burdalane - Slashdot User

Why Power Failures Can Always Lead To Data Loss 456

Posted by timothy on Wednesday July 23, 2008 @01:03PM from the when-velcro-snags-shoelaces dept.

bigsmoke writes "So, all your servers run on RAID. You back up religiously. You're even sure that your backups are recoverable. But do you also need a UPS? According to Halfgaar (on Slashdot before to promote better Linux backup practices), yes, usually you do. He argues that despite technological advancements such as file system journaling, power failures can still cause data loss in most setups."

E-gold Owners Plead Guilty To Money Laundering 469

Posted by timothy on Tuesday July 22, 2008 @10:48AM from the laundering-is-just-a-bad-word-for-privacy dept.

Ian Lamont writes "The three owners of Internet currency service e-gold have pled guilty to money laundering in the U.S. District Court for D.C.. The service is based in the West Indies, but the directors apparently live in Florida. They haven't been sentenced yet, but potentially face decades in prison and millions in fines. In addition, the principal director posted a blog entry yesterday saying that 'criminal activity will not be tolerated,' and pledging to eliminate the loopholes that allowed money laundering to thrive on the service. He also claims that e-gold has more transaction volume in a single quarter than all of the first-generation Web currency services like Cybercash, Beenz, and Flooz completed over their lifetimes. Ironically, one of the reasons that contributed to Flooz's demise in 2001 was rampant money laundering."

Package Managers As Achilles Heel 263

Posted by timothy on Thursday July 10, 2008 @06:53PM from the dip-your-computer-in-the-styx dept.

An anonymous reader writes "Researchers from the University of Arizona have released a study that takes a look at the security of ten popular package managers. They were able to show all ten were vulnerable to attacks from a mirror or man-in-the-middle that allow an attacker to (along with other things) crash the system or obtain root access. Furthermore, the researchers created a fictitious administrator and company name and were able to lease a server and get it listed as an official mirror for all the distributions they tried (Ubuntu, Debian, Fedora, CentOS, and OpenSUSE). This raised the question: What keeps you up at night, the thought of attacks on your package manager or previously discussed and patched vulnerability in DNS?" justin samuel (one of the Arizona researchers) also points out a synopsis on CERT's blog.