SHIFT: The Third Time I Tried Convergence
In 2013 I bought an Ubuntu Phone. Not because I needed a new phone, but because the demos kept showing one specific thing: plug the phone into a monit…
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Handmade Hero: A Systems Programming Odyssey
Handmade Hero: A Systems Programming Odyssey This post is the start of my Handmade Hero journey documentation. For those who do not know what Handmade…
How SSH Works—and How It Breaks (Part 2): Simulating a Man-in-the-Middle Attack
In this article, we’ll explore how a Man-in-the-Middle (MITM) attack works using a small Docker-based lab. We’ll simulate how an attacker can steal cr…
Azure Monitor: Deployment and Configuration
Introduction Azure Monitor is a powerful cloud-based monitoring solution that provides full visibility into the performance, health, and activity of a…
An open-source Proof of Concept for sub-microsecond Quantum Error Correction (QEC) pre-processing using Linux eBPF/XDP.
Excited to release KISDE, an open-source Proof of Concept for sub-microsecond Quantum Error Correction (QEC) pre-processing using Linux eBPF/XDP. In o…
How to Fix Linux Suspend Draining Your Battery Overnight
You close your laptop lid, toss it in your bag, and head home. The next morning you open it up to find a dead battery and a warm chassis. Sound famili…
How I Ship systemd Logs to CloudWatch for $0 (Django + Celery on EC2)
Running Django and Celery as systemd services on EC2 and tired of SSH-ing in to debug? Here's the exact setup I used to ship logs to CloudWatch Logs f…
Running k3s on Proxmox: A Multi-Node Cluster with a VM and LXC Worker — The Hard Way and Back
A practical guide covering installation, troubleshooting, and the real story of getting k3s to run inside an LXC container Introduction Kubernetes is …
A Cross-OS Port Finder in Rust — One CLI, Three Completely Different Data Formats
A Cross-OS Port Finder in Rust — One CLI, Three Completely Different Data Formats A tiny Rust CLI that answers "who is holding port 3000?" on macOS, L…
Engineering the Nexus Release: How I Built Secure E2EE Network Sync into a Linux Clipboard Manager (v1.5.1)
A deep dive into the architecture behind DotGhostBoard v1.5.0 — zero-config mDNS discovery, X25519 ECDH pairing, AES-256-GCM sync, rate limiting, and …
От iptables к nftables: O(n) против O(1) на практике
Если администрировать Linux-сервера достаточно долго, рано или поздно сталкиваешься с сетевой фильтрацией. Где-то нужно закрыть лишние порты, где-то о…
How Do You Debug What You Can't Reproduce? An IPv6 case study in minimal test environments
The Problem A customer reported that their Discovery scans were failing in a pure IPv6 environment. The error messages pointed to two different issues…
The problem with every watch-party app ever made
You open Teleparty. Your friend opens Teleparty. You both navigate to the same Netflix URL. You count to three. Someone's internet hiccups. Now you're…
Incident Triage Without Context Switching: Bash workflow notes (Bash Pipe Stack)
Incident Triage Without Context Switching: Bash workflow notes (Bash Pipe Stack) When an incident starts, the worst thing you can do is scatter your a…
basic OS commands
Focus: Terminal-first, step-by-step command explanations for practical exam prep Table of Contents Linux Basics & File System Linux Commands &…