ITNotes - Page 38 of 119 - From Terminal to Cloud

Stop Guessing: Use Flame Graphs to Pinpoint Linux CPU Bottlenecks

June 4, 2026

Ditch the guesswork. Learn how to use perf and Flame Graphs to visualize Linux CPU bottlenecks and fix performance issues with precision.

Programming

HTMX: Building Interactive Web Apps Without the JavaScript Fatigue

June 4, 2026

Is your JavaScript bundle out of control? Discover how HTMX simplifies web development by using HTML attributes to handle AJAX and state, allowing you to build fast, interactive apps with minimal code.

Linux

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

June 4, 2026

Tired of slow boot times and complex GRUB configurations? Learn how to switch to systemd-boot, a lightweight and modern UEFI boot manager that simplifies your setup and speeds up your Linux system.

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

June 3, 2026

DSPy lets you define LLM pipelines declaratively — specifying inputs and outputs instead of writing prompts by hand — then automatically optimizes them using labeled examples. This guide covers the trade-offs versus manual prompt engineering and walks through a full working implementation with code examples.

Networking

Long-Term Network Bandwidth Monitoring with vnStat on Linux: Track, Analyze, and Export Usage Reports

June 3, 2026

vnStat is a lightweight Linux daemon that tracks network bandwidth over time — no packet capture, minimal overhead. This guide walks through installation, daemon setup, querying daily/monthly/yearly reports, and exporting data to JSON for scripts and alerts.

Linux

Debugging Linux Application Crashes with Core Dump and GDB: systemd-coredump Setup Guide

June 3, 2026

When a Linux application crashes in production, the difference between a 20-minute fix and a 3-hour investigation often comes down to whether you captured a core dump. This guide compares ulimit, systemd-coredump, and ABRT, then walks through configuring systemd-coredump and using GDB with coredumpctl for real post-crash analysis.

Security

Hardening Your CI/CD Pipeline: A Practical Guide to SCA, SAST, and DAST

June 3, 2026

Catch vulnerabilities before they reach production. This guide shows you how to integrate SCA, SAST, and DAST into your CI/CD pipeline for a 'Shift Left' security approach.

DevOps

Deploying SpinKube on Kubernetes: Running Ultra-Lightweight WebAssembly Workloads

June 3, 2026

Ditch the overhead of heavy containers. Learn how to deploy SpinKube on Kubernetes to run Wasm workloads with sub-5ms startup times and minimal memory footprints.

HomeLab

Stop Paying for YNAB: Self-Host Actual Budget on Docker for Free

June 3, 2026

Ditch the $100/year YNAB subscription. Learn how to host Actual Budget on your own hardware using Docker for a private, secure, and free budgeting experience.

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

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

Long-Term Network Bandwidth Monitoring with vnStat on Linux: Track, Analyze, and Export Usage Reports

Debugging Linux Application Crashes with Core Dump and GDB: systemd-coredump Setup Guide

Hardening Your CI/CD Pipeline: A Practical Guide to SCA, SAST, and DAST

Deploying SpinKube on Kubernetes: Running Ultra-Lightweight WebAssembly Workloads

Stop Paying for YNAB: Self-Host Actual Budget on Docker for Free