Slashdot Mirror

TaeKwonDood tips us to news that a new cancer resistance treatment is going into clinical trials after being quite successful at eradicating cancer in mice. Researchers discovered that certain white blood cells called granulocytes from cancer-immune mice were able to cure cancer in other mice. Now, doctors are putting out the call for healthy granulocyte donors in order to test how well it works on humans. The article quotes lead researcher Zheng Cui saying, "In mice, we've been able to eradicate even highly aggressive forms of malignancy with extremely large tumors. Hopefully, we will see the same results in humans. Our laboratory studies indicate that this cancer-fighting ability is even stronger in healthy humans."

Socguy writes "A Russian art curator, Elena Basner, is claiming to have a foolproof method for determining whether or not particular paintings have been created since 1945. She claims that isotopes released into the environment by man-made nuclear explosions have found their way into types of the natural oils used to make paints."

CommanderData writes "PC World reports that Google's Android phone rollout is facing delays. Originally expected to have handsets on the market and in consumers' hands this summer, it appears that Q4 2008 or even sometime in 2009 is more likely. Software developers are also complaining that programming is difficult on the Android platform due to regular changes being made by Google." Update 21:14 GMT by SM: Google has (via Google Watch) refuted widespread claims that Android will be late, so I guess only time will tell.

David W. White writes "Wired mag's Danger Room carried an article today that highlighted how desperate the US Military's DARPA has become in its attempts to bring in additional brain power. The tactics include filmed testimonials, folders and even playing cards all screaming join DARPA! Where are all the Einsteins who want to be on the cutting edge for the Government?"

Gheorghe Dobrescu has to be the most unpopular man in Romania. He recently lost a mayoral race to a dead opponent. A supporter of the dead guy said, "I know he died, but I don't want change." Election authorities gave the post to Dobrescu in the end but some villagers have called for a new election. The dead mayor said that he was willing to forego his usual salary in lieu of fresh brains.

Corrupt writes "A Japanese firm has produced a 38 cm- (15 inch-) tall robotic girlfriend that kisses on command, to go on sale in September for around $175, with a target market of lonely adult men. Using her infrared sensors and battery power, the diminutive damsel named "EMA" puckers up for nearby human heads, entering what designers call its 'love mode.'" These are closed-mouth kisses, by the way.

ScentCone writes "A spokesman for China's foreign ministry says that — China being the 'developing nation' that it is — he doubts that his country has the sophistication to hack foreign systems. This in response to statements by two congressmen regarding apparent probing by China-based crackers into congressional systems for information about communication between US officials and activists in China."

Alotau writes "Chinese hacking is getting some serious Congressional attention. Two House members said Wednesday their Capitol Hill computers, containing information about political dissidents from around the world, have been hacked by sources apparently working out of China. Virginia Rep. Frank Wolf says four of his computers were hacked. New Jersey Rep. Chris Smith says two of his computers were compromised in December 2006 and March 2007. The two lawmakers are longtime critics of China's record on human rights."

FudRucker writes "For more than 400 years, astronomers have studied the sun from afar. Now NASA has decided to go there. 'We are going to visit a living, breathing star for the first time,' says program scientist Lika Guhathakurta of NASA Headquarters. 'This is an unexplored region of the solar system and the possibilities for discovery are off the charts.'"

TaeKwonDood writes "All paper is made of cellulose, which at the nanoscale level is quite strong, but paper processing makes large, fragile fibers that break easily. Researchers in Sweden have have come up with a manufacturing process that keeps the fibers small, resulting in 'nanopaper' with over 1.6 times the tensile strength of cast iron (214 megapascals vs. 130 mPa). And since cellulose is the most abundant organic compound on the planet, it's cheap to use compared to other exotic, expensive-to-produce options — such as carbon nanotubes."

TaeKwonDood writes to tell us that another step towards Star Trek's Holodeck technology has been taken with the advent of HoloVizio 3D. Allowing users to see and manipulate objects in 3D without the assistance of goggles, this distributed system shows a lot of promise. "The HoloVizio is a 3-D screen that will allow designers to visualize true 3-D models of cars, engines or components. Better yet, gesture recognition means that observers can manipulate the models by waving their hands in front of the screen. The function offers enormous scope for collaboration across the globe."

darkwing_bmf writes "Dungeons & Dragons 4th Edition rulebooks are now available. There's a review up at EuroGamer. Unfortunately, the online tools portion, D&D Insider, isn't ready yet."

