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Submission + - SPAM: X Power Tools

stoolpigeon writes: "The X Window System has been around for over twenty years and is the display system for an incredibly wide range of operating systems. With the number of Linux users growing, there are more people working with X than ever before. Most modern desktop environments provide user friendly interfaces that make modifying X rather simple. There is not so much need to dig into config files and settings as in the past but for those environments without such tools or for the user who loves to dig deep into their environment this book can be a simple way to understanding how X works and how to tweak it in any number of ways. If you want things that 'just work' and have no interest in digging around below the surface this book is not for you. On the other hand, if you think the best thing to do with a shiny new tool is to take it apart, well "X Power Tools" by Chris Tyler may be just for you.

The author, Chris Tyler, is a professor at Seneca College in Toronto as well as a programmer and Linux user. His first book published by O'Reilly was "Fedora Linux: A Complete Guide to Red Hat's Community Distribution", published in 2006. He cites the growth in X users, combined with active development and the lack of existing books that address X as the motivation for writing "X Power Tools."

X is the windowing system on a wide range of Unix and Unix like systems. Chris is obviously most familiar with Linux and so the material is heavily Linux oriented. This is most apparent when the book deals with Session Managers, Desktop Environments and Window Managers. The material focuses on Gnome, KDE and Xfce and their associated components in regards to X. For the Linux user this could be a valuable resource.

When I've had issues in working with X locally and over the network, I've found that while what I need is available on the web, getting just what I need can be very labor intensive at times. Usually just what I want is spread across tutorials, on-line man pages and forum posts. Sorting out what applies to my situation can be especially difficult when I'm not even sure just how things work for my setup. Chris makes this kind of guessing unnecessary and provides the locations and function of key files. He also spells out how the most important files and tools can be best used.

For the sysadmin on another platform, these Linux specific sections are not going to be much help. Most of the book though, deals with X itself. I've already loaned my copy to one of our AIX admins more than once and I think he plans on picking up a copy of his own.

When Gnome and KDE provide an interface for modifying or customizing X functionality, the book gives at least the name of the program and sometimes screen shots and explanations of how the tool works. This is always after an illustration of how to get the job done with the tools that are a part of X itself. From fonts to keyboard layouts, multi-display to kiosks, everything required is laid out in straight forward terms.

For me, as a Fedora user myself, this means that having read this book I approach my work environment with a new level of confidence. Behaviors that used to puzzle me, now make complete sense. Quirks that bothered me, no longer need to be tolerated as I know have the tools to get things working just the way I want, rather than using defaults.

The book has just come out, so it was being written before the release of KDE 4. I've looked through the documentation and I don't think any of the changes to programs like KDM or KWin make the information in the book out of date. In fact, according to the KWin release notes, when discussing KWins new compositing support, "...manual configuration of X may be required for proper results..." So if you are a KDE user that likes to live on the edge, this book may come in handy.

O'Reilly says that their "Power Tool" books are comprised of a series of stand-alone articles that are cross-referenced to one another. To be honest, it didn't feel much different from reading any other tech book. Topics flowed naturally and the articles are analogous to sections that divide up chapters in other books. One nice navigation feature is that page numbers are on the bottom of the pages while chapter and article numbers are at the top corner in a decimal notations. For example at the top of page 58 there is a grey square containing the number 3.13 which means that it is the 13th article in chapter 3.

The book has a thorough index. It also comes with 45 days free access to an electronic version through O'Reilly Safari.

For me the only real weakness of the book is that I would like to have seen more information on working with X on Unix. When reference is made to specific implementation of X it is almost always in regards to Linux. I wouldn't want to lose that, but I think a mixed environment of Unix, Linux and Windows is more the rule than the exception today. It would be more work to include other operating systems, but it would have also made the book much more valuable.

All tech books face the danger of becoming quickly useless as progress marches forward. X is actively being developed, but at the same time, looking back on its history I think this book will be useful for sysadmin and user for some time to come."
Programming

Submission + - (how) do you print your code? 2

Thunder Rabbit writes: "When trying to grok the flow of code, I can't always do it just on the screen. When I come across a closing bracket, it may be several hundred lines below its opener. Even if they are correctly commented, it's hard for me to get the overview into my brain.

At my office, though I can print the code in syntax driven glorious full color, it comes out on individual sheets of letter paper (landscape, with minimized margins).

I long for the fanfold paper we had in university. It was black and white, but it was all contiguous; I could draw lines along the left margin connecting opening and closing brackets, and immediately get a better sense of the program's flow. And (goodness forbid) a bug caused by a missing or superfluous bracket? I could find that problem in a trice.

