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Domain: classhelper.org
Stories and comments across the archive that link to classhelper.org.
Stories · 27
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SORBS Blocklist Reportedly Sold For $451K
palegray.net writes "SORBS, a well-known email blocklist provider, has reportedly been sold for $451k. Early reports indicate an acquisition by GFI, a company specializing in various communications services. In recent years, SORBS has been the target of frequent accusations of mismanagement and poor conduct, leading many to wonder if this turn in events might signal a chance for improved behavior. Citing lack of ISP support, the blocklist released statements earlier this year that they would be shuttering their operation." -
Ubuntu 9.10 Officially Released
palegray.net writes "The latest version of Ubuntu 9.10 (Karmic Koala) has been released. Offering numerous enhancements for both desktop and server environments, this release includes notable features like Ubuntu Enterprise Cloud images, the Ubuntu One 'personal cloud,' and Linux kernel version 2.6.31. Please be sure to use a release mirror close to your geographic location to help reduce the stress on Ubuntu's primary servers; using BitTorrent for downloads can help alleviate the load even more. If your organization has adequate network and server resources, please consider hosting a mirror as well." -
How To Build an Openfire Chat Server On Debian 5
palegray.net writes "Inspired by a recent Ask Slashdot, I've written a step-by-step tutorial for setting up an Openfire server on Debian Linux, for those interested in running their own open source collaboration server. Aimed at those just getting started with collaboration software, the tutorial shows precisely how to get Openfire up and running quickly on a base Debian install, and offers a basic feature tour of the software's plugin and IM gateway functionality." -
How To Build an Openfire Chat Server On Debian 5
palegray.net writes "Inspired by a recent Ask Slashdot, I've written a step-by-step tutorial for setting up an Openfire server on Debian Linux, for those interested in running their own open source collaboration server. Aimed at those just getting started with collaboration software, the tutorial shows precisely how to get Openfire up and running quickly on a base Debian install, and offers a basic feature tour of the software's plugin and IM gateway functionality." -
Beware the Perils of Caffeine Withdrawal
palegray.net writes "CNN is running an article on the notorious effects of caffeine withdrawal, a problem that seems to be affecting an increasing number of people. Citing numerous reasons why people might need to cut back on their caffeine intake (pregnancy, pre-surgery requirements, etc), the story notes a significant number of people who are simply unable to quit. I drink around eight cups of coffee a day, along with a soda or two, and I definitely suffer from nasty withdrawal symptoms without my fix." -
Inside the New Science of Neuroengineering
palegray.net writes "Wired brings us a look into the world of neuroengineering, the science of hacking the brain to improve its function. Dr. Ed Boyden is the director of MIT's Neuroengineering and Neuromedia Lab, focusing on innovative methods of physically altering neuroanatomy for various purposes. As useful as discoveries in the field may be, the work certainly raises moral and ethical questions. From the article: '"If we surgically or electrically modify someone's personality... that raises many questions about personal identity, (of) who we are at our core," says Dr. Debra Matthews of The Berman Institute of Bioethics. "We place ourselves in the mind and therefore the brain. (Mood-altering surgery) feels like fundamentally modifying who a person is."'" -
Teachers Need an Open Source Education
palegray.net writes "Teachers are sorely in need of an education in what open source software is, what it isn't, and how it can benefit their students. A recent news story at the Reg discussed the case of a Texas teacher who accused those distributing Linux to students of committing criminal acts. A HeliOS blog entry exposes a 'higher education' culture of apathy, lies, and fear of open source software. Things have got to improve, and that improvement needs to start with misguided teachers getting their facts straight." -
Obama Sides With Bush In Spy Case
palegray.net is one of many who writes "President Obama has publicly sided with the Bush administration on the question of whether the President should be allowed to establish warrantless wiretapping programs designed to monitor US citizens. The President has asked a federal judge to stay a ruling that would allow key evidence into the domestic spying case against the government. 'Thursday's filing by the Obama administration marked the first time it officially lodged a court document in the lawsuit asking the courts to rule on the constitutionality of the Bush administration's warrantless-eavesdropping program.'" jamie points out that Obama's views and opinions were made clear through his Senate vote and numerous public statements, but many others see this as a disappointing start to an administration promising transparency and openness. -
