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Upgrading to Ubuntu Server 24.04 LTS: A Practical Guide to a Safe Finish

By admin May 6, 2026

A practical guide to upgrading Ubuntu Server 22.04 to 24.04 LTS. A safe 5-step process using Screen to prevent network drops and handle package conflicts for Sysadmins.

Artificial Intelligence tutorial - IT technology blog

Mastering NeMo Guardrails: Controlling Content and Eliminating LLM Hallucinations

By admin May 6, 2026

NeMo Guardrails is a leading solution for controlling LLM content, preventing prompt injection, and eliminating hallucinations in real-world AI applications.

VMware

VMware Site Recovery Manager (SRM) Setup Guide: An Automated ‘Lifesaver’ for vSphere

By admin May 6, 2026

Don't let infrastructure disasters keep you up at night. VMware Site Recovery Manager (SRM) automates Disaster Recovery, cutting RTO from hours to minutes. Check out this practical guide.

MySQL

MySQL Clone Plugin: How to Copy Hundreds of GBs in a Flash Instead of Waiting for mysqldump

By admin May 6, 2026

Forget mysqldump! A detailed guide on using MySQL Clone Plugin to copy data directly between servers at ultra-high speeds, safe for databases of hundreds of GBs.

Development

Building GraphQL APIs with Node.js and Apollo Server: From Schema to Mutation

By admin May 6, 2026

Learn how to build efficient GraphQL APIs with Node.js and Apollo Server through real-world examples. This guide compares REST vs. GraphQL and shares payload optimization tips.

Git

Forgejo Installation Guide: A Lightweight and More Secure Self-hosted Git Solution than Gitea

By admin May 6, 2026

A detailed guide on installing Forgejo—a lightweight and secure Gitea fork—using Docker Compose. Includes practical tips for optimizing Git workflows in small teams.

VMware

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.