Archive for February 2019

Sparks of joy

What if a jolt of electricity could make you happy? http://blogs.discovermagazine.com/d-brief/2019/02/22/new-experiment-scientists-used-jolts-electricity-spark-actual-joy/#.XHeCgmnks0P People all around the world have been exhausting themselves of late trying to “spark joy” in their lives. Any emotion we feel has a physical cause inside our brains: Electrical charges pass from neuron to neuron. It seems that what we call happiness is

Breaking out of Docker via runC – Explaining CVE-2019-5736 | Twistlock

https://www.twistlock.com/labs-blog/breaking-docker-via-runc-explaining-cve-2019-5736/ More than a week ago (2019-02-11) a new vulnerability in runC was reported by its maintainers. Dubbed CVE-2019-5736, it affects Docker containers running in default settings and can be used by an attacker to gain root-level access on the host. The same fundamental flaw exists in LXC. Both runC and LXC were patched and

Circular buffer for embedded systems – Overlay Technology

https://overlay.technology/circular-buffer-for-embedded-systems/ The circular buffer behaviour is ideal for implementing any data structure that is statically allocated and behaves like FIFO. As an example, mailboxes and queues can be implemented using the circular buffer as a kernel. This post is part of the Memory Control Structures series. Also, read the other posts in the series…

Linux 4.18 Continues Prepping For The Year 2038

https://www.phoronix.com/scan.php?page=news_item&px=Linux-4.18-More-Y2038-Prep The Linux kernel has already been prepping for years for Year 2038 and that work is still ongoing with the in-development Linux 4.18 kernel. The Year 2038 problem is when systems using a signed 32-bit integer for storing the time since 1 January 1970 (standard for the Unix time-stamp) will wrap around. Solving the

Julia Reda – Breaking: The text of Article 13 and the EU Copyright Directive has just been finalised

https://juliareda.eu/2019/02/eu-copyright-final-text/ This EU law will fundamentally change the internet as we know it – if it is adopted in the upcoming final vote. But we can still prevent that! The history of this law is a shameful one. From the very beginning, the purpose of Articles 11 and 13 was never to solve clearly-defined issues

Arduino Blog » Announcing the Arduino IoT Cloud Public Beta

https://blog.arduino.cc/2019/02/06/announcing-the-arduino-iot-cloud-public-beta/ The Arduino IoT Cloud is an easy-to-use platform that makes it very simple for anyone to develop and manage their IoT applications, then deploy them to a large number of users. With the launch of the Arduino IoT Cloud, Arduino now provides its one million users a complete end-to-end approach to IoT that includes

Phoenix Contact SSR teardown

Here is a tear-down of ST-OV2- 12DC/ 60DC/1 – 2905022 solid state relay from Phoenix Contact. This product is old, obsolete and manufacturing has been discontinued.   Solid-state relay ST-OV2- 12DC/ 60DC/1 – 2905022 is a plug-in power solid-state relay (plug to certain Phoenix Contact wiring terminals), with LED and protective circuit in input and