Evolution of Intelligence More Complex Than Once Thought
palegray.net writes "According to a new article published in Scientific American, the nature of and evolutionary development of animal intelligence is significantly more complicated than many have assumed. In opposition to the widely held view that intelligence is largely linear in nature, in many cases intelligent traits have developed along independent paths. From the article: 'Over the past 30 years, however, research in comparative neuroanatomy clearly has shown that complex brains — and sophisticated cognition — have evolved from simpler brains multiple times independently in separate lineages ...'" -
Voting Machines Routinely Failing Nationwide
palegray.net writes "Voting machines in several critical swing states are causing major problems for voters. A Government Accountability Office report and Common Cause election study [PDF] has concluded that major issues identified in the last presidential election have not been corrected, nor have election officials been notified of the problems. How long can we afford to trust our elections to black box voting practices? From the article: 'In Colorado, 20,000 left polling places without voting in 2006 because of crashed computer registration machines and long lines. And this election day, Colorado will have another new registration system.'" -
Spy Agencies Turn To Online Sources For Info
palegray.net sends us to US News and World Report for an article about increased spy agency use of online sources. Turning to well-known destinations such as NPR and Wikipedia, folks in the intelligence world are increasingly filling their reports with information gleaned from the public domain. "A few days ago, a senior officer at the Pentagon called his intelligence officer into his office. The boss had heard a news report about China while driving to his office and wanted some answers. It wasn't a tough assignment, given the news coverage, but there was a hitch. 'There was plenty of information in the public domain about the topic,' recalls the intelligence officer, a 10-year veteran. 'And yet, if there wasn't some classified information cited in my report, the boss would never believe it was accurate.'" -
Prions Observed Jumping Species Barrier
palegray.net writes "Nature is reporting on new findings that prions jump species barriers. Believed to be responsible for ailments such as Creutzfeld-Jakob disease and 'mad cow' disease, prions are thought to disrupt biological processes by causing normal proteins to fold abnormally. Researchers at the University of Texas Medical Branch in Galveston have observed infectious prions from hamsters causing abnormal protein development in mice, along with a range of other observations on prion actions in test tube environments. From the article: '... they also found that when a prion jumps species, it produces a new kind of prion. "This is very worrisome," says Claudio Soto, who led the research, published in Cell. "The universe of possible prions could be much larger than we thought."' Sounds like another good reason to donate your spare CPU cycles to projects like Folding@home." -
New Algorithm Boosts Network Efficiency
palegray.net writes "Researchers at the University of California have developed a new network routing algorithm that has the potential to significantly boost Internet traffic routing efficiency. This new approach focuses on the needs of dynamic networks, where connections are frequently transient. From the article: 'What the team did with their new routing algorithm, according to Savage's student Kirill Levchenko, was to reduce the "communication overhead" of route computation — by an order of magnitude.' For the technically inclined, the full research publication (PDF) is available." -
Nonprofit Group Sends Filesharing Propaganda To Students
palegray.net writes "The National Center for State Courts, a nonprofit organization, has sent file-sharing propaganda to thousands of students. The supposedly 'educational' materials, presented in the form of a comic strip, are intended to frighten students with gross exaggerations of the legal consequences of sharing music online (lose your scholarship to college, go to jail for two years, and more). From the article: '"The Case of Internet Piracy," however, reads like the Recording Industry Association of America's public relations playbook: Download some songs, go to jail and lose your scholarship. Along the way, musicians will file onto the bread lines. "The purpose is basically to educate kids — middle school and high school-aged about how the justice system operates and about what really goes on in the courtroom as opposed to what you see on television," said Lorri Montgomery, the center's communications director.' I'm not encouraging anyone to break any laws, but this is ridiculous. What's truly discouraging is the fact that several judges appear to be in full support of this sort of 'education.' The propaganda material is available in PDF form, and it lists the judges and others involved in its creation. Wired's post has a summary of the story (which is good, since the story is awful), and Techdirt notes a couple of the legal inaccuracies. -
