ITNotes - Page 58 of 84 - From Terminal to Cloud

Extract and Process PDF Tables with Docling for RAG Systems

April 8, 2026

After 6 months of using Docling in production for PDF-heavy RAG systems, I share how to extract tables properly, chunk them intelligently, and index them for accurate retrieval. Covers quick start, pipeline setup, and hard-won practical tips.

AI-Powered Test Automation: Building Resilient Playwright Scripts with LLMs

April 7, 2026

Tired of fixing broken CSS selectors? Learn how to use GPT-4o and Playwright to build self-healing test suites that adapt to UI changes automatically.

HomeLab

Build Your Own Private CA with Step-ca: Stop Ignoring SSL Warnings in Your HomeLab

April 7, 2026

Tired of SSL warnings in your HomeLab? This guide shows you how to build a Private CA using Step-ca to automate internal certificates without internet access.

DevOps

Policy as Code on Kubernetes with Kyverno: Automate Config and Security Checks

April 7, 2026

Learn how to enforce Kubernetes security and configuration policies automatically using Kyverno. This guide compares Policy as Code approaches, covers a production-ready Kyverno setup, and walks through real policy examples — starting safe with audit mode before enforcing.

DevOps

Infrastructure as Code with Pulumi and TypeScript: Manage Cloud Resources Like Real Code

April 7, 2026

Pulumi lets you define cloud infrastructure using TypeScript instead of YAML or HCL — giving you loops, types, unit tests, and reusable components. This guide walks through installing Pulumi, writing your first AWS resources in TypeScript, managing multiple environment stacks, and verifying deployments with previews and stack outputs.

Security

Hardening Linux: A Practical Guide to ClamAV and Rkhunter

April 7, 2026

Secure your Linux server against malware and hidden backdoors. This guide walks you through setting up ClamAV and Rkhunter, automating scans, and managing system integrity.

Linux

Mastering ZFS on Linux: A Practical Guide to Advanced Storage

April 7, 2026

Ditch legacy partitions for ZFS. Learn how to install OpenZFS, create mirrored storage pools, and use LZ4 compression and snapshots to protect your Linux data.

Linux

Linux Time Sync: Why Chrony is the Modern Standard Over NTP

April 7, 2026

Is your server time drifting? Learn why Chrony has replaced NTP as the standard for Linux time synchronization and how to configure it for high-accuracy production environments.

Linux

Stop Grepping Dead Text: Modern Linux Log Analysis with Journalctl

April 7, 2026

Ditch the slow text-based grep workflow. Learn how to use journalctl to filter logs by time, service, and priority while keeping your disk usage under control.

Linux

Fix GRUB: A Practical Guide to Restoring Linux Systems via Live USB

April 6, 2026

Recover your Linux system from GRUB boot errors using a Live USB. This guide provides a clear, step-by-step workflow for using chroot to repair both UEFI and BIOS systems.

Mastering Prometheus Alertmanager: Routing, Grouping, Inhibition, and Smart Alert Delivery to Telegram and PagerDuty

Securing IoT Devices at Home and in Your HomeLab: VLAN Segmentation, Firmware Monitoring, and Blocking Suspicious Connections

Mastering Protocol Buffers: Schema-first API Design for Multi-language Projects

Deploy FerretDB on Docker: MongoDB-Compatible Open Source Database Built on PostgreSQL

Practical Web Security: Hunting XSS, SQLi, and IDOR with Burp Suite Community

Deploy OpenCTI on Docker: Build Your Own Threat Intelligence Lab

Beyond Boolean Soup: Architecting Robust React Logic with XState

Why Is My Linux Load Average High Despite Low CPU Usage?

Beyond APT: A Field Guide to Snap, Flatpak, and AppImage

Native MySQL High Availability: A Practical Guide to InnoDB Cluster and Router

Extract and Process PDF Tables with Docling for RAG Systems

AI-Powered Test Automation: Building Resilient Playwright Scripts with LLMs

Build Your Own Private CA with Step-ca: Stop Ignoring SSL Warnings in Your HomeLab

Hardening Linux: A Practical Guide to ClamAV and Rkhunter

Mastering ZFS on Linux: A Practical Guide to Advanced Storage

Linux Time Sync: Why Chrony is the Modern Standard Over NTP

Stop Grepping Dead Text: Modern Linux Log Analysis with Journalctl

Fix GRUB: A Practical Guide to Restoring Linux Systems via Live USB