ITNotes - Page 30 of 35 - From Terminal to Cloud

Linux Distro Comparison: Ubuntu vs CentOS vs Debian vs Arch

March 10, 2026

Navigating Linux distributions can be tough, especially when critical deployments are on the line. This guide compares Ubuntu, CentOS, Debian, and Arch, providing clear insights into their strengths and weaknesses. Learn which distro best suits your production servers, development environments, or personal use, complete with practical setup examples and commands.

Security

How I Detect and Prevent Brute-Force Attacks (A 6-Month Review)

March 10, 2026

A midnight brute-force attack forced me to get serious about server security. For the last six months, a layered strategy using Fail2ban and SSH keys has kept my systems secure and silent. This guide details my practical, battle-tested setup so you can do the same.

Security

Self-Hosted Password Management: A Guide to Vaultwarden

March 10, 2026

Tired of trusting your passwords to cloud services? This guide shows you how to take back control by setting up a secure, self-hosted password manager with Vaultwarden and Docker. Follow these practical steps for installation, configuration, and essential maintenance.

3 Free AI Tools to Sharpen Your Developer Workflow in 2026

March 10, 2026

Stop wasting time on repetitive developer tasks. This guide introduces three practical, free AI tools that can automate shell command generation, documentation writing, and even placeholder image creation, letting you focus on what truly matters.

DevOps

Self-Host Nextcloud on a VPS: A SysAdmin’s No-Nonsense Guide

March 10, 2026

Stop relying on third-party cloud storage. This guide walks you through setting up your own secure Nextcloud instance on a Virtual Private Server, from a 5-minute Docker start to a full manual installation and hardening.

DevOps

A Practical Guide to Your First CI/CD Pipeline with GitLab CI

March 10, 2026

Stop deploying code manually. Learn how to automate your builds, tests, and deployments by setting up a practical CI/CD pipeline with GitLab CI, from installing a runner to configuring your first .gitlab-ci.yml file.

Programming

Redis Data Caching: A Beginner’s Guide to Speeding Up Your Application

March 9, 2026

Struggling with a slow application? Learn how to implement Redis for data caching. This guide walks you through the concepts, setup, and a practical Python example to significantly boost your app's performance.

Networking

A Practical Guide to Configuring a Linux Firewall: iptables vs. nftables

March 9, 2026

Secure your new Linux server by setting up a firewall. This guide explains why a firewall is essential, compares the classic iptables with the modern nftables, and provides a production-ready nftables configuration to get you started.

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

Linux Distro Comparison: Ubuntu vs CentOS vs Debian vs Arch

How I Detect and Prevent Brute-Force Attacks (A 6-Month Review)

Self-Hosted Password Management: A Guide to Vaultwarden

3 Free AI Tools to Sharpen Your Developer Workflow in 2026

Self-Host Nextcloud on a VPS: A SysAdmin’s No-Nonsense Guide

A Practical Guide to Your First CI/CD Pipeline with GitLab CI

Redis Data Caching: A Beginner’s Guide to Speeding Up Your Application

A Practical Guide to Configuring a Linux Firewall: iptables vs. nftables