TaeKwonDood writes "Automated machines have been around for decades. They have basically been dumb devices that do simple assembly tasks. But RepRap takes that a step further because, instead of assembling pre-fabricated parts, it creates 3-D objects by printing them — squirting molten plastic in layers — and then building them up as the plastic solidifies. It works on coat hooks, door handles and now it can even make working copies ... of itself. The miracle of additive fabrication, coming soon to a robotic overlord near you."

CWRUisTakingMyMoney writes "Companies that assign addresses for Web sites appear to be cutting corners on security more when they assign names in certain domains than in others, according to a report to be released Wednesday by antivirus software vendor McAfee Inc. McAfee found the most dangerous domains to navigate to are .hk, .cn, and .info. Of all .hk sites McAfee tested, it flagged 19.2 percent as dangerous or potentially dangerous to visitors; it flagged 11.8 percent of .cn sites and 11.7 percent of .info sites that way. A little more than 5 percent of the sites under the .com domain — the world's most popular — were identified as dangerous."

madgreek writes "Last year I wrote of my switch from XP to Ubuntu at work. Now a year later, I am back to reflect on one year of being extremely productive at work using (almost) nothing but open source software in a Microsoft world."

sufijazz writes "The US government is not alone in wanting to snoop on everything citizens do over email/phone. The Indian government wants that right too. RIM is stating they have no means to decrypt, no master key, and no back door to allow the government to access email." The article notes that 114,000 BlackBerries are in use on the Indian subcontinent. The government is concerned about attacks by militants and sees the BlackBerry as a security risk.

Italy's Fortezza Medicea top-security prison may be the only prison that has more people trying to get in than escape. A couple of nights a year the prison is turned into a restaurant in an attempt to teach inmates job skills and raise money for charity. To get a reservation you have to pass a background check and submit to metal detector tests before seating. Best of all, when someone talks about a tossed salad at Fortezza Medicea, they mean lettuce.

GonnaBRichYeahYeah! writes "My dad lives down a dirt road 500 meters off the main road. The cable company will not put cable down his lane for any less than the ridiculous sum of $10,000. And he cannot get phone line DSL since he is so far away from the central terminal, so he relied on painful 22k/sec dial-up for access to the Internet. He got sick of it and relies on Hughes satellite Internet, at $60/month, but he still has to be connected to a phone line to upload to the Internet. It's not a good solution, but better than dial-up. His friend lives on the corner of the main drag with his lane and has cable, thus hi-speed Internet. I suggested that he get a wireless access point, and put it at his friend's house and then get a wireless card for access. The problem is that no wireless routers go that far (max range of -N is 200 feet) and WiMax is too complex for a 70-year old man. Any suggestions from Slashdot crowd would be helpful." Plenty of people make wireless links over longer distances, but often they're not suited for people who want simplicity and reliability. What's the best out there right now?

Anonymous writes "Some of you may have seen 'The 6th Day,' the movie with Arnold Schwarzenegger a few years back. If you recall there was a 're-pet' cloning service to get your dog back if you ever lost them. Enter 'Best Friends Again': 'A US biotech company on Wednesday announced it will auction off the right for five dog owners to have their furry best friend cloned, with bidding starting at 100,000 dollars. "BioArts International ... will sell five dog cloning service slots to the general public via a worldwide online auction," the California-based biotech start-up said in a statement.'"

A Brazilian tour company is in hot water, after it was revealed that it was offering tours of Rio de Janeiro slums, including photos with the local drug gang members. For $55 you get a 4 hour tour of Rocinha, the city's largest slum, including a visit to the "bocas de fumo" where traffickers sell drugs to Rio residents. If you don't want to pay for the flight to Brazil, I will drive you into the slums of Detroit for the same price. Pictures with gang members are at their discretion.

AHTuttle writes to mention Comcast, recently under fire for throttling P2P traffic, has decided to invest in a P2P video-delivery startup called GridNetworks. "Seattle-based GridNetworks on Monday said that Comcast would make an unspecified investment in the company and collaborate on developing so-called peer-to-peer file-sharing techniques that are 'friendly' to Internet service providers."

