What is Block-Oriented Network Simulator (BONeS) 🦴?
📜 Before many modern networking tools existed, engineers were already using a graphical software environment called Block-Oriented Network Simulator (…
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How Does Traffic Actually Reach Your Pods? Kubernetes Services & kube-proxy Explained
Your backend Pod just crashed. Kubernetes created a new Pod with a completely different IP address. Yet your application didn't notice anything change…
Building an AI-Resistant Post-Quantum VPN in Rust 🦀 (With an Open Crypto Challenge)
Hello Dev.to! 👋 I'm the architect of an experimental post-quantum VPN protocol called QCRA (Quantum-Chess Routing Architecture). It’s written entirely…
Simulating 2G to build an offline-first sync engine in Rust for rural clinics
hey dev.to, so I am Mathéo, a 2nd year CS student at EPITECH Nancy (France). I want to share a project I have been building for the last few months: Z…
HLD Fundamentals #1: Network Protocols
Network Protocols Network protocols define how computers communicate over a network. Whether you're opening Instagram, sending a WhatsApp message, wat…
How to Configure Azure Virtual Networks and Subnets for Virtual Machine Deployment
Introduction Virtual networks are the foundation of communication in Microsoft Azure. They enable Azure resources to securely communicate with each ot…
Multi-VPS Distributed n8n Cluster on Ubuntu 24.04 with an IPIP Tunnel
When running automation tools like n8n for personal or production workflows, you quickly run into resource walls if you stick to the default configura…
Why I Stopped Paying for Tunnels and Built My Own (in 500 Lines of Rust).
Why I Stopped Paying for Tunnels and Built My Own (in 500 Lines of Rust) We’ve all been there: you’re working on a project, you need to show it to a c…
Stop the Leak: How I Built a Zero-Trust Kill Switch for Windows Using Only PowerShell
The Problem If you've ever audited your Windows network traffic during a boot-up sequence, you know the truth: there's a "blind spot." Between the mom…
Kubernetes Networking Explained: Pods, Services, Ingress, and Network Policies
Kubernetes networking is one of the most misunderstood parts of running containerized workloads. A pod can reach another pod by IP — but why does that…
Making Star Stable 1 Multiplayer
Introduction For those who aren't familiar with the Star Stable titles, they are split into sections: Star Stable [1, 2, 3, 4] - Singleplayer games St…
OSI Model in the Real World: From Your Browser to the Server
The OSI Model can feel theoretical in the classroom. But it describes something that happens billions of times every second all around you. Let's trac…
Why standard speed tests aren't enough (and why I open-sourced my own iOS network auditor)
If you've ever dealt with real time pipelines, you know the frustration: severe jitter or micro disconnections completely ruin the experience, but sta…
HTTP Headers Every Developer Should Know (2026)
HTTP Headers Every Developer Should Know (2026) Headers are the hidden conversation between client and server. Understanding them makes you better at …
BGP Knowledge for Indie Hackers: Is It Really Necessary?
The world of indie hackers typically demands deep knowledge in areas like software development, product management, and marketing. When you're trying …
My Struggles as a Software Engineer in 2026
This post is adapted from my YouTube vlog, " My Struggles as a Software Engineer in 2026! " I started my journey to become a software engineer two yea…
05/20: TCP/IP vs OSI Model: The Ultimate Comparison
The Question Every Networking Student Eventually Asks After learning the OSI Model, most students discover something surprising: The internet doesn't …
800G to 400G Breakout: How to Scale 400G Networks with 800G Ports
How do you scale your network from 400G to 800G—without replacing your entire infrastructure? This is the exact challenge many AI data centers are fac…
C# Networking Deep Dive with io_uring part 5 - Threadpool Rant
Part 5 was going to be about integrating on Kestrel, instead this is going to be a rant about io_uring and threadpool. This story doesn't begin with i…
Why is VLAN Segmentation Overhyped in Small Networks?
Every new system or network engineer in the industry often starts by segmenting the existing network into slices, all in the name of "securing" it. In…
I built a Redis clone in C: From blocking I/O to epoll to crash safe persistence
I had been hearing about sockets, TCP connections, and networking for years without truly understanding what any of it meant at the code level. Buildi…
Zero-Install Tunneling in 2026: The Developer's Complete Guide to Agentless Localhost Proxies
IT InstaTunnel Team Published by our engineering team Zero-Install Tunneling in 2026: The Developer's Complete Guide to Agentless Localhost Proxies Ho…
Introduction to Amazon Route 53: The Cloud DNS That Powers Global Applications
Ever spent 3 hours debugging why your new SaaS launch is showing a 404 for half your global users, only to realize you messed up a DNS record update t…
The Hidden Life of a Container: A Complete Lifecycle
The anatomy of a container tells you what the walls are made of. This article tells you when they go up, what happens inside them, and what the kernel…
Visual Guide to TCP at the Transport Layer
I built a detailed visual diagrams for the Transmission Control Protocol (TCP) — one of the core protocols powering the internet, that operates at the…
Generative algorithm using human interpretation
Hi everyone! I released a participatory generative art collection where the algorithm's inputs are human interpretations of a daily cultural prompt ra…
Net-Zero Infrastructure: Implementing Solar-Scheduled Tunnel Egress
IT InstaTunnel Team Published by our engineering team Net-Zero Infrastructure: Implementing Solar-Scheduled Tunnel Egress Net-Zero Infrastructure: Imp…
How the Internet Actually Works: Understanding Client-Server Architecture with Real Code
How the Internet Actually Works: Understanding Client-Server Architecture with Real Code The Big Picture: What Happens When You Visit a Website? Every…
I Keep Forgetting Subnet Math — Here's the Cheat Sheet I Actually Use
I have been writing backend code for years and I still cannot tell you, off the top of my head, how many usable hosts are in a /22 . Every time I open…
DOMINI Suite: how I built two OSINT tools to analyze domains and IPs from scratch
When I was assigned an OSINT practice project, I knew from the start that I wanted to build something using free tools — no paid APIs, no services wit…