Nowadays I print my pages, then use tape to string them all together to get my fanfold fix.

What about you? How do you print your code?"
Government

Submission + - Geeks Help In Government Coverup (wsj.com)

covaro writes: "Seems those on-site computer services are helping cover up government dirty deeds these days. From the article:

Bypassing his agency's computer technicians, Mr. Bloch phoned 1-800-905-GEEKS for Geeks on Call, the mobile PC-help service. It dispatched a technician in one of its signature PT Cruiser wagons. In an interview, the 49-year-old former labor-law litigator from Lawrence, Kan., confirmed that he contacted Geeks on Call but said he was trying to eradicate a virus that had seized control of his computer. Mr. Bloch had his computer's hard disk completely cleansed using a "seven-level" wipe: a thorough scrubbing that conforms to Defense Department data-security standards. The process makes it nearly impossible for forensics experts to restore the data later. He also directed Geeks on Call to erase laptop computers that had been used by his two top political deputies, who had recently left the agency.
This also makes you wonder if the technician had the necessary clearance to be performing the work he was doing. They were after all machines being used in a government investigation."

Intel

Submission + - Intel Enter New HafniumTransistors Era with Penryn (techluver.com)

Tech.Luver writes: "Intel plans to roll out its newest generation of processors, Monday, flexing its manufacturing muscle with a sophisticated new process that crams up to 40 percent more transistors onto the Penryn chips. The world's largest semiconductor company expects to start shipping 16 new microprocessors — which also boast inventive new materials to stanch electricity loss — for use in servers and high-end gaming PCs . The chip maker will now use Hafnium in combination with a pair of secret metal oxides instead of silicon dioxide to craft the insulation layer of the gate that controls current. The tweaking of the materials counts as the most significant change to transistors in about forty years, according to Intel co-founder Gordon Moore. Fifteen of the new chips will run server computers, or systems that dish out data on corporate networks and the Internet, while one model is designed for personal computers. ( http://techluver.com/2007/11/11/intel-to-enter-in-to-new-era-of-transistors-made-of-hafnium-with-faster-smaller-45nm-penryn-processors/ )"
Communications

Submission + - /.ers challenged to succeed where Microsoft failed (wetmachine.com) 2

An anonymous reader writes: Microsoft screwed the pooch with their submission of a broken machine to the FCC in the bid to gain acceptance for use of the spectrum whitespaces. Harold Feld of the Media Access Project has, on his own blog, thrown down the gauntlet to all open source techie types to succeed where Microsoft has failed, and show the FCC that the Whitespace should be open for public use. So how about it? Are you a bleating sheep or a Well Armed Lamb?
Space

Submission + - Plasma-Based Life possible? 1

An anonymous reader writes: According to Space.com, Researchers from Germany's Max Planck Institute have created a computer model demonstrating that microscopic dust-particles injected into low-temperature plasmas spontaneously self-organize into crystalline structures resembling DNA and other biological structures. Team member V.N. Tsytovich states "These complex, self-organized plasma structures exhibit all the necessary properties to qualify them as candidates for inorganic living matter."

No word yet on how this discovery might affect Human-Klingon relations.
Power

Submission + - Energy Star Specifications Updated for Computers (floppyhead.com)

Kevin writes: "On July 20th, ENERGY STAR's new specifications for computers went into effect. Only about 125 desktops and laptops currently meet the new stringent requirements. The list of computers is available as an Excel spreadsheet. Of note, Apple currently does not have one computer that meets the new requirements. Dell only has three. Lenova and Gateway currently offer the most models meeting the newest criteria."
Security

Submission + - Storm Worm Employs VM Detection (beskerming.com)

SkiifGeek writes: "The ISC has provided an interesting writeup on some of the virtual machine detection methods that the Storm worm is employing to avoid analysis, specifically routines that target VMWare and VirtualPC.

This is related to material covered recently about routines available to break out of sandboxes / VMs and demonstrates that if it is available publicly, then it is likely that it will make an appearance in malware before too long."

