ITNotes - Page 12 of 83 - From Terminal to Cloud

Locking Down SFTP: A Field Guide to Chroot Jails on Linux

May 24, 2026

Isolate SFTP users and prevent lateral movement. This production-ready guide walks you through OpenSSH Chroot Jails, strict permission mapping, and monitoring strategies.

Security

Static Malware Analysis with Ghidra: A Hands-on Guide for Linux

May 24, 2026

Learn how to use Ghidra on Linux for static malware analysis. This guide provides a practical workflow for reverse engineering ELF and PE binaries to uncover hidden threats.

DevOps

Ditch the Cloud: Self-Hosting a Lean DevOps Stack with Gitea and Actions

May 24, 2026

Take control of your DevOps data. This guide shows you how to deploy a high-performance Gitea instance and Gitea Actions runner using Docker Compose for private, low-cost CI/CD.

Database

Scaling PostgreSQL Beyond a Single Node: A Practical Citus Guide

May 24, 2026

Is your PostgreSQL database hitting its limits? Learn how to scale horizontally using Citus to distribute data across multiple nodes and run parallel queries for massive performance gains.

HomeLab

Old Gear, New Life: A 6-Month Review of My Proxmox HomeLab Cluster

May 24, 2026

I spent six months running a Proxmox cluster on repurposed Dell Optiplex micros. Here is the hardware audit, the configuration tweaks, and the monitoring tools that keep it running 24/7.

Security

Stop SSRF in Its Tracks: A Hardened Guide to API & Web Security

May 24, 2026

Is your server secretly attacking your internal network? Learn how to prevent SSRF vulnerabilities using Python IP validation, AWS IMDSv2, and network-level egress filtering.

Networking

Speed and Stability: Configuring MultiPath TCP (MPTCP) on Linux

May 24, 2026

Combine multiple network links for double the speed and 100% uptime. This guide shows you how to configure MultiPath TCP (MPTCP) on modern Linux systems using native kernel tools.

Programming

Building High-Performance Backend with Kotlin and Ktor: A Production-Ready Guide

May 24, 2026

Master high-performance backend development using Kotlin and Ktor. Learn to build non-blocking RESTful APIs with structured routing, JSON serialization, and efficient database integration.

Linux

Real-Time File System Monitoring with inotifywait and incron on Linux: Auto-Trigger Scripts on File Events

May 23, 2026

Learn how to use inotifywait and incron to monitor Linux filesystem changes in real time and automatically trigger shell scripts when files are created, modified, or deleted. Includes practical examples for upload processing, config reloading, and debouncing rapid events.

Linux

Mastering Linux initramfs: Custom Drivers and Boot Scripts

May 23, 2026

Don't let boot errors stop you. Learn how to inject drivers, kernel modules, and custom scripts into the Linux initramfs for both Debian and RHEL systems.

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

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

Shipping Cross-Platform: A Production-Grade Guide to Flutter and Dart

Self-Hosting Penpot on Docker: The Private, Open-Source Figma Alternative

Reboot Linux in Seconds: Using kexec to Skip BIOS and POST

Telepresence: Local Microservices Debugging Without the 10-Minute Rebuild

Stop Guessing: Use Flame Graphs to Pinpoint Linux CPU Bottlenecks

HTMX: Building Interactive Web Apps Without the JavaScript Fatigue

Ditch GRUB for systemd-boot: A Leaner, Faster Way to Boot Linux

Automating Prompt Optimization with DSPy: Declarative LLM Programming That Replaces Manual Prompt Engineering

Locking Down SFTP: A Field Guide to Chroot Jails on Linux

Static Malware Analysis with Ghidra: A Hands-on Guide for Linux

Ditch the Cloud: Self-Hosting a Lean DevOps Stack with Gitea and Actions

Scaling PostgreSQL Beyond a Single Node: A Practical Citus Guide

Old Gear, New Life: A 6-Month Review of My Proxmox HomeLab Cluster

Stop SSRF in Its Tracks: A Hardened Guide to API & Web Security

Speed and Stability: Configuring MultiPath TCP (MPTCP) on Linux

Building High-Performance Backend with Kotlin and Ktor: A Production-Ready Guide

Real-Time File System Monitoring with inotifywait and incron on Linux: Auto-Trigger Scripts on File Events

Mastering Linux initramfs: Custom Drivers and Boot Scripts