Peer writes "The Dutch government has officially decided that it will no longer use voting machines (Babel Fish Translation) for elections. So it's pencil and paper from now on. Activists have been campaigning against the use of voting machines for some time."

CowTipperGore writes "The AP reports (via Yahoo!) that Nintendo of America Inc. has been ordered to pay a small East Texas gaming company $21 million for infringing on a patent while designing controllers for its popular Wii and GameCube systems. No stranger to lawsuits over controller designs, a Nintendo spokesman said the company will seek an appeal. The suit was originally filed in 2006 and included Microsoft. Microsoft's aggressive legal push back apparently helped as they reached a (confidential) settlement agreement before the case went to trial."

AntOverlords writes "Voracious swarming ants that apparently arrived in Texas aboard a cargo ship are invading homes and yards across the Houston area, shorting out electrical boxes and messing up computers. They have ruined pumps at sewage pumping stations, fouled computers and at least one homeowner's gas meter, and caused fire alarms to malfunction. They have been spotted at NASA's Johnson Space Center and close to Hobby Airport, though they haven't caused any major problems there yet."

NotBornYesterday writes "After spending $190,000 and 'countless hours' building a set of jet-powered wings, a Swiss man has successfully demoed this ultimate mother-of-all-toys. After jumping from a plane like a skydiver, he then lit the four jet engines and proceeded to fly around a valley in the Alps at up to 186 miles per hour. His site is here, if you want to see shots of him in action. 'I still haven't used the full potential,' he said."

Christopher Blanc writes to let us know that although BECTA, the British Educational Communications and Technology Agency, has filed a complaint with EU regulators about Microsoft's business practices, the European Commission won't be doing anything particular about it. BECTA claimed that the OOXML format discourages competition. BECTA lodged a similar complaint with the UK Office of Fair Trading last October. A Commission press officer said, "We are already looking into the issues raised in that complaint already and we are not treating it as a formal complaint to us."

TaeKwonDood writes "Is it reptile, bird or mammal? Some of each. Does it have venom, lay eggs and lactate? Yes. Upon discovery in 1798, fellow scientists thought it was for an episode of 'Thou hast been Punk'd,' but this Australia native, on home on land and in water, is real and, finally, it gets its own decoded genome. It's no surprise the DNA is as messed up as the critter itself."

vossman77 writes "I was looking into renewable energy from a hobbyist perspective, maybe generating a few watts of solar or wind power, just to reduce my electric bill. But upon further review, I found out that I need a special grid-tied AC inverter that shuts off when the grid turns off (for worker safety reasons) and makes the current in-phase with the grid. These two additional features, over the cheap inverters sold at department store, make the cost upwards of $2000, but support more watts than I need. While this is fine for large-scale projects, it is out of range for a small scale hobbyist. A Google search came with some home-brew hacks at best. So, are there any Slashdotters out there doing small-scale renewable energy projects with grid-tied systems? What are other options for the hobbyist to play around with renewable energy, other than charging a cell phone?"

Dionysius, God of Wine and Leaf, points out a new wrinkle to Microsoft's pursuit of Yahoo. The most recent quarterly results, which saw Microsoft's earnings drop by 6% from the previous year (revenue from Windows alone was down 24%), have caused the stock to dip. This has reduced the value of the cash-and-stock offer from its original $44B to something nearer $40B. Yahoo, of course, has maintained all along that the original offer was lowball. A business professor is quoted: "Whatever leverage [Microsoft] built up in the last few days could be slipping away."

crazyeyes notes the leak of 7 pages of secret Microsoft information on the upcoming Service Pack for Windows XP. Quoting: "We were the first to break the news on the release of Windows Vista Service Pack 1 and the final RTM schedule of Windows XP Service Pack 3. Now, we will be the first to release the full details on Microsoft's Windows XP Service Pack 3, which as we know will be available for manual update on April 29, 2008."

Dionysius, God of Wine and Leaf, brings news that Dell will be offering Windows XP pre-installed on their computers past the June 30 cut-off date. Computers purchased with Vista Business or Vista Ultimate past June 30 will come with a copy of XP Pro. Dell plans to simply install that copy upon request to save users a step. Perhaps this will help Microsoft officials make up their minds about another extension.

