Author Archive

Experts Disagree on Top Applications for 5G – IEEE Spectrum

https://spectrum.ieee.org/tech-talk/telecom/wireless/optimisim-and-skepticism-meet-headtohead-at-5g-forum When it comes to the rollout of 5G networks, carriers and equipment suppliers are all in. On the other hand, in 5G’s current development cycle, at least on academic expert is taking a more skeptical position. It seems that the design philosophy of 5G has quite successfully achieved “green” (efficient) and “soft” (agile) aims

The 1.5 Billion Dollar Market: IoT Security

https://blog.paessler.com/investments-in-iot-security-are-set-to-increase-rapidly-in-2018 The two biggest challenges in 2018 will continue to be protecting against unauthorized access, and patching/updating the software of the device. Companies must not neglect the security problems of IoT and IIoT devices. Cyberattacks on the Internet of Things (IoT) are already a reality. According to Gartner‘s market researchers, global spending on IoT security

USB endoscope repair

I have had this cheap USB endoscope for few years. Then it suddenly stopped working. So I opened it up to see what is inside and hopefully fix to work again. The problems seems to be loose green wire. A bit of soldering and it works again. Not much electronics. Just wiring from USB connector

A sysadmin’s guide to SELinux | Opensource.com

https://opensource.com/article/18/7/sysadmin-guide-selinux Security. Hardening. Compliance. Policy. The Four Horsemen of the SysAdmin Apocalypse. In addition to our daily tasks—monitoring, backup, implementation, tuning, updating, and so forth—we are also in charge of securing our systems. In the spirit of The Hitchhiker’s Guide to the Galaxy, here are the 42 answers to the big questions about managing and

Remote powering in audio

Remote powering implies that the power equipment is not local but some distance away.  This article is remote powering audio edition. It can be seen a continuation of my earlier Remote powering over communications cabling posting series. Microphone: Plug-in-power Plug-in power is designed to power electret microphones through same audio cable that carries audio. Most

An introduction to Python bytecode | Opensource.com

https://opensource.com/article/18/4/introduction-python-bytecode Python source code files; they have names ending in .py. And you may also have seen another type of file, with a name ending in .pyc, and you may have heard that they’re Python “bytecode” files. But beyond “oh, that’s Python bytecode,” do you really know what’s in those files and how Python uses