Jul 11, 2018

Jul - 11 2018 | By

Some useful info about what makes a ‘good’ and ‘easily findable’ site.

Fitness watches: Amazfit BIP in particular— Some Info.

OLED– New Display Technology! Low Power!

Do you need screen protection?? Likely Not, thanks to Corning Gorilla Glass

Happy Birthday, App Store!!!

Happy 40th Birthday KVMR July 21!

zombie downloader robot overlord malware.

What Is Alpha Techness?

“We Know What We Are Doing, You Don’t” AKA Technical Elitism
Case in Point: is /dev/urandom really that random, as it affects cryptography?

FIFA Fraud… Real or Fake?!


Notifications of new show notes and edits are tweeted at: twitter.com/ddhart.
– They’re tagged with #Zentech.
– When what’s said is unclear to me (or I’m unfamiliar with a topic) I tend to quote (” “) verbatim.
– Editor’s comments are delimited by < >

For a couple of months, the audio of today’s show is here. Recent shows are here.

The intro & outro music was by Pentatonix.


Paul was in the studio today. Glenn called in.


When Paul read the events calendar he mentioned that KVMR will have an open house with tours of the facilities on Wed Jul 18 6p to 8p. The location is 120 Bridge Street, Nevada City, CA. Also see the link above regarding KVMR’s 40th birthday.

There was a brief mention of the ability of telemarketers to use bogus phone numbers when they call. You might even see your phone number showing up in the caller ID.

Paul said that video card and chip maker Invidia produced hardware algorithms that work with artificial intelligence (AI) that can render images in such a way as to pull out all of the noise in them more efficiently. Watermarks can also be removed. Also, Facebook has algorithms to process photos to turn closed eyes into open eyes and frowns into smiles.

Paul went on to speculate that there will be machine learning systems for robodialers that will engage you in a conversation. This is already being done with text chatbots purporting to be Russian bride hopefuls who then phish the target for their money, if the target doesn’t realize it’s a robot.

If you get one of these robo calls and you’re asked to make vocal ‘yes’ ‘no’ responses to seemingly innocent questions, your voice print can be recorded and later used on a bank site. Paul said that he hasn’t heard of this happening, but the possibility exists.

Paul found a website he likes a lot. It talks about what makes a good, easy-to-find site. The link at the top goes to 160 very readable pages in .pdf format that explain how to be authoritative, how to get linked, how to make sense and how to make your site palatable.

Google has put out some info about sitemap.xml and how to create a map of your website and give some indication of how you want it to be viewed. There are tools to help you, such as the Yoast plugin, for those running a WordPress website, which generates the site map for you.

Paul did some searching for a health monitor similar to a Fitbit and came up with an interesting device on Amazon called Amazfit BIP <see the link at the top> for about $79. He was interested in one that has GPS so he wouldn’t have to use his phone’s GPS. It’s able to run for a month on its rechargeable battery. Its low power drain is due to an OLED (organic LED) display. The display is made of a light-emitting semi-conductor using organic compounds that change color when a voltage is applied. It is viewed by reflected light and it appears similar to a magazine page. A backlight is available for dim light situations. He seems to like it a lot and thought Apple might use this type of display in future iPhones.

For those of us using regular LED displays Paul offered the tip of lowering the screen brightness to prolong the battery life.

He also noted that the Amazfit uses Corning Gorilla Glass <see link at the top>. It’s regular glass that’s dipped into a sodium & potassium bath at 500 or 600 degrees C, which makes the surface much tougher and less prone to scratches. Apple eventually started using it in their phones. Though Corning first developed it, the Japanese & Chinese have their own version of the glass. If you see the demo of it on Youtube, you probably won’t waste your money on a screen protector, Paul said. However, he does use silicone case to absorb the shock of a fall.

It’s been 10 years since Apple created their app store <see the link at the top>. It originally opened with 500 apps for the iPhone 3G. Both Android and Apple screen their apps now and are able to send a killbit to disable an app that’s misbehaving. A number of researchers have found that, over all, the Android apps “are somewhat less secure and will communicate in ways they shouldn’t with servers that shouldn’t know the things you’re doing”. “They don’t steal voice messages or voice communications but…potentially can steal things like your call logs and your contacts”. Pay attention to the permissions the app requests when you’re installing it, but be aware that denying it a permission may limit its functionality. Glenn found that out when he installed Whatsapp on his iPhone.

Jul 21 is KVMR’s 40th birthday. <See the link at the top>

Glenn said the domain name .pharmacy will be available soon. Those using it will supposedly be vetted. Paul noted that the definition of pharmacy varies from place to place and that regulations differ by region. In Mexico you can buy pretty much anything over the counter. Glenn said he thought that the domain will be closely regulated, but said he’ll check into that some more.

Talk turned to domain names (top level domains) in general. You can buy a domain and then resell its use for profit. Glenn, for instance, might buy the domain .fartoo and hope enough people will want to use it so he can recoup his investment and even make money.

Paul explained that if you want to register a domain like .fm you can start by going to nic.fm (put nic in front of it) to find out who runs it. In this case he found several place where he can register his site that will end in .fm. Paul then tried that with nic.pharmacy to find out more about the .pharmacy domain. If you want to know what domains are available, go to Wikipedia and look up tld (top level domain).

Glenn reminded listeners that they can call 530-265-9555 during the broadcast if they have any questions or comments for the guys. They can also send email to zen at kvmr dot org.

Paul tried to find out how to watch FIFA matches live on the internet so he did a Google search. When he typed in “fifa live” a bunch of bogus websites came up. He said there’s no way you’ll get to see it for free, but these websites claim you can if you just sign up and give them your credit card number.

Paul talked a bit about Linux, an operating system that runs not only on personal devices but also on servers that make the internet possible. ‘What Is Alpha Techness?’ is an article about Linus Torvalds, its creator and randomness. <See the link at the top>

One of the central features of cryptography is randomness, Paul said. When Paul was studying computer science there was a saying — “randomness is much too important to be left up to chance.” True randomness won’t come from a mathematical formula because it will eventually repeat itself. What’s used in the world of computers is something that’s indeterminable and unpredictable like movement of the mouse or the touching of the keys or even the temperature of the CPU.

There are 2 sources of true randomness that are readily available, Paul said. One is the rate of thermal conductivity thru a cheap semi-conductor (like a cheap germanium transistor). The other is nuclear decay where it’s impossible to know when the next particle will decay.

Paul reminded listeners they can hear past broadcasts of this and other KVMR shows at archive.kvmr.org.

If you want to look at websites from the past, go to archive.org. <There are all sorts of books, audio, etc, too>.

Last Updated 12:28 AM 7-12-2018

Some useful infoSome useful info

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