Dionysius, God of Wine and Leaf, points to a Yahoo! story which begins "Google on Wednesday handed over data stored by suspected pedophiles on its Orkut social networking site to Brazilian authorities, ceding to pressure to lift its confidentiality duty to its users, officials said."

Dionysius, God of Wine and Leaf brings news that Sun Microsystems will be removing the last restrictions on Java to make it completely open source. Sun wants Java to be easily available for use in Linux distributions. We've discussed the steps Sun has taken to open-source Java over the past couple years. From Yahoo! News: "'We've been engaging with the open-source community for Java to finish off the OpenJDK project, and the specific thing that we've been working on with them is clearing the last bits that we didn't have the rights,' to distribute, Sands said. 'Over the past year, we have pretty much removed most of those encumbrances.' Work still needs to be done to offer the Java sound engine and SNMP code via open source; that effort is expected to be completed this year. Developers, though, may be able to proceed without a component like the sound engine, Sands said.

OMNIpotusCOM writes "Noted astrophysicist Stephen Hawking thinks that alien life is likely, albeit primitive, according to a lecture delivered at George Washington University in honor of NASA's 50th anniversary. It begs the question of if we need to consider a Prime Directive before exploring or sending signals too far into the depths of space."

epsas writes "On Cosmonaut's Day (April 12th 2008) the Russian Federal Space Agency (Roskosmos) announced that they will cease it's $40,000,000-a-flight space tourism enterprise. Vitaly Perminov, the head of Roskosmos, elaborated on this statement by citing national criticism of the space tourism project; all the while reiterating Roskosmos's focus on the International Space Station and the new launch site at Vostochny Cosmodrome: 'Vitaly Lopota, the president of the Energia space rocket corporation, said he believes space tourism is a forced measure compensating for insufficient financing of the Russian space program.' This statement (made the day before) by Vitaly Lopota follows another announcement that 'Energia is ready to send missions to the Moon and Mars if told to do so by the government.'"

CWRUisTakingMyMoney writes "Yahoo! Finance has a story about the defunct Soviet Union's .su TLD. 'Sixteen years after the superpower's collapse, Web sites ending in the Soviet ".su" domain name have been rising — registrations increased 45 percent this year alone. Bloggers, entrepreneurs and die-hard communists are all part of a small but growing online community resisting repeated efforts to extinguish the online Soviet outpost.'"

crazyeyes writes "Intel has way too many Core 2 processor models. No one really knows if it's worth paying $100 more for a Core 2 Quad, instead of a Core 2 Duo. And when tech websites start interjecting codenames like Wolfdale, Kentsfield and Yorkfield, you know the battle is lost. All we want is a simple guide on the REAL WORLD performance differences between the many Intel Core 2 processors. How do they perform in games like Crysis, 3D rendering software, video encoding software, etc.? Fortunately, there is such a guide — just simple comparisons of the relative performance of these CPUs."

geoffrobinson writes "Roughly Drafted has obtained internal IBM documents detailing the results of a small pilot program for internal use of Macs. Positive and negative results were detailed, but overall most participants were happy with their Mac experience. The pilot will be expanded this year. One advantage cited: less reliance on Windows. So it seems a mix of Macs, PCs, and Linux boxes are in IBM's future. Given the history between IBM and Microsoft, this is quite interesting."

Foobar of Borg writes "The AP is reporting that the US will soon be collecting the DNA of anyone who is arrested by a federal law enforcement agency and any foreigner who is detained, whether or not charges are eventually brought. This begins to bring the US in line with the UK which, as discussed before on Slashdot, is trying to collect DNA of 'potential criminals' as young as five. DHS spokesman Russ Knocke stated that 'DNA is a proven law-enforcement tool.'"

Foobar of Borg writes "The AP is reporting that the US will soon be collecting the DNA of anyone who is arrested by a federal law enforcement agency and any foreigner who is detained, whether or not charges are eventually brought. This begins to bring the US in line with the UK which, as discussed before on Slashdot, is trying to collect DNA of 'potential criminals' as young as five. DHS spokesman Russ Knocke stated that 'DNA is a proven law-enforcement tool.'"

crazyeyes writes "Those crazy counterfeiters have done it again. First they made counterfeit Intel boxed processors, now they are counterfeiting DFI motherboards! Quoting: 'The detail to the packaging, documentation and the motherboard printing really makes you wonder if the people responsible for this have only limited their activities to DFI motherboards. It's quite possible that there are fake ASUS or Gigabyte motherboards in the market as well.'" Update: 04/15 12:59 GMT by Z : As noted in the comments, the articles offer no speculation as to the origins of the counterfeits. Updated to clarify that.

