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Virtualization tutorial - IT technology blog

Site-to-Site VPN Between Two Proxmox VE Clusters via WireGuard: Fast, Lightweight, and Rock-Solid

By admin August 10, 2026

Forget OpenVPN! A detailed guide on setting up Site-to-Site VPN for Proxmox VE using WireGuard to achieve maximum speed and minimum latency.

Git

Manage Bugs Directly in the Terminal with git-bug: Fast, Lightweight, and Secure

By admin August 10, 2026

Bug management has never been this fast. Learn how to use git-bug to track issues directly in the Terminal, with offline support and absolute security.

Python

MicroPython on ESP32: “Lightning-Fast” IoT Programming for Software Developers

By admin August 10, 2026

Learn how to master the ESP32 using MicroPython. A guide from flashing firmware to building a real-time temperature monitoring Web Server for software developers.

Python

Upgrade Your Python CLI with Questionary: Stop Your Scripts from Crashing Due to User Input Errors

By admin August 10, 2026

Instead of using the crash-prone input() function, use Questionary to create professional Python CLI interfaces with powerful menus, checkboxes, and data validation.

Fedora

Mastering systemd-oomd on Fedora: Rescuing Your PC from RAM-Related Freezes

By admin August 10, 2026

No more system freezes on Fedora by mastering systemd-oomd. A detailed guide on configuring PSI, Swap limits, and protecting critical apps during RAM exhaustion.

Security

Mastering Cilium Tetragon: Monitoring and Blocking Runtime Attacks with eBPF

By admin August 9, 2026

A detailed guide on using Cilium Tetragon for monitoring and securing Linux Runtime based on eBPF technology. This article shares quick installation steps, how to write TracingPolicy, and real-world experience to protect servers from attacks.

Monitoring

Beszel Installation Guide: Monitor Dozens of Servers with Just 15MB of RAM

By admin August 9, 2026

Install Beszel - a lightweight multi-server monitoring solution with Docker Stats support. A perfect replacement for Netdata and Zabbix with minimal RAM usage.

Development

Goodbye ‘Ancient’ Swagger UI: A Guide to Integrating Scalar into Node.js Projects

By admin August 9, 2026

Forget Swagger UI; Scalar is the real deal for your Node.js projects. Modern interface, built-in API client, and lightning-fast search.

Security

Preventing RCE and Injection with OpenRASP: Protecting Web Apps from Within Without Code Changes

By admin August 9, 2026

Protect web applications from 0-day, RCE, and SQL Injection with OpenRASP. Detailed guide on installing the Java Agent without modifying source code.

Security

Setting Up a Tor Onion Service with Nginx: ‘Stealth’ Your Website on Linux

By admin August 9, 2026

A guide on setting up a Tor Onion Service with Nginx on Linux. Learn how to prevent IP leaks, secure headers, and apply OPSEC principles for a fully anonymous .onion website.