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Virtualization tutorial - IT technology blog

Configuring TRIM/UNMAP for KVM/Proxmox: Reclaiming ‘Occupied’ Disk Space

By admin August 12, 2026

Stop virtual machine disks from bloating unnecessarily. Detailed guide on configuring TRIM/UNMAP for KVM/Proxmox to automatically reclaim physical space when deleting files.

Linux

Installing Homebrew on Linux: Manage the Latest CLI Tools Without Root Access

By admin August 11, 2026

Installing Homebrew on Linux gives you access to the latest CLI tools (gh, jq, fzf) without needing sudo. A lifesaver for Sysadmins working on restricted servers.

MySQL

Rescuing MySQL Data: A Hands-On Guide to Handling InnoDB Corruption

By admin June 28, 2026

MySQL crashed due to InnoDB corruption? Don't panic. Follow this 5-step process using innodb_force_recovery to safely and efficiently recover your data.

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.

Fedora

Fedora Server: 6 Things to Do Right Away for a Clean and Secure Server

By admin June 16, 2026

Don't leave your Fedora Server at default settings. This 6-step guide covers SSH hardening, Firewalld, zRAM, and SELinux to keep your system running smoothly and securely.