ITNotes - Page 81 of 119 - From Terminal to Cloud

Automating Kubernetes Secret Management with External Secrets Operator: Syncing AWS and Vault

April 22, 2026

Stop managing Kubernetes secrets manually. This guide shows you how to use External Secrets Operator to automatically sync sensitive data from AWS Secrets Manager and HashiCorp Vault directly into your cluster for a secure GitOps workflow.

DevOps

Progressive Delivery on Kubernetes with Argo Rollouts: Canary and Blue/Green Deployment Guide

April 21, 2026

Argo Rollouts brings precise traffic control to Kubernetes with canary splitting, blue/green switching, and automated Prometheus-based rollback. This guide covers setup, traffic routing with NGINX, AnalysisTemplates, and operational lessons for teams deploying under pressure.

Networking

Wake-on-LAN Over the Internet: Configure Your Router and Linux Server for Remote Boot

April 21, 2026

A practical guide to configuring Wake-on-LAN on Linux and your router so you can remotely power on any physical machine over the internet. Covers ethtool setup, systemd persistence, router port forwarding, and a full wake+connect script.

Networking

Centralize Your Network Auth: A Deep Dive into FreeRADIUS and LDAP

April 21, 2026

Ditch manual user management. Learn how to set up FreeRADIUS with LDAP to centralize your Wi-Fi and VPN authentication for a more secure, scalable network.

HomeLab

Self-Hosting Tailscale: A Guide to Deploying Headscale on Docker

April 21, 2026

Ditch the cloud and take control of your mesh VPN. This guide shows you how to deploy Headscale on Docker for a private, secure, and unlimited Tailscale network.

Database

MySQL High Availability: A Hands-On Guide to Galera Multi-Master Clusters

April 21, 2026

Build a resilient database backend using MariaDB Galera Cluster. This guide covers synchronous multi-master setup, quorum logic, and performance tuning for production environments.

Programming

Scaling Large-Scale Frontend Applications with React and Module Federation

April 21, 2026

Discover how to dismantle monolithic frontend debt using Webpack Module Federation. This guide walks you through building a scalable, multi-team React architecture from scratch.

Networking

Netplan on Ubuntu: A Pro’s Guide to YAML Networking

April 21, 2026

Ditch the old /etc/network/interfaces. Learn how to use Netplan on Ubuntu to configure static IPs, DHCP, and DNS using clean YAML syntax while avoiding common pitfalls.

Security

Kill the 2 AM Password Prompt: Auto-Unlock LUKS with TPM 2.0

April 21, 2026

Stop typing LUKS passphrases manually. This guide shows you how to use TPM 2.0 and Clevis to securely automate disk decryption on Linux, ensuring your servers reboot without intervention.

Speed Up Python with Numba JIT: Make Heavy Data Processing 100x Faster

CDK for Terraform (CDKTF) with Python: Deploy Cloud Resources Without Writing HCL

Clean Up Your Java Code: A Practical Guide to Vavr

Stop Deploying Broken Docker Images: A Guide to Container Structure Tests

Mastering Golang Memory Profiling: A Practical Guide with pprof

Stop Storing Secrets in Git: A Guide to 1Password Connect on Kubernetes

Building a Network Performance Testbed: High-Speed Testing with TRex on Linux

Stop Writing Boilerplate: A Guide to Python Dataclasses, Attrs, and Pydantic

Build Your Own Private 5G Network: A Hands-On Guide with Open5GS and srsRAN

Mastering Socket.IO in Node.js: Building Secure, Production-Ready Real-Time Apps

Automating Kubernetes Secret Management with External Secrets Operator: Syncing AWS and Vault

Progressive Delivery on Kubernetes with Argo Rollouts: Canary and Blue/Green Deployment Guide

Wake-on-LAN Over the Internet: Configure Your Router and Linux Server for Remote Boot

Centralize Your Network Auth: A Deep Dive into FreeRADIUS and LDAP

Self-Hosting Tailscale: A Guide to Deploying Headscale on Docker

MySQL High Availability: A Hands-On Guide to Galera Multi-Master Clusters

Scaling Large-Scale Frontend Applications with React and Module Federation

Netplan on Ubuntu: A Pro’s Guide to YAML Networking

Kill the 2 AM Password Prompt: Auto-Unlock LUKS with TPM 2.0