VSHN.timer #149: UDP, TTY, SEL, and AMD

15. Aug 2022

Welcome to another VSHN.timer! Every Monday, 5 links related to Kubernetes, OpenShift, CI / CD, and DevOps; all stuff coming out of our own chat system, making us think, laugh, or simply work better.

This week we’re going to talk about hardware such as oscilloscopes, teletype terminals, cars, laptops, and more.

1. Can you read digital UDP packets with an analog oscilloscope? Matt Keeter says yes and shows us how, including the Rust code to translate from signals to actual packets being sent. Because science.


2. All Unix geeks have seen the acronym “TTY” appear in front of their eyes one day or another. But what is it? The SoByte team explains the history, going from teletypes, to ssh, and SIGINT signals.


3. Are you a Linux hacker? Have you bought a Hyundai Ioniq SEL recently? If you replied affirmatively to both questions, greenluigi1 teaches you how to build your own apps to run in its infotainment system.


4. How does the Apple MacBook Air M2 running Asahi Linux compare against other recent laptops? Phoronix has benchmarked it against the AMD Ryzen 7 PRO 6850U “Rembrandt” Zen 3+, the Intel Core i7 1280P “Alder Lake P”, and the AMD Ryzen 9 5900HX “Cezanne H”.


5. Building Kubernetes clusters with Raspberry Pis is one of the most popular hobbies among DevOps developers; we’ve talked about that last year, remember? Here’s another example, this time by Ricardo Sanchez.


Have you reverse-engineered your car’s infotainment system? Are you an oscilloscope aficionado? Would you like to share your passion for hardware hacks with our readers? Get in touch with us, and see you next week for another edition of VSHN.timer.

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PS3: check out our previous VSHN.timer editions about hardware: #80, #113, and #135.

Adrian Kosmaczewski

Adrian Kosmaczewski is in charge of Developer Relations at VSHN. He is a software developer since 1996, a trainer, and a published author. Adrian holds a Master in Information Technology from the University of Liverpool.

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