MikroTrick: критические уязвимости MikroTik RouterOS уже используются в реальных атаках

Исследователи CERT Polska раскрыли шесть уязвимостей в MikroTik RouterOS, две из которых объединяются в цепочку, получившую название MikroTrick. По данным исследователей, цепочка позволяет без аутентификации получить полный административный контроль над маршрутизатором, если его SSH-сервис доступен из недоверенной сети. CERT Polska уже подтвердила эксплуатацию MikroTrick в реальных атаках, наблюдавшихся как минимум...

Build a game like mobile smash hit Meowdoku in vanilla JavaScript in just a few lines of code

Meowdoku is a hit cat puzzle: one cat per row, column and colour region, and no two may touch, not even diagonally. I rebuilt it from scratch in vanilla JavaScript, and here is how.

s/Neovim/Helix/g

A while ago I decided that I’d like to challenge my muscle memory (and by that my brain) a little by pushing it out of its comfort zone. Last time I did that was back in 2024 with the switch from my endgame M60 to the Corne v3 and ultimately to the Kunai, which required me to re-learn to type, in a way. I remember how dreadfully inconvenient the experience had been in the first days/weeks, but over two years down the line I’m glad I made the move, and I feel like it has definitely improved my typing and my abilities, let alone my wrist posture.

This...

Jetzt auch noch Belletristik?

A note for my international readers: this post is in german, because the book is — eight short stories of the fantastic, out now as paperback and ebook (amazon.de, but the ebook travels). A translation is not planned for the time being; the state of things post has a summary in english. Ich habe fr…

Your First App for the M5Stack Cardputer

A friendly guide to writing code for the ESP32-S3

Continue reading on Level Up Coding »

Hyperuplink: Discuss like it's 1998

Between the screeching handshake of a 2400-baud modem, the steady hum of a computer in Turbo mode, and the pale flicker of a CRT glowing at three in the morning, the internet seemed to have had something that, over the past two decades or so, it has completely lost: A soul. Communities made up of actual humans gathered around bulletin boards that loaded in a single request, where regular hardware could bring an entire world to your screen without borrowing half your CPU just to show you a list of topics. If you happened to have lived through that brief and peculiar moment in history, you probably...

The software I could never justify building — and why LLMs changed that

I recently made the mistake of asking GitHub and GitLab what I had worked on during the previous twelve months. The answer was ridiculous: sixty GitHub repositories with my commits, forty-two GitLab project IDs with activity, and enough overlap, mirrors, experiments, libraries and product work to ma…

Simsalabim — giving the iOS Simulator hardware powers

The iOS Simulator is a wonderfully fast place to build an app — right up to the moment the app needs something that belongs to the physical world. Bluetooth discovery returns nothing, there’s no camera, Core NFC is unavailable, and a freshly created simulator has no contacts, appointments, remi…

The Cables that Connect the World

At the northeastern edge of La Línea de la Concepción, on a scrubby Mediterranean beach called El Burgo–Torrenueva, there is an old battlement-tower, La Torre Nueva, and not much else. It was part of the system of coastal watchtowers during the 16th century that would defend the area against the incursion of the Barbary corsairs. The coordinates are 36°12′36″N, 5°19′27″W. Walk the tideline and you would never know that buried two meters beneath the sand, a fiber-optic cable comes out of the sea here and turns into the internet. It’s the start of a line that runs across the Strait of Gibraltar to Ceuta, on the African coast,...

Two questions macOS should answer — lsaudio and lsusd

Some tools begin with a roadmap. Others — like these two — begin with a question you ask yourself often enough that irritation wins. At my desk, two questions kept coming back: What is making that sound? What exactly is connected over USB? macOS knows both answers. CoreAudio knows every process th…