram, Slack, and Discord

By admin March 13, 2026

This article guides you through building a multi-platform AI chatbot, seamlessly integrating with Telegram, Slack, and Discord using Python. You'll learn about modular architecture, platform configuration, and practical deployment for an intelligent, time-saving, and performance-optimized chatbot.

Virtualization

Automate Virtual Machine Deployment on Proxmox/KVM with Cloud-Init: Create Templates and Customize on First Boot

By admin March 13, 2026

Discover Cloud-Init on Proxmox/KVM: The solution for automating virtual machine deployment and configuration from the first boot. Save time, reduce errors, and increase consistency for your homelab infrastructure.

Security

Optimizing Secure Management of Secrets, API Keys, and Credentials on Linux with HashiCorp Vault

By admin March 13, 2026

Managing secrets like API keys and credentials is a major challenge for many IT engineers. HashiCorp Vault offers a powerful solution to address this problem. This article guides you through installing, configuring, and using Vault on Linux, helping to maximize the protection of sensitive data.

Virtualization

How to Configure Nested Virtualization on Proxmox VE: Running Hypervisors (ESXi, KVM) Inside Virtual Machines for Complex Lab Setups

By admin March 12, 2026

Create complex virtual labs like vCenter, Kubernetes clusters with Nested Virtualization on Proxmox VE. This article provides a step-by-step guide to enabling this feature, allowing you to run ESXi or KVM inside virtual machines to maximize existing hardware resources.