admin – Page 14 – ITFROMZERO

VMDK Shrinking Masterclass: Reclaim Hundreds of GBs for VMware ESXi and Workstation

By admin May 5, 2026

Detailed guide on how to shrink VMDK files in VMware Workstation and ESXi using SDelete, vmkfstools, and dd to reclaim hundreds of gigabytes of disk space.

VMware

Deploying Kubernetes on vSphere with VMware Tanzu: Turning Virtualization into Professional Container Infrastructure

By admin May 5, 2026

A detailed guide on deploying Kubernetes on vSphere using VMware Tanzu. Sharing practical experience on network configuration, storage, and effective cluster management for enterprises.

Centos

Installing Apache Tomcat on CentOS Stream 9: A Real-World Production Guide

By admin May 5, 2026

A detailed guide on installing Apache Tomcat 10 on CentOS Stream 9. Includes practical experience on JVM RAM optimization, user security, and production-ready Systemd configuration.

Database

Database Encryption: Don’t Leave Your Data Exposed with pgcrypto and AES_ENCRYPT

By admin May 5, 2026

Don't let user data leak in plain-text. Learn how to use pgcrypto and AES_ENCRYPT to encrypt sensitive data according to modern security standards.

Development

Why I Chose Drizzle ORM Over Prisma for a Real-World TypeScript Project

By admin May 5, 2026

Drizzle ORM is becoming a top choice for high-performance TypeScript projects. This article shares real-world experiences, compares it with Prisma, and provides an A-Z setup guide.

Ubuntu

Installing MicroK8s on Ubuntu: A Lightweight Kubernetes Solution for Dev and Lab Environments

By admin May 5, 2026

Installing Kubernetes on Ubuntu has never been easier thanks to MicroK8s. This guide covers everything from installation and add-on configuration to troubleshooting firewall issues.

Database

Build Your Own Backend-as-a-Service with Self-hosted Supabase via Docker

By admin May 5, 2026

A guide to setting up self-hosted Supabase using Docker as a Firebase alternative. Includes tips on configuring PostgreSQL, SMTP, and RAM optimization for VPS.

Artificial Intelligence tutorial - IT technology blog

Optimizing AI Systems with DSPy: It’s Time to Stop Manual Prompt Engineering

By admin May 5, 2026

Stop wasting time on manual prompt engineering. Learn how DSPy lets you program LLM logic and automatically boost performance from 65% to 88% using real data.

Virtualization

Optimizing Proxmox VE Storage: Connecting TrueNAS via iSCSI and NFS Like a Pro

By admin May 5, 2026

A detailed guide on connecting Proxmox VE to TrueNAS via iSCSI and NFS. The optimal solution for building centralized storage and supporting High Availability for VMs.

Docker

Docker Containers Shutting Down Slowly and Zombie Process Errors: A Complete Fix with Tini

By admin May 5, 2026

Docker containers hanging during shutdown? Discover how to use Tini to resolve Zombie Processes and Signal Handling, making your apps more stable and professional.