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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).

Centos

Mastering LVM on CentOS Stream 9: A Flexible Storage Management Solution for Sysadmins

By admin June 21, 2026

Don't let your server crash due to disk space issues. Here is a detailed guide on configuring LVM on CentOS Stream 9 for flexible storage management and zero-downtime expansion.

Python

Accelerating Microservices: Why I Switched from REST to gRPC with Python

By admin June 21, 2026

gRPC helps reduce payload by 60% and optimizes Microservices latency compared to REST API. This article shares a practical guide with Python and hard-earned lessons from 6 months of production deployment.

MySQL

MySQL Isolation Levels: Don’t Let Transactions Ruin Your Data

By admin June 21, 2026

Dirty Read, Non-repeatable Read, and Phantom Read are classic database errors. Learn how MySQL uses four Isolation levels to protect your data.

VMware

Speed Up VMware VMs: Switching to Virtual NVMe to Unleash SSD Performance

By admin June 21, 2026

Don't let legacy controllers slow down your SSD. A detailed guide on switching to Virtual NVMe on VMware to reduce latency and boost IOPS for Windows/Linux VMs.

VMware

Configuring VMware vSphere Fault Tolerance (FT): Achieving Zero Downtime for Mission-Critical Systems

By admin June 21, 2026

A detailed guide to configuring VMware vSphere Fault Tolerance (FT). Learn how to achieve Zero Downtime, hardware requirements, and practical tips to protect your most critical systems.

Virtualization

Deploy a VyOS Virtual Router on Proxmox/KVM: Firewall, NAT, and Site-to-Site VPN from A to Z

By admin June 20, 2026

A hands-on guide to deploying a VyOS virtual router on Proxmox or KVM, covering stateful zone-based firewall, NAT masquerade, port forwarding, and IPsec IKEv2 Site-to-Site VPN. Follows a practical workflow from installation to a production-ready lab network.

VMware

Configuring vCenter Server High Availability (vCenter HA): Eliminating the Single Point of Failure in Your vSphere Environment

By admin June 20, 2026

A step-by-step guide to configuring vCenter Server High Availability (vCenter HA) on VCSA 8.0, covering the Active-Passive-Witness architecture, HA network configuration, failover testing, and practical operational tips from a production environment. Eliminate the single point of failure in your vSphere management layer with automatic failover in 4–8 minutes.

Centos

How to Use sosreport on CentOS Stream 9: Collect and Analyze System Information for Professional Troubleshooting

By admin June 20, 2026

sosreport is Red Hat's official tool for collecting complete system information with a single command, replacing the need to run dozens of manual commands every time an incident occurs. This article compares different approaches to information gathering, weighs their pros and cons, and walks through a practical sosreport deployment on CentOS Stream 9 — including a script you can integrate directly into your incident response workflow.

Network

Configuring iSCSI Multipathing on Linux: Maximize Bandwidth and SAN Connection Redundancy

By admin June 20, 2026

A complete guide to configuring iSCSI Multipathing on Linux, from basic setup to advanced tuning: establish multiple parallel connections to SAN storage to increase bandwidth and ensure redundancy when a path fails. Covers load balancing configuration, jumbo frames, real-world failover testing, and troubleshooting.