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https://opensource.com/article/18/5/how-find-ip-address-linux This article tells Linux commands to find local and public IP addresses for your machine. →

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 →

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 →

https://predictabledesigns.com/top-resources-for-hardware-startups-and-makers/ Hardware startups and makers can use all the help they can get. It can be difficult, however, to find resources for developing a physical hardware product (as opposed to software). This article has a list of 30 online resources for those developing new electronic products. This article was originally published on PredictableDesigns.com and there →

I visited today Product Development Project Gala at Aalto University in Espoo Finland. I tasted pizza made by robots. Ready →

Just received those Potato chips that work like classic TTL logic but up to ~1GHz. Hopefully they will work on my TDR circuit. I should try the chip in this →

Back in the ancient days before sound cards, around 30 years ago, sound cards were rare on PCs. One hack those days was the original Covox Speech Thing, that connected a simple DAC to to PC parallel port. The Covox Speech Thing (also known as Covox plug) was an external audio device attached to the →

Merry Christmas to everybody that celebrate it. There is lot’s of snow in home country of Santa Claus. →

http://www.instructables.com/id/High-Speed-Photography-Flash-Trigger-by-Sound-or-L/  how to build an Arduino based flash trigger for high speed photography. The trigger can be activated by sound, vibration or by breaking a laser beam. →

https://www.realclearscience.com/lists/biggest_junk_science_2017/2017_worst_junk_science.html In a perfectly logical world, where everyone has adopted science as a way of thinking, lists like this wouldn’t be necessary. Unfortunately, as 2017 demonstrated, we’re nowhere close to that world as junk science is alive and seems to be thriving. →