Tag: technology

Making a Linux laptop

3:22 pm

Yesterday while I was sitting at my desk working on my Linux desktop computer, I got a phone call from someone from “Windows Technical Support.” The man on the line said to me, quite nicely, that they had noticed a problem with my computer and wanted to help me fix it.

I said, “You are talking about my Windows desktop computer, the one I am working right now, correct?”

The man said sweetly, “Yes, sir. That’s the computer we have seen a problem with.”

I answered sweetly, “I just want to be sure, so let me ask again. You are referring to the Windows computer in front of me, the one on my desk?”

He responded, “Yes sir. Could you press your start menu please and go to settings?”

Unfortunately, I had too much work to do, and couldn’t spend more time with him. I would have liked to have led him along for as long as possible, but simple didn’t have the time. Instead, I said, “Um, I can’t really go to my Windows settings because my desktop is a Linux computer, and has been for a decade. Have you heard of Linux?”

Instantly the phone went dead.

I tell this tale because it is only one more reason I abandoned Windows back in 2006. With Linux I have no viruses to worry about, and scammers like this can’t do me any harm.

Anyway, this post really isn’t about Windows scammers. Instead, I want to relate my experience this past week in setting up my first Linux laptop, following the step-by-step instructions provided by James Stephens and posted here on Behind the Black last year in the following series:
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DARPA tests anti-terrorist radiation detection network

9:37 am

In an experiment testing a technology designed to detect the radiation from a terrorist-deployed small nuclear bomb, DARPA in October deployed more than a thousand volunteers in Washington DC to test a detector that can be carried in a backpack.

Recently, a geneticist was mysteriously abducted in Washington DC, leading to the US government deploying a small army of detectives to foil a dirty bomb plot. At least, that was the fictional scenario of a DARPA field test that saw a thousand volunteers equipped with smartphone-sized radiation detectors fan out over the National Mall in a radioactive scavenger hunt to test the progress of the agency’s SIGMA project, which is tasked with developing technology to combat nuclear terrorism.

Nuclear terrorism is one of the top nightmares of security services. Not only is the prospect of a dirty bomb involving radioactive materials dispersed by conventional explosives alarming, but tracking down illegal nuclear materials in an urban setting requires covering far too large an area for fixed sensors. Since 2014, DARPA has been working on how to produce a portable sensor array based on low-cost, high-efficiency, radiation sensors networked by smartphone networks to detect gamma and neutron radiation and evaluate the information in real time

According to DARPA, the SIGMA array was first tested in New York and New Jersey using 100 sensors. For the Washington test, 1,000 sensors were carried in backpacks by hundreds of ROTC cadets from the universities in the National Capital Region, midshipmen from the US Naval Academy, and DARPA personnel coordinated by the University of Maryland’s National Consortium for the Study of Terrorism and Responses to Terrorism (START).

Developing technology that can find and catch a terrorist who is trying to deploy a nuclear bomb in an urban area is certainly a good thing. I can’t help worry, however, about some larger philosophical concerns. Putting aside the specific technology being tested, the infrastructure being developed here that will make it easy for the government to deploy thousands of volunteers to hunt down an individual makes me a bit uncomfortable.

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First computer music recording restored

10:25 am

Engineers have restored the first recording of computer-generated music from 1951.

The oldest recording of computer music was made in late 1951 by a BBC outside broadcast unit at the University of Manchester for the BBC Home Service program Children’s Hour. The rough two-minute recording is of the Ferranti Mark I computer playing “God Save the King”, “Baa Baa Black Sheep”, and the popular swing-band hit “In the Mood.” The recording was made on mobile recording equipment and etched into a 12-inch, single-sided acetate disc, as was normal for the time.

The restoration determined that the record, one of only two in existence, played the music at the wrong speed. To make it sound correct, “it had to be sped up, extraneous noise filtered out, and digitally pitch-corrected to remove wobbles.”

