ITNotes - Page 52 of 119 - From Terminal to Cloud

Networking tutorial - IT technology blog

Stop Using ifconfig: A Guide to Professional Networking with nmcli

May 21, 2026

Ditch deprecated tools like ifconfig. Learn how to use nmcli for professional Linux networking, including static IP setup, DNS management, and SSH safety tips.

Database

Optimistic Locking vs Pessimistic Locking: Handling Concurrent Database Access in Real Applications

May 20, 2026

After six months of handling race conditions in a production e-commerce app, here's a practical breakdown of optimistic vs pessimistic locking — when to use each, the real trade-offs, and working Python/PostgreSQL code you can drop into your project.

Security

npm and pip Supply Chain Security: Detecting Dependency Confusion and Typosquatting Attacks

May 20, 2026

Dependency confusion and typosquatting are two of the most underestimated supply chain threats targeting npm and pip ecosystems. This guide covers practical detection techniques, lockfile hardening, registry configuration, and CI/CD integration to protect your builds from malicious package injection.

Programming

Go Generics Explained: Write Flexible, Reusable Code and Build Shared Libraries

May 20, 2026

Go generics, introduced in 1.18 (March 2022), solve the long-standing problem of code duplication in statically typed Go. This tutorial covers type parameters, constraints, the tilde operator, and practical examples — including a generic Set, Filter function, and TTL cache — showing how to build reusable shared libraries without sacrificing type safety.

Database

Database Testing with pgTAP in PostgreSQL: A Guide to Unit Testing Functions, Triggers, and Schema

May 20, 2026

Learn how to use pgTAP to write native unit tests for PostgreSQL. This guide covers testing database schema, functions, and triggers to ensure your data logic remains robust and bug-free.

HomeLab

Ditch the Cloud Key: Hosting the UniFi Network Application on Docker

May 20, 2026

Ditch the expensive Cloud Key. This guide shows you how to deploy the UniFi Network Application on Docker using a stable MongoDB 7.0 backend.

DevOps

Deploying Containerized Apps to VPS with Kamal 2: Zero-Downtime without the K8s Tax

May 20, 2026

Learn how to use Kamal 2 to deploy Dockerized applications to any VPS with zero downtime. This guide covers configuration, Kamal Proxy, and automated workflows without the complexity of Kubernetes.

Building Reliable AI Agents with Smolagents: A Shift to Code-Centric Logic

May 20, 2026

Move beyond brittle JSON tool-calling. This guide shows you how to build autonomous AI agents with smolagents that write and execute Python code to solve complex tasks.

Programming

Ditch Pip and Poetry: Why uv is the Only Python Tool You Need

May 20, 2026

uv is the high-performance Python tool written in Rust that is making pip and Poetry obsolete. Learn how to simplify your workflow and slash your CI/CD build times.

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 Using ifconfig: A Guide to Professional Networking with nmcli

Optimistic Locking vs Pessimistic Locking: Handling Concurrent Database Access in Real Applications

npm and pip Supply Chain Security: Detecting Dependency Confusion and Typosquatting Attacks

Go Generics Explained: Write Flexible, Reusable Code and Build Shared Libraries

Database Testing with pgTAP in PostgreSQL: A Guide to Unit Testing Functions, Triggers, and Schema

Ditch the Cloud Key: Hosting the UniFi Network Application on Docker

Deploying Containerized Apps to VPS with Kamal 2: Zero-Downtime without the K8s Tax

Building Reliable AI Agents with Smolagents: A Shift to Code-Centric Logic

Ditch Pip and Poetry: Why uv is the Only Python Tool You Need