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Virtualization tutorial - IT technology blog

Configuring Looking Glass on KVM: The Ultimate Low-Latency Solution for GPU Passthrough

By admin June 22, 2026

Looking Glass is the ultimate solution for sharing a GPU between a Windows VM and a Linux host with sub-1ms latency using Inter-VM Shared Memory (IVSHMEM).

Linux

Advanced find Command on Linux: Filter Files by Multiple Criteria and Automate Bulk Operations with -exec and xargs

By admin June 10, 2026

The advanced Linux find command lets you filter files by time, size, permissions, and multiple combined conditions. Paired with -exec or xargs, you can automate batch operations on hundreds of files with a single command — from clearing server logs to running security checks.

Virtualization

Mount and Edit qcow2, vmdk Files Directly on Linux Using NBD: Fast, Simple, No VM Boot Required

By admin June 4, 2026

Forget booting rescue ISOs! This guide shows you how to mount qcow2 and vmdk files directly to a Linux host using NBD to fix configs and recover VM data in minutes.

Fedora

Configuring Snapper on Fedora: The Ultimate “Undo Button” Before DNF Updates

By admin May 27, 2026

Forget the fear of system failure after DNF updates. A detailed guide on configuring Snapper on Fedora to automatically create Btrfs snapshots and quickly rollback.

Virtualization

As Fast as Physical Drives: Configuring KVM Shared Folders with virtiofs

By admin May 26, 2026

A guide to configuring virtiofs for KVM virtual machines to achieve near-native file sharing speeds. The perfect alternative to 9p and NFS.

Fedora

Mastering Toolbox on Fedora: How to Create Isolated and Professional Dev Environments

By admin May 25, 2026

Toolbox is a solution that helps developers create isolated development environments on Fedora quickly. Learn how to keep your system clean and avoid library conflicts.

Fedora

Seamlessly Replacing Fedora Packages with dnf swap and dnf shell

By admin May 19, 2026

Learn how to use dnf swap and dnf shell to replace packages, switch from MariaDB to MySQL, or install full FFmpeg on Fedora without dependency conflicts.

Fedora

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

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.

Docker

Skopeo: Lightning-Fast Docker Image Copying Between Registries Without ‘Pulling’

By admin May 13, 2026

Forget manual Pull-Tag-Push. Skopeo lets you copy, inspect, and sync Docker images directly between registries instantly without wasting disk space.

Fedora

Mastering Fedora: Installing Multimedia Codecs and NVIDIA Drivers Like a Pro

By admin April 30, 2026

Fix video playback issues and lag on Fedora. A guide to installing Multimedia Codecs and NVIDIA Drivers from RPM Fusion to optimize GPU performance and fix Secure Boot issues.