In a bid to save children from frosting and fun, a New Zealand school has banned bringing birthday cake to school. Principal Megan Bowden says, "Oteha Valley has a large number of pupils born in September and October, and there can be up to four cakes a week in some classes. It had gotten to the point where parents thought they were required to provide a cake for their child's birthday." She adds that since they have defeated cake so easily, the school board plans on tackling the mirth problem next and god willing, smiles by the end of the year.

r3lody writes "Configuring Juniper Networks NetScreen & SSG Firewalls (CJNNSF), written and edited by Rob Cameron of Juniper, is an ambitious attempt to provide a comprehensive approach to configuring Juniper’s flagship line of firewall appliances. Unfortunately there are a large number of errors in the presentation that distract and detract from its mission. CJNNSF is Rob Cameron’s second book. Helping him are six contributing writers: Matthew Albers and Mike Swarm of Juniper, and security consultants Ralph Bonnell, Mohan Krishnamurthy Madwacher, Brad Woodberg, and Neil R. Wyler. Collectively they have produced a book with a lot of in-depth information that will prove extremely useful to anyone working with Juniper devices. It suffers from an apparent lack of proper editorial oversight. Numerous examples exist of inconsistent styles, bad grammar, notes to other authors that were inadvertently left in, etc. Nonetheless, the actual content still makes this book worthwhile." Read below for the rest of Ray's review. Configuring Juniper& Networks NetScreen& & SSG Firewalls author Rob Cameron (Editor) pages 745 publisher Syngress rating 5/10 reviewer Ray Lodato ISBN 1597491187 summary Provides fairly complete configuration details, but needs a lot of cosmetic improvement.

The progression through the book is well thought out and builds nicely from previous chapters. Each chapter starts with its own introduction, and ends with a summary, a “fast-track” bulleted list of highlights, and a small FAQs section.

Throughout much of the book, the reader is presented with a set of amateurish figures and tables. While the content is there, the presentation is reminiscent of high-school papers. I found myself wondering why the publisher didn't spend more time cleaning up the book to provide a more finished look. Another item that shows a lack of editorial oversight was the inclusion of a note from one author to another that was apparently left in the text by mistake (see the Solutions Fast Track at the end of chapter 5 to see what I mean). I was amused to see this exchange carried over to the duplication of the book online on the Books24x7 website.

I was upset to see some inaccuracies in the text. One key example is mistaking the TCP sequence number as a packet counter instead of a byte counter. When I read that, I began to mistrust the accuracy of the rest of the book. Thankfully, the Juniper-specific information appears accurate. A more in-depth technical review should have caught such an obvious error.

While Chapter 2 provides valuable information comparing the various models of the NetScreen and SSG/ISG series of security devices, I did have a problem with the formatting of the tables. There are a few cases where I had to look at a table a few times before I realized that information wrapped from the last column back into the first. I also took exception to one statement in particular: ScreenOS is more secure than open source operating systems because the general public cannot inspect the source code for vulnerabilities. Huh? Isn’t one of the reasons why open source is so secure is that many eyes have been able to review it and refine it?

There are three ways to manage Juniper devices: the CLI, the WebUI, and NSM (NetScreen Security Manager). While NSM makes the most sense in an enterprise rollout, the book declared it outside its scope. This does limit the usefulness of the book a little, but much of the WebUI detail is replicated in the NSM, so you may not be missing too much.

Later chapters in the book do dig into most of the capabilities of the Junipers, with examples detailed enough to help you understand how to apply it to your own uses. Policy configuration, attack detection and defense, high availability and virtual systems all have their own detailed chapters. Each chapter provides a wealth of information, once you ignore the amateurish styling.

