ITNotes - Page 61 of 83 - From Terminal to Cloud

Stop Wasting Hardware: Tuning Linux Kernel Parameters with sysctl

April 4, 2026

Is your server dropping connections despite low CPU usage? Learn how to tune Linux kernel parameters using sysctl to optimize networking, memory, and file limits for high-performance production environments.

Programming

Stop Fighting Python Logging: A Modern Guide to Loguru and Sentry

April 4, 2026

Upgrade your Python logging strategy. Learn how to use Loguru for clean, automated logs and Sentry for real-time error tracking in production environments.

HomeLab

Ditch the USB Drives: A Netboot.xyz Guide for the Ultimate HomeLab PXE Setup

April 3, 2026

Stop flashing USB sticks. Learn how to deploy Netboot.xyz with Docker and PXE boot to install any operating system over your HomeLab network in minutes.

Database

How to Read Execution Plans: Solving the ‘Slow Query’ Mystery in Postgres and MySQL

April 3, 2026

Is your SQL crawling? Stop guessing and start reading Execution Plans. This guide shows you how to use EXPLAIN in PostgreSQL and MySQL to pinpoint bottlenecks like sequential scans and manual file sorts.

Database

Database Monitoring with Prometheus & Grafana: A No-Nonsense Guide

April 3, 2026

Tired of 2 AM outages? Learn to build a professional database monitoring stack using Prometheus and Grafana. This guide covers exporter setup, critical metrics, and production-ready alerting.

Security

Hardening Ubuntu: Using AppArmor to Sandbox Applications

April 3, 2026

Secure your Ubuntu server with AppArmor. This guide walks you through creating custom profiles, using complain mode for testing, and enforcing kernel-level application sandboxing.

Security

Watching the Hackers: Building an SSH Honeypot with Cowrie

April 3, 2026

I ran an SSH honeypot for six months and captured 50GB of logs. Here is how you can use Cowrie to monitor real-world attackers and improve your Linux security.

Programming

TypeScript for Beginners: Stop Guessing and Start Writing Safer Code

April 3, 2026

Tired of 'undefined' errors? Learn how to transition from JavaScript to TypeScript with this practical guide on interfaces, union types, and strict configurations.

Networking

Benchmarking Linux Network Performance: A Practical Guide to iperf3 and mtr

April 3, 2026

Tired of vague network complaints? Learn to use iperf3 and mtr to pinpoint bottlenecks, measure throughput, and analyze packet loss like a pro.

HomeLab

Stop Juggling Scripts: Install Pterodactyl Panel on Ubuntu for Professional Game Hosting

April 3, 2026

Is manual game server management holding your HomeLab back? Learn how to deploy Pterodactyl on Ubuntu for professional, containerized game hosting.

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

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

Stop Wasting Hardware: Tuning Linux Kernel Parameters with sysctl

Stop Fighting Python Logging: A Modern Guide to Loguru and Sentry

Ditch the USB Drives: A Netboot.xyz Guide for the Ultimate HomeLab PXE Setup

How to Read Execution Plans: Solving the ‘Slow Query’ Mystery in Postgres and MySQL

Database Monitoring with Prometheus & Grafana: A No-Nonsense Guide

Hardening Ubuntu: Using AppArmor to Sandbox Applications

Watching the Hackers: Building an SSH Honeypot with Cowrie

TypeScript for Beginners: Stop Guessing and Start Writing Safer Code

Benchmarking Linux Network Performance: A Practical Guide to iperf3 and mtr

Stop Juggling Scripts: Install Pterodactyl Panel on Ubuntu for Professional Game Hosting