ITNotes - Page 31 of 35 - From Terminal to Cloud

Proxmox VE: The Free Virtualization Alternative to VMware You Should Be Running

March 9, 2026

Proxmox VE is a free, open-source hypervisor that combines KVM virtual machines and LXC containers in a single web interface — no license required. This guide covers installation, VM creation, snapshots, clustering, and GPU passthrough with real command examples.

HomeLab

VPS Providers Compared: AWS vs DigitalOcean vs Vultr vs Hetzner (2024 Guide)

March 9, 2026

Comparing AWS, DigitalOcean, Vultr, and Hetzner across price, performance, and real-world usability. Includes benchmarking scripts, Terraform examples, and a practical decision matrix to help you choose the right VPS provider for your project.

HomeLab

Self-Hosting Guide: Run Bitwarden, Gitea, and Uptime Kuma on Your Own Server

March 9, 2026

Set up Vaultwarden, Gitea, and Uptime Kuma on your own server using Docker Compose. No vendor lock-in, no monthly fees for tools you can run yourself — just your data, on your hardware. A practical starting point for developers who want real homelab experience beyond the tutorial level.

DevOps

How to Write an Efficient Dockerfile: Tips from Real-World Experience

March 9, 2026

Writing an efficient Dockerfile goes beyond just making it work — it directly impacts build speed, image size, and production security. This guide covers the practical tips I use daily: multi-stage builds, layer caching, minimal base images, and common mistakes to avoid.

Linux

Automated Backup with rsync and cron: Stop Losing Data the Hard Way

March 8, 2026

Manual backup routines break down under real workload pressure — not from laziness, but from how humans actually work. This guide covers how to pair rsync with cron for a reliable automated backup system on Linux, including incremental transfers, SSH remote sync, versioned copies, and a production-ready script with logging.

Linux

Bash Shell Scripting for Beginners: Automate Your Way Out of Production Chaos

March 8, 2026

A bash scripting guide built around real production problems: disk alerts at 2 AM, services going down, logs eating your storage. Learn variables, conditionals, loops, and functions through a working health check script you can actually deploy.

Linux

Linux Package Managers Compared: apt vs yum vs dnf vs pacman

March 8, 2026

apt, yum, dnf, and pacman all install software — but the commands, config files, and behaviors differ significantly across Linux distros. This guide covers installing, configuring, and monitoring packages on Debian, RHEL, Fedora, and Arch systems with practical side-by-side examples.

Linux

Apache Virtual Host Configuration: Host Multiple Websites on One Server

March 8, 2026

Learn how to configure Apache virtual hosts on Ubuntu 22.04 to host multiple websites on a single server. Covers installation, virtual host setup, HTTPS with Certbot, .htaccess rewrite rules, and practical production tips.

Claude AI Complete Guide: From API Setup to Production-Ready Integration

March 8, 2026

A practical walkthrough for integrating Claude AI into your applications — from API key setup and SDK installation to production configuration and monitoring. Includes Python code examples for streaming, multi-turn conversations, retry logic, and cost tracking.

Networking

How to Set Up OpenVPN Server on Ubuntu: A Practical Guide

March 8, 2026

Setting up OpenVPN on Ubuntu means building a PKI, configuring server certificates, and generating per-client .ovpn files. This guide covers each step with real commands and the practical details that documentation usually leaves out.

GPG for Linux: A Practical Guide to Encrypting Files and Signing Data

Taking Control of Linux PAM: A Practical Guide to System Authentication

Building GraphQL APIs with Python Strawberry and FastAPI: From Schema Design to Authentication

PostgreSQL High Availability on Kubernetes: A Hands-On Guide to CloudNativePG

Beyond ‘Copy-Paste’: Building a Bulletproof 3-2-1 HomeLab Backup with Restic

Stop Flying Blind: Real-Time Linux Server Monitoring with Netdata

GPU-Accelerated Docker: A Production Guide to Installing NVIDIA Container Toolkit on Ubuntu

Implementing Idempotency in Node.js REST APIs with Redis

Kasm Workspaces on Ubuntu: Stream Isolated Desktops to Any Browser

DIY Dynamic DNS with Cloudflare: No More 2 AM Remote Access Failures

Proxmox VE: The Free Virtualization Alternative to VMware You Should Be Running

Self-Hosting Guide: Run Bitwarden, Gitea, and Uptime Kuma on Your Own Server

How to Write an Efficient Dockerfile: Tips from Real-World Experience

Automated Backup with rsync and cron: Stop Losing Data the Hard Way

Bash Shell Scripting for Beginners: Automate Your Way Out of Production Chaos

Linux Package Managers Compared: apt vs yum vs dnf vs pacman

Apache Virtual Host Configuration: Host Multiple Websites on One Server

Claude AI Complete Guide: From API Setup to Production-Ready Integration

How to Set Up OpenVPN Server on Ubuntu: A Practical Guide