Month: February 2018
Self-signed secure boot, the why, the how, the what to look out for
So I am hoping that all of you have not only an encrypted root disk, but also UEFI secure boot enabled. I am guessing that most of you have enabled that with the default (Microsoft) keys. Here I will outline how I changed methodology on my portable, and some of the challenges I ran into.…
Let’s Encrypt: huge impact to society, to me, and wildcards coming soon!
OK, there’s been a minor delay in wildcard support at Let’s Encrypt. But, i’d rather a delay than an insecure cert. So keep up the good work! Now, I use Let’s Encrypt for a variety of purposes here at mi casa. All the public web sites I run from home use a cert (the blog,…
Bitcoin crypto mining hashing spectrum, breaking mobiles, endangering first responders
Bitcoin. powered by coal, it uses more power than Ireland, and now it is interfering with the mobile network, first responders, and endangering lives. How so? Well, the rigs that people are building en-masse look like this. Notice any RF shielding? Nope. And, its a lot of high-speed electronics with a lot of wiring. This…
The LoRaWAN dragon comes to roost at my house
LoRaWAN. Its a magical network that uses unlicensed spectrum (915MHz for me), runs longish distances with stupidly low power (years of battery life), and is designed to make your things network in internet-styles. And now its in my house. At right we see a Dragino gateway. Who is Dragino you ask? Well, in their own words:…
Still doubting you should check your radon?
One of this blog readers recently acquired a Radon detector as I had mentioned earlier. Specifically, the Airthings Wave. And wow, I am glad he did. As you can see from his screenshot, he first put it in one area in his basement (Waterloo, Ontario, Canada), and then relocated it to nearer the sump-hole. And there is…