Overall, you can find most of what you would need to know to choose, configure, and manage Juniper firewalls after reading this book. Unfortunately, you will also find many confusing examples, tables, and formatting inconsistencies. So many times I found myself thinking that my high-schooler would have done a better job laying out this book and making sure the reader wasn’t disturbed by the overall look. Despite that, the actual content does make this worthwhile if you need to understand the Juniper line of devices. I just hope that Syngress and the authors will correct these problems and release a second edition of the book.

You can purchase Configuring Juniper& Networks NetScreen& & SSG Firewalls from amazon.com. Slashdot welcomes readers' book reviews -- to see your own review here, read the book review guidelines, then visit the submission page.

Socguy writes "According to a New Zealand scientist, Jim Salinger, the price of beer in and around Australia is going to be under increasing upward pressure as reductions in malting barley yields are experienced as a side effect of our ongoing climate shift. "It will mean either there will be pubs without beer or the cost of beer will go up," Mr. Salinger told the Institute of Brewing and Distilling convention."

Ryan writes "HP had unveiled their version of a miniaturized laptop for school kids. The tiny device boasts speeds up to 1.6 gigahertz. They haven't yet decided on a name, but 'netbooks' is one possibility. They will be used for surfing the Internet and doing other basic tasks like word processing. The company plans to have 50 million units available in the marketplace by 2011. Optical drives have been left out to prevent kids from playing 'unauthorized games.' Weighing less than 3 pounds with a tiny 8.9 inch screen, the machines start below $500 for a Linux-based model. Prices are expected to be higher for Windows Vista models."

Ryan writes "HP had unveiled their version of a miniaturized laptop for school kids. The tiny device boasts speeds up to 1.6 gigahertz. They haven't yet decided on a name, but 'netbooks' is one possibility. They will be used for surfing the Internet and doing other basic tasks like word processing. The company plans to have 50 million units available in the marketplace by 2011. Optical drives have been left out to prevent kids from playing 'unauthorized games.' Weighing less than 3 pounds with a tiny 8.9 inch screen, the machines start below $500 for a Linux-based model. Prices are expected to be higher for Windows Vista models."

azuredrake writes "NCSoft's City of Heroes has just announced that in-game ads are being added to the game, provided by an advertising firm Double Fusion. However, unlike in many games, the ads being brought to CoH have been defined as 'always optional'. The publishers see the ads as a purely additional revenue stream, not as something that will ever allow advertisers to affect game content. Commentary is available at Gamasutra. Is making advertisement volunteer-based a viable way to get around cynicism? The tone of these ads seems to be 'check them out to help the game'. Are there any sites or services in which you'd voluntarily look at ads to lend a hand? "

r3lody writes "Finding a single book that encompasses what you want to learn can be difficult. Most cover a few portions of a subject in depth and skim over (or omit) others. Other books will cover each topic at about the same level: high enough to give an impression of what can be done, but not with enough depth to do it without a lot of effort. In A Practical Guide to Ubuntu Linux, Mark G. Sobell has created a single volume that gives the reader enough information to effectively install, configure and run workstations and servers using Ubuntu Linux. He has come the closest I have seen to containing all of the necessary information without being too shallow. Granted, to include everything you would want to know about Ubuntu Linux would take several books of this size, but this particular one provides most users the best bang for the buck. A DVD with the Gutsy Gibbon release of Ubuntu in a directly bootable form is included with the book." Read below for the rest of Ray's review. A Practical Guide to Ubuntu Linux author Mark G. Sobell pages 1200 publisher Prentice Hall PTR rating 10/10 reviewer Ray Lodato ISBN 013236039X summary A complete guide to installing and running Ubuntu Linux for beginning to intermediate users With over two decades of experience related to Unix and Linux, Mark G. Sobell has authored almost two dozen books on the subject. I had previously read and reviewed his book A Practical Guide to Red Hat Linux: Fedora Core and Red Hat Enterprise Linux (Second Edition) and found it the highest quality book I had yet read on Linux. This, his latest book, bears many similarities to the other text, including its high quality. The overall structure is like that of a textbook, providing a summary and exercises at the end of each chapter, as well as copious cross-references.