You should definitely listen to it. Quite fascinating, especially since it includes the candid commentary of the technicians as they tried to get the computer to play.

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Hackers devise method to take over wireless keyboards/mouses

9:21 am

Your modern wireless computer is not safe: Hackers have devised an attack that is capable of not only recording the keystrokes and mouse actions of wireless devices, it can also take over the computer, and it can do it from hundreds of feet away.

On Tuesday Bastille’s research team revealed a new set of wireless keyboard attacks they’re calling Keysniffer. The technique, which they’re planning to detail at the Defcon hacker conference in two weeks, allows any hacker with a $12 radio device to intercept the connection between any of eight wireless keyboards and a computer from 250 feet away. What’s more, it gives the hacker the ability to both type keystrokes on the victim machine and silently record the target’s typing.

The keyboards’ vulnerability, according to Bastille’s chief research officer Ivan O’Sullivan, comes from the fact that they all transmit keystrokes entirely without encryption. The manufacturers’ only plan against attackers spoofing or eavesdropping on their devices’ communications is to depend on the obscurity of the radio protocols used. “We were stunned,” says O’Sullivan. “We had no expectation that in 2016 these companies would be selling keyboards with no encryption.”

In other words, if you use a wireless keyboard or mouse, your system is very vulnerable and exposed.

I find this story amusing in a sense, since my friends constantly make fun of me for not upgrading to these devises. I however see no reason to spend money on a new keyboard when the old wired one I have works fine. Now I have good reason, when I do upgrade, to avoid the wireless route.

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Swedish engineer test flies human-carrying drone

9:09 am

A Swedish engineer, in his garage, has built a flying vehicle using drones and gasoline engines.

You have to see the thing to understand how insanely simple, crazy, and cool this is. For example, the whole thing is essentially nothing more than a seat surrounded by eight drones, their spinning propellers rotating only about two feet from the passenger.

But it appears to work, though the design is without doubt not quite finalized. I have embedded a video of one of his test flights below the fold. This was fortunately an unmanned flight, because about three minutes in the vehicle goes out of control and crashes.
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Getting and Installing Linux – Part 5

6:01 am

Running Windows programs on Linux:

An overview of WINE and Virtual Machine

by James Stephens

In addition to all the software available for Linux, Linux also possesses the ability to run Windows software using either WINE or in a virtual machine. This can be valuable in many ways, from running legacy software to running Windows and Linux on the same machine at the same time.

WINE is the open source implementation of CrossOver, which Apple users may already be familiar. It is essentially a translator: WINE sits between a Windows application and the Linux system, presenting what appears to be a Windows system to an application and generating Linux instructions for processing. It’s not a perfect solution, but it’s pretty good. It’s fast and efficient, requiring little more resources then the application itself, making it suitable for older machines. When properly configured, Windows applications install as if in Windows and run on Linux like any other application. The backward compatibility of WINE is actually better then that of Windows itself. So if you have beloved but outdated software you can run it again with WINE. In my case that is a Windows 3.1 controlled audio mixing console. A lot of people like to play the old Windows 95 games. For more information including a list of compatible Windows software and performance assessments go to www.winehq.org
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Flyboard Air company purchased

9:41 am

The company that designed the Flyboard Air jet hoverboard, featured here only two days ago in the Evening Pause, has been purchased by Implant Sciences, a company whose primary focus until now was explosive detection technology for the Homeland Security.

Implant Sciences is currently looking into the possibility of selling its explosives detection business, and the purchase of Zapata is subject to shareholder approval. Overall though, it seems pretty confident that the move could lead to big things. “We are beyond excited to have visionaries like Franky Zapata and his team on board and we are thrilled to allow for shareholders to benefit from the many breakthrough products he has already invented and the new innovations he will be unveiling in coming months and years.” said Implant Sciences president Robert Liscouski.

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EPA’s gasoline efficiency tests are garbage

9:07 am

Our government in action: The tests the EPA uses to establish the fuel efficiency of cars are unreliable, and likely provide no valid information at all about the fuel efficiency of the cars tested.