Yale Students' Lawsuit Unmasks Anonymous Trolls
palegray.net writes "Two female Yale law school students have used the courts to ascertain the identities of otherwise anonymous posters to an Internet forum, with the intent of prosecuting them for hateful remarks left on the boards. At a minimum, the posters' future legal careers are certainly jeopardized by these events. While I'm not certainly not supporting or encouraging hateful speech online, these controversial actions hold potentially far-reaching consequences for Internet privacy policy and free speech." According to the linked Wired Law article, "The women themselves have gone silent, and their lawyers — two of whom are now themselves being sued — are not talking to the press." -
Workings of Ancient Calculating Device Deciphered
palegray.net writes "Scientists have discovered new meaning behind the functions of the Antikythera Mechanism, which has been referred to as the oldest known analog computing device. In addition to providing a means to calculate the dates for solar eclipses, the device apparently tracked the four-year cycles of the Olympiad. From the New York Times article: 'Only now, applying high-resolution imaging systems and three-dimensional X-ray tomography, have experts been able to decipher inscriptions and reconstruct functions of the bronze gears on the mechanism. The latest research has revealed details of dials on the instrument's back side, including the names of all 12 months of an ancient calendar.'" -
Congress Tries To Strip Power From Anti-Wiretap Judge
palegray.net writes "Congress is attempting to strip US District Chief Judge Vaughn Walker of his power following his ruling against the government regarding immunity for telecoms in the NSA wiretapping case. Walker was appointed to the bench by President Bush, and has attempted to enforce existing prohibitions against warrantless wiretapping. From the Wired article: 'Walker, the chief judge of the Northern District of California, affirmed that the Foreign Intelligence Surveillance Act is the exclusive legal method for conducting surveillance inside the United States against suspected spies and [terrorists]. The Bush Administration argues that Congress's vote to authorize military force against Al Qaeda and the president's inherent war time powers were exceptions to the exclusivity provision.' The article makes the observation that Congress seems to be having difficulties bringing itself to enforce the laws that it has previously passed regarding wiretapping, and seems more interesting in silencing opposing viewpoints." Update: 07/06 16:15 GMT by SS: As several readers have noted, the vote would only limit Judge Walker with respect to this particular case. His other responsibilities would be unaffected. -
The Future Has a Kill Switch
palegray.net writes "Bruce Schneier brings us his perspective on a future filled with kill switches; from OnStar-equipped automobiles and city buses that can be remotely disabled by police to Microsoft's patent-pending ideas regarding so-called Digital Manners Policies. In Schneier's view, these capabilities aren't exactly high points of our potential future. From the article: 'Once we go down this path — giving one device authority over other devices — the security problems start piling up. Who has the authority to limit functionality of my devices, and how do they get that authority? What prevents them from abusing that power? Do I get the ability to override their limitations? In what circumstances, and how? Can they override my override?' We recently discussed the Pentagon's interest in kill switches for airplanes. At what point does centralizing and/or delegating operational authority over so much of our lives become a dangerous practice of its own?" -
Helping Some Students May Harm High Achievers
palegray.net writes "According to a new study performed by the Thomas B. Fordham Institute in Washington, increased emphasis on helping students with a history of lower academic achievement results in lower performance for high achievers. This trend appears to be related to the No Child Left Behind Act. Essentially, programs designed to devote a large number of resources to assisting students who are deemed to be 'significantly behind' leave little room for encouraging continued academic growth for higher-performing students." -
Telcos Compete For Education Broadcast Spectrum
