Building a C++ HTTP Server from Scratch (Part 1): Setting Up TCP Sockets
Introduction In this series I will be going through how to build an HTTP Server from scratch in C++ using POSIX APIs, and actually have it serve a web…
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DNS Round-Robin: The Cheapest Load Balancer Is Three A Records and a Rotating Answer
Originally published at https://blog.pathvector.dev/protocol-lab-dnsrr-41/ — part of the free Protocol Lab series. This post is part of Protocol Lab ,…
QUIC-Based NAT Traversal: How PUNCH_ME_NOW Frames Are Standardizing Hole Punching
TL;DR: NAT traversal has historically relied on STUN/TURN/ICE running as an external signalling layer bolted onto whatever transport protocol you choo…
A small C++ library for sending structured commands and telemetry between devices — no schema files, just add your parameters and serialize
If you've ever tried to build a simple command/telemetry protocol between a PC and a fleet of SDR receivers, sensors, or embedded devices, you know th…
cfzt: как я обернул Zero Trust Cloudflare Tunnel в одну команду и зачем туда пришлось добавить вотчдог для QUIC
В домашней инфраструктуре у меня крутится десяток сервисов: Grafana, Zabbix, n8n, Navidrome, ollama, БД, пара дашбордов и тестовых API. Кажд…
Stage 1.6 — Network Devices
From Zero to Cybersecurity Professional | Complete Roadmap Series Series: Cybersecurity × OT/ICS Security — Full Roadmap Stage: 1 — Network Fundamenta…
The Most Confusing Thing in VirtualBox: Networking Explained
If you've ever run this command in Kali Linux: ip a you've probably seen something like this: lo 127.0.0.1 eth0 10.0.2.15 eth1 192.168.56.10 docker0 1…
Create and configure network security groups
Introduction Want to ensure your web infrastructure is tightly controlled and protected against unauthorized traffic? In this hands-on lab breakdown, …
From the Perspective of a 20-Year Architect: My Own System's Security
Even though I've been immersed in systems for twenty years, I never thought a security incident on my own server would make me sweat this much. I'm us…