Ars Technica

The $99 Android tablet of 2013: The Hisense Sero 7 LT (or Lite)

Dave Farquhar Android , , , , , ,

So when I decided to bring myself into the current decade, tablet-wise, I opted for the $150 Hisense Sero 7 Pro, though I was certainly curious about its $99 little brother. Unfortunately, information on the Sero 7 Lite hasn’t been as easy to come by–people are understandably excited about getting a Nexus 7 clone for $50 less that actually includes two desirable features that the real thing lacks. This must be what it felt like to be in the market for an IBM PC/XT when the Leading Edge Model D came out in the summer of 1985. Read more

Why your favorite web site’s password strength meter is full of hooey

Dave Farquhar security , , ,

What happens when you talk three password crackers into doing their worst to a leaked database of 16,000 passwords and then talk to them about it?

You learn a lot, and we can learn a lot from their experience as well. “qeadzcwrsfxv1331” isn’t a good password. Neither is “Philippians4:13.” Neither is “correcthorsebatterystaple.” Neither is “Qbesancon321” or “Qbe$@ncon321.” Password guessing has too much intelligence built into it now.

And not only that, by continuing to use the password “popcorn,” you make it easier for those guys to guess other passwords too. Read more

Linux admins beware, there’s a web server exploit in the wild

Dave Farquhar security ,

No OS is 100% secure if there’s enough desire to get in. There’s a web server exploit targeting Apache, Nginx, and Lighttpd running on Linux–a first of its kind, in at least one regard.

According to this page, if you execute this command:

strings /usr/bin/apache2 | egrep opentty

you’re clean if nothing comes up, and your infected if you see one or more matches. If your system stores its httpd elsewhere, change the first parameter to match.

These study results on energy savings aren’t surprising

Dave Farquhar Saving money , ,

Unfortunately, energy saving products are political. Pitch energy efficiency as a cost savings, and liberals and conservatives alike are willing to buy. Pitch it as environmental-saving, and moderates get turned off while conservatives get even more so.

The lesson to marketers: Sell energy-efficient products as technology that promotes energy independence and cost savings. Everyone likes technology, everyone likes energy independence, and everyone likes cost savings.

And the savings is significant. Although I don’t have LED lights and an occupancy switch in every room yet, that’s my eventual goal. Even as electric rates go up, my electric bills tend to hold steady or barely go up, mostly because none of my rooms consume more than 60 watts of electricity to light them, and the highest-traffic rooms turn the lights off automatically after everyone leaves. My total usage goes down some years.

And for what it’s worth, I always preferred LED lights with occupancy switches. The LEDs don’t seem to care how often you switch them off and on; but CFL bulbs do. When using an occupancy switch with CFL bulbs, be sure to put them on their very longest time setting. Anymore, I always go with LED bulbs.

Lenovo’s phone is ringing again. And it’s IBM. Again.

Dave Farquhar Hardware , , , ,

When IBM sold its desktop and laptop PC business to Lenovo nine years ago, it held on to its x86-based server business. But now, IBM doesn’t see the x86 server business as a growth area anymore, and now they’re interested in selling that to Lenovo, too. Read more

The ethics of writing nefarious security instructions

Dave Farquhar security , , , , , , ,

This week I posted a link to a video showing how to crack a WPS-enabled wifi network, and this week, Ars Technica wrote a firsthand account of cracking a password list. I’m sure this raises questions of ethics in some people’s minds. To be honest, spreading this kind of information makes me a little uncomfortable too, but I also think it’s necessary.

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The men (boys) who spy on women through webcams

Dave Farquhar security , , , , , , , , , , , , ,

Ars Technica made a bit of a splash this week with this provocative headline. This is real.

The article gives the usual advice, like not opening e-mail from strangers, not clicking attachments from strangers, and not visiting dodgy websites. That’s all good advice, as is staying off torrent and other file sharing sites, but even all that is not enough.
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Ars Technica looks at asymmetric enryption

Dave Farquhar security , ,
Ars Technica posted an overview of asymmetric encryption recently. (Link removed in retaliation for Conde Nast’s 11/3/2025 layoffs. Sorry not sorry.)

Book scanning on the (relatively) cheap

Dave Farquhar Copyright , , , ,

Ars Technica has a fascinating article on the trials and tribulations of building a book scanner from a kit.

They lament the lack of software support, however–namely, a program to convert the image files generated by the digital camera into a PDF. Should I point them in the right direction? Why not? The key is Imagemagick, of course.
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SSDs might be getting less interesting, but that’s not necessarily bad

Dave Farquhar Hardware , , , , , , , , , ,

Ars Technica has a story about SSD news coming out of CES.

Basically, they’re predicting that the big news this year will be consolidation and lower prices. That may be bad news for someone who writes about SSDs for a living (I don’t), but good news for consumers. Read more