Practical Technology

for practical people.

November 16, 2011
by sjvn01
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OpenSUSE’s new Linux distribution is for the clouds

When Novell was bought by Attachmate, people wondered if Novell/SUSE’s community Linux distribution, openSUSE, would even survive. Now, we know, openSUSE lives.

The openSUSE Project has released the latest version of its popular Linux distribution openSUSE 12.1. In a statement, Jos Poortvliet, openSUSE community manager for SUSE, said, “OpenSUSE 12.1 represents more than eight months of worldwide effort to create one of the industry’s best Linux distributions. The openSUSE distribution and its thousands of open source applications are the result of contributions from individual testers, writers, translators, usability experts, artists, ambassadors, packagers and developers having a lot of fun working together to create a uniquely powerful set of tools and capabilities.”

So what does that mean? Well, among other things even more so than Ubuntu, openSUSE is embracing the cloud.

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November 15, 2011
by sjvn01
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How to keep your Wi-Fi location out of Google

This summer it was revealed that Google Street View cars, besides taking photos of your neighborhood, were also collecting the street addresses, Wi-Fi service set identifier (SSID), and the unique Media Access Control (MAC) identification information for computers, Wi-Fi access points (AP)s, and routers. Worse still, Google was, apparently by accident, also grabbing unencrypted passwords and e-mails. Yack!

While Google quickly backed off grabbing people’s personal data, the company’s Google Street View cars are continuing to pick up Wi-Fi access points and routers’ unique MACs, SSIDs, and physical addresses.

Google uses this information to improve its Google Map and other location-based services, but what if you don’t want to contribute to this effort? Until recently, you were stuck.

Now, Google will let you opt-out. Frankly, I think it would be a lot better if they only recorded your Wi-Fi equipment’s location if you opted in, but it is what it is.

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November 14, 2011
by sjvn01
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Where Linux crushes Windows like a bug: Supercomputers

The faster a computer goes, the more likely is to have Linux at its heart. The most recent Top500 list of supercomputers shows that, if anything, Linux is becoming even more popular at computing’s high end.

In the latest Top500 Supercomputer list, you’ll find when you dig into the supercomputer statistics that Linux runs 457 of the world’s fastest computers. That’s 91.4%. Linux is followed by Unix, with 30 or 6%; mixed operating systems with 11 supercomputers, 2.2%. In the back of the line, you’ll find OpenSolaris and BSD with 1 computer and–oh me, oh my–Windows also with just 1 supercomputer to its credit. That’s a drop from 4 in the last supercomputer round up in June.

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November 14, 2011
by sjvn01
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South Korea proposes restricting all e-mail sending to official e-mail servers

According to the BBC, South Korea’s Internet and Security Agency is asking all ISPs to block all e-mail sent from anything but “official” e-mail servers. The idea is to block spam, but will it really accomplish this goal?

It’s not like this is a new idea. The Anti-Spam Technical Alliance proposed it as a best e-mail practice for ISPs in 2004. It’s a simple idea. If an ISP blocks the default Simple Mail Transport Protocol (SMTP) port, Port 25, from sending e-mail messages, users will be forced to use their ISP’s mail servers. This, in turn, the theory, goes will magically stop spam.

ISPs loved this idea. Today, most ISPs already ready block port 25. AT&T, Comcast and Verizon to name only three already do this. In practice what this means is that unless you have a static Internet Protocol (IP) address chances are you must use your ISP’s official e-mail server to send mail out.

Yep, it’s already a popular, frequently implemented idea. Too bad it doesn’t work.

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November 13, 2011
by sjvn01
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New Desktop Interface Flops

If you follow my work, you won’t be surprised to know that I really dislike Windows 8’s proposed new interface, Metro. That’s not because I hate everything from Microsoft. It’s because I hate anything that’s a bad design, and it’s not just Microsoft that’s guilty of that. So are open-source groups such as GNOME.

Unlike my colleague Ken Hess who hates just about all the newest interfaces, I do like some of the new ones… in their place.

For example, he really dislikes Ubuntu’s Unity desktop. I don’t. In fact, I rather like Unity/… in its place. Mind you, I don’t like it that much for me, but at least I can see what Ubuntu is trying to do with their interface and I think they’re successful in reaching that goal.

What I mean by that is I’m a power user. I want a graphical user interface (GUI) to either help me reach deep into a system so that I can tune it just the way I like or, at the least, to get out of the way so I can get to a command line interface or shell so I can easily adjust the system. Unity doesn’t do that. But, then Unity isn’t meant for power users. It’s mean for new PC or tablet users who want to easily do a relatively few tasks: get on the Web, play music, and so on. For them, Unity is great. For me, or Ken, not so much.

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November 10, 2011
by sjvn01
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Goodbye BIOS, hello UEFI

When you turn on your computer, a primitive system that dates back more than 30 years, the basic input/output system (BIOS), turns your cold hardware into a functioning system that your operating system can then boot from. Alas, it’s sadly out of date. PC makers have slowly been replacing BIOS with the Unified Extensible Firmware Interface (UEFI). That’s all well and good, but one UEFI feature, Secure Boot, could be used to lock PCs into being only able to boot one operating system: Windows 8.

[ Linux Foundation recommends fixes for UEFI roadblock ]

So, what’s really going on here? Is UEFI just a way for Microsoft and its most loyal original equipment manufacturers (OEMs) to keep Linux and other alternative operating systems out or is it more than that? To answer that, let’s take a look at what’s what with UEFI.

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