Announcements

Submission + - Linux 2.6.22 Kernel Released (kerneltrap.org)

An anonymous reader writes: Linux creator Linus Torvalds announced the official release of the 2.6.22 kernel, "it's out there now (or at least in the process of mirroring out — if you don't see everything, give it a bit of time)." The previous stable kernel, 2.6.21, was released a little over two months ago on April 25'th. New features in the 2.6.22 kernel include a SLUB allocator which replaced the slab allocator, a new wireless stack, a new firewire stack, and support for the Blackfin architecture. Source level changes can be tracked via the gitweb interface to Linus' kernel tree.
Networking

Submission + - Top Networking Pet Peeves

An anonymous reader writes: In 5 Networking Pet Peeves, former Network Computing editor David Strom takes aim at technologies he thinks aren't up to snuff. His list includes a couple of obvious ones: Why don't American cell phones work as well as the rest of the world's? and why can't Microsoft make a more secure Windows desktop?. More questionable may be his claim that Secure Socket Layer VPNs doesn't handle Network Access Control decently. "This is a new branch of enterprise security that tries to finesse the fact that SSL VPNs are really good at authenticating users, but when those users type on infected machines, they have less control and offer a false sense of protection," he writes. Do you agree? More importantly, what's on your list of networking tech that doesn't deliver the goods.
Microsoft

Submission + - The Top 15 most controversial Microsoft statements (computerworld.com.au)

StonyandCher writes: In the pantheon of controversial Microsoft comments CEO Steve Ballmer's recent quote about the Apple iPod: "There's no chance that the iPhone is going to get any significant market share. No chance. It's a US$500 subsidized item," ranks right up there.

But Between Ballmer and Chairman Bill Gates that comment would be hard pressed to crack the Top 15 all-time most controversial or even colorful things the two of them have uttered in the past oh, 20 years or so.

United States

Submission + - President Bush paving the way for a Dictatorship. (videosift.com)

Xyde writes: "from the site/video:

"The "National Security and Homeland Security Presidential Directive," with the dual designation of NSPD-51, and HSPD-20, as a Homeland Security Presidential Directive gives Bush total dictatorial powers — he just has to declare a national emergency. When declared it gives him the power to control all Federal, State, Local, Territorial and tribal governments as well as private sector organizations. It would also stop elections from being held." The press release is at http://www.whitehouse.gov/news/releases/2007/05/20 070509-12.html. How much more of this are we going to take?"

Mozilla

Submission + - First Tamarin vs. SpiderMonkey benchmarks (clipperz.com)

mbarulli writes: "Dan Smith, the Tamarin module owner, was kind enough to share with Clipperz the first official benchmarks of Tamarin vs. SpiderMonkey! These numbers are a very good indicator of the benefits that Tamarin could bring to Mozilla-based products. Dan says: "Performance will be greatly improved over current JavaScript implementations, especially for typed code. Tamarin does much better than SpiderMonkey in nearly all tests except some of the numeric tests where it is doing extra type conversions. But future optimizations will certainly address these situations too.""
Space

Submission + - Australia ignites scramjet in Earth's atmosphere

An anonymous reader writes: Australian researchers successfully tested their HyCAUSE scramjet today, confirming that it had reached a speed of Mach 10, or 10 times the speed of sound or 11,000 km/h (6,800 mph). HyCAUSE stands for the Hypersonic Collaborative Australia/United States Experiment, and it's a collaboration between the Australian Defence Science and Technology Organisation (DSTO) and the US Defense Advanced Research Projects Agency. The scramjet itself was carried aloft atop a TALOS rocket to an altitude of 530 km (330 miles). The scramjet kicked in, and it reached a top speed of Mach 10 during re-entry. In the future, scramjets could bring down flight times, with travelers going from London to Sydney in a couple of hours. They could also be used for satellite launches, and highspeed delivery. Of course, with the US military involved, there are other applications (but that's classified, so just use your imagination).
Space

Submission + - Hurricane Satellite Could Fail without Replacement

statemachine writes: An aging weather satellite crucial to accurate predictions on the intensity and path of hurricanes could fail at any moment and plans to launch a replacement have been pushed back seven years to 2016. Last year, forecasts were off an average of 111 miles two days in advance, a figure that has been cut in half over the past 15 years. But experts said that could grow 10 percent to 122 miles if the satellite is lost, causing the "cone of error" well known to coastal residents to expand. QuikScat, launched in 1999 and designed to last two to three years, provides key data on wind speed and direction over the ocean. Weather aircraft and buoys can also obtain similar measurements near a storm, but they do not provide a constant flow of data as QuikScat does. Now the satellite is limping along on a backup transmitter and has other problems. A European satellite called ASCAT is available, but it does not give scientists as clear a picture as QuikScat because the distance between the readings it takes is larger. A NASA and Department of Defense satellite called WINDSAT also measures wind speed and direction, but it too is beyond its expected lifespan, and scientists have had trouble using it to observe tropical weather systems. Even if money were immediately available, a replacement satellite is estimated to take at least four years and cost approximately $400 million to build.

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