admin, Author at ITNotes

Stop Pulling from the Internet: A Guide to Centralized Artifact Management with Nexus

April 4, 2026

Is your CI/CD pipeline vulnerable to external registry outages? Learn how to use Sonatype Nexus to cache NPM packages, host private Maven JARs, and run a local Docker registry for faster, more secure builds.

Database

Stop Guessing, Start Measuring: Stress Testing MySQL and PostgreSQL with sysbench

April 4, 2026

Stop guessing your database capacity. Learn how to use sysbench to run professional stress tests on MySQL and PostgreSQL, and how to interpret TPS and 95th percentile latency.

Linux

Advanced Linux Debugging: Hunting Silent Bugs with strace and ltrace

April 4, 2026

Master strace and ltrace to solve Linux application hangs and performance issues. Learn how to track syscalls, library calls, and identify bottlenecks with real-world examples.

HomeLab

Scaling Your HomeLab: Nextcloud with MinIO Object Storage

April 4, 2026

Upgrade your HomeLab with a production-grade private cloud. Learn how to use Nextcloud with MinIO as primary S3 storage for better performance and easier backups.

Linux

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.