The law requiring cars to meet these fuel efficiency tests was written in the 1970s, and specifically sets standards based on the technology then. Worse,

[T]he EPA doesn’t know exactly how its CAFE testing correlates with actual results, because it has never done a comprehensive study of real-world fuel economy. Nor does anyone else. The best available data comes from consumers who report it to the DOT—hardly a scientific sampling.

Other than that, everything is fine. Companies are forced to spend billions on this regulation, the costs of which they immediately pass on to consumers, all based on fantasy and a badly-written law. Gee, I’m sure glad we never tried this with healthcare!

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Getting and Installing Linux – Part 4

6:01 am

The Software Manager

by James Stephens

A computer is nothing more than a toy unless it has the tools you need to get your work done, and Linux has a great set of tools. Most distributions come loaded with the tools most people use every day, a full office suite, graphics and media packages and so on. If you want more, a world of software awaits at your fingertips via the Software Manager. Think of it as the app store for your distribution, with tens of thousands of official titles vetted and available for download, most free of charge. No longer are you left to the wilds of the Internet to find what you need.

Most Linux Software is functionally equivalent to that of Apple or Windows. Most open source titles are ported to all platforms including Linux. So if you use an open source title such as Audacity or VLC media player, just type its name into the Linux Software Manager search bar and you will find it. For propitiatory titles such as Photoshop just define what it does, image manipulation for example, and the Software Manager will suggest Linux equivalents like GIMP or KRITA. In addition Photoshop and some other Windows software run great on Linux using WINE – the Windows compatibility layer. More about that later.
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Breakthrough on battery life?

6:50 pm

New research might have discovered engineering that could significantly increase the efficiency of the batteries we use.

This is where Mya Le Thai’s magic gel comes in. Typically, a Lithium Ion battery can go through between 5000 and 7000 recharge cycles before it dies and will also gradually lose its energy storage capacity over time. When researchers applied Thai’s plexiglass-like gel to gold nanowires in a manganese dioxiode shell, it increased that number to over 200,000 and the battery didn’t lose any of its power or storage capacity over a period of three months.

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Getting and Installing Linux – Part 3

6:01 am

UEFI and booting Linux on Win 8.1 & 10 machines

by James Stephens

Unified Extensible Firmware Interface (UEFI) is intended to be a modern alternative to BIOS. Ideally UEFI-(Secure Boot) blocks malware from being loaded when the computer is booted by using digital keys which software must possess in order to be booted onto the computer. UEFI supplants the traditional BIOS and it’s post screen, appreciably shortening boot times but sometimes adding a few more steps to set up a computer to boot into Linux. If necessary UEFI-(Secure Boot) may be disabled to allow access to the BIOS and the booting of non-UEFI complaint operating systems, such as 32 bit Linux or legacy Windows, and set up the computer to boot into Linux as I described in the previous post. But I recommend using UEFI if at all possible.
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Why I use Linux

2:27 pm

Linux can be a pain sometimes, and it requires a bit more hands-on work by the user to make it function, but overall in the ten years since I abandoned Windows and switched to Linux (first with the Debian operating system and now with Kubuntu) I have found my work on my computer to be far more satisfying and successful. I can mostly get things done the way I like to do them, not as dictated by some software geek working at Microsoft’s headquarters.

Which is why this story interested me: “I thought my daughter clicked on ransomware – it was the damn Windows 10 installer.” It describes a number of stories where Windows 10 took control of a person’s computer and imposed an upgrade, against their will.

This story, among many others, only confirmed for me that my decision in 2006 was a wise one. I will never return to Windows, and if I was certain that computer projectors could read Linux laptops I’d switch the laptop to Linux as well.

It is just a shame however that so many people still stick with Windows, as it often makes doing their work difficult, if not impossible. When a product doesn’t work for you, you find another product. That’s how freedom and competition work.

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