palegray.net writes "A consortium of large telecommunications companies are competing to deliver high speed wireless Internet access over frequencies allocated for educational use. The schools who control the frequencies, long frustrated by difficulties in obtaining cost-effective net access, find the tables turned in their favor. From the LA Times: '... technological advances have made the airwaves easier to use — and much more lucrative to hold. For Cal State Los Angeles, Long Beach, Dominguez Hills, Fullerton and Pomona, as well as schools and religious institutions around the country, holding a license to the spectrum as the wireless industry expands has been like finding a winning lottery ticket in a dresser drawer. The agreements funnel thousands and even millions of dollars annually to schools at a time of budget cutbacks and economic slowdown.' -
On This Date in 1964, the First BASIC Program
palegray.net notes that on this day in 1964, the first BASIC program was run. From the Wired article:"Mathematicians John G. Kemeny and Thomas E. Kurtz had been trying to make computing more accessible to their undergraduate students. One problem was that available computing languages like Fortran and Algol were so complex that you really had to be a professional to use them. BASIC is still alive and well these days, from Microsoft's VB.net to cross-platform variants like REALbasic. For the old-school among us, there's always Joshua Bell's Apple II BASIC emulator implemented in Javascript." -
Coming Soon — Cyborg Farmers
palegray.net writes Robots.net covers an article about robotic exoskeletons for Japanese farmers. These exoskeletons would provide increased strength and support for manual labor intensive tasks. More information can also be found at robots-dreams.com. 'The robotic suit relies on ultrasonic motors along with various sensors and wireless networking gear. [...] The mass-produced version of the suit is expected to weigh in at 8 kilograms and cost about 200,000 yen.'" -
Digital Watermarks to Replace DRM
palegray.net noted a wired story about an industry trend towards watermarking and away from DRM. It says "With all of the Big Four record labels now jettisoning digital rights management, music fans have every reason to rejoice. But consumer advocates are singing a note of caution, as the music industry experiments with digital-watermarking technology as a DRM substitute. Watermarking offers copyright protection by letting a company track music that finds its way to illegal peer-to-peer networks. At its most precise, a watermark could encode a unique serial number that a music company could match to the original purchaser. So far, though, labels say they won't do that: Warner and EMI have not embraced watermarking at all, while Sony's and Universal's DRM-free lineups contain "anonymous" watermarks that won't trace to an individual." Here is a Technical discussion on AudioBox and PSU.edu's Abstract Index -
Boeing 787 May Be Vulnerable to Hacker Attack
palegray.net writes "An article posted yesterday on Wired.com notes that 'Boeing's new 787 Dreamliner passenger jet may have a serious security vulnerability in its onboard computer networks that could allow passengers to access the plane's control systems, according to the U.S. Federal Aviation Administration.' They're already working on solutions to the problem - including placing more physical separation between aircraft networks and implementing more robust software-based firewalls." -
How and Why Knots Spontaneously Form
palegray.net writes "Scientists believe they have found the underlying reasons why knots are so common in the universe. This research helps us understand how knotty arrangements in various molecules lead to biological patterns, as in certain proteins. The article also provides a look at the field of topology, and how it relates to knots." -
Former Anti-Nuclear Activist Does A 180
palegray.net writes "Wired is running a story on how Gwyneth Cravens, a former nuclear power protester has changed her views on nuclear power as a viable solution to the world's energy needs. Said Cravens: 'I used to think we surely could do better. We could have more wind farms and solar. But I then learned about base-load energy, and that there are three forms of it: fossil fuels, hydro and nuclear. In the United States, we're maxed out on hydro. That leaves fossil fuels and nuclear power, and most of the fossil fuel burned is coal.'" -
Duke Scientists Map 'Silenced Genes'
palegray.net writes "Wired reports on new research into the phenomenon of 'silenced genes', genetic constructs that have no 'partner' in case one goes wrong over the course of your lifetime. Scientists at Duke University have mapped some 200 genes that may 'play a profound role' in the health of the average human. 'Many of the newly found imprinted genes are in regions of chromosomes already linked to the development of obesity, diabetes, cancer and some other major diseases, the researchers reported ... Scientists had thought imprinted genes would account for about 1 percent of the human genome. While scientists must double-check that the newly identified ones are truly silenced, the new map matches that tally.'"