A Practical Guide to Ubuntu Linux is broken up into five parts containing 27 chapters in all. After providing the now obligatory history of Linux and the GPL, Part I uses two chapters to provide an overview of, and step-by-step instructions for, installing Linux. The overview provides information about the process including how to try Linux with the Live DVD supplied, planning your hard disk layout, acquiring a newer version of Ubuntu, and the install process in general. The step-by-step chapter goes into great detail on each step of the process, using both the graphical and textual installation paths. It also throws in additional detail on how to configure the X server.

Now that you have Linux in a runnable form, Part II provides higher-level information that shows newer Linux users what they can do. Four chapters serve to introduce basic Linux to the user. Topics include how to update, install and remove program packages, how to use the command line (and some basic utilities such as cat, ls, more, less, etc.), how the filesystem is laid out, shell concepts such as pipes and job control, and where to find additional documentation.

Part III uses another four chapters to dive deeper into the Bourne Again Shell (BASH), the GUIs, and networking. First the X Window System is described, followed by the GNOME and KDE desktops. BASH is covered in two separate chapters, inexplicably separated by the chapter on networking. The first BASH chapter provides the reader with information on startup files, command history, redirection, etc. The other BASH chapter goes into depth regarding programming BASH scripts. The intervening networking chapter provides a basic understanding of network protocols and some utilities such as ping, traceroute, host and dig.

Up to this point, Mark has been showing the user how to use Ubuntu Linux with little modification. Starting with Part IV, he describes how to perform the more common configuration tasks. Using seven chapters and over 200 pages, Part IV provides a great deal of detail regarding system administration. Starting with some core concepts (running as root, sudo, startup scripts, wrappers, recovery mode, etc.), Mark then leads the reader into the nooks and crannies of the filesystem. The following chapter shows how to add and remove applications using apt, aptitude, dpkg, wget and BitTorrent. Printing using CUPS is given its own chapter next, as is the (at least to me) daunting task of rebuilding the system kernel. The last two chapters in Part IV cover the miscellaneous administration tasks of adding, changing, and deleting users and groups, backing up and restoring files, managing the various logs, and setting up your network connections (both wired and wireless).

The final section, Part V, uses nine chapters to go into depth on set up various servers and use their clients. OpenSSH, FTP, exim4 (for mail), NIS, NFS, Samba, DNS/BIND, the firewall (firestarter and iptables), and finally Apache. Each of the chapters provides Jumpstart sections to help you install and configure each server quickly, and enough detail to handle the more common configuration changes.

There are five appendices covering regular expressions, where to get help, general security considerations, the Free Software Definition, and a bullet list of major items added to the 2.4 kernel to form the 2.6 kernel. These are followed by a fairly comprehensive glossary and index.

Overall, A Practical Guide to Ubuntu Linux by Mark G. Sobell provides all of the information a beginner to intermediate user of Linux would need to be productive. The inclusion of the Live DVD of the Gutsy Gibbon release of Ubuntu makes it easy for the user to test-drive Linux without affecting his installed OS. I have no doubts that you will consider this book money well spent.

You can purchase A Practical Guide to Ubuntu Linux from amazon.com. Slashdot welcomes readers' book reviews -- to see your own review here, read the book review guidelines, then visit the submission page.

theodp writes "IBM has been temporarily banned from receiving future contracts with federal agencies, the Environmental Protection Agency confirmed on Monday. The suspension went into effect last Thursday due to 'concerns raised about potential activities involving an EPA procurement,' the agency said in an e-mailed statement. Under a reciprocal agreement among federal agencies, when one issues a ban, the others follow it. The EPA said it will not comment further on the matter. An IBM spokesman said he had no immediate comment. 'You don't see this very often, particularly for large companies,' commented a stunned industry analyst, mentioning a bankrupt MCI as a notable exception. IBM earned an estimated $1.5 billion in revenue from federal prime contracts in fiscal 2007."

crazyeyes writes "This is breaking news. Microsoft has not only decided to support ray tracing in DirectX 11, but they will also be basing it on Intel's x86 ray-tracing technology and get this ... it will be out by the end of the year! In this article, we will examine what ray tracing is all about and why it would be superior to the current raster-based technology. As for performance, well, let Intel dazzle you with some numbers. Here's a quote from the article: 'You need not worry about your old raster-based DirectX 10 or older games or graphics cards. DirectX 11 will continue to support rasterization. It just includes support for ray-tracing as well. There will be two DirectX 11 modes, based on support by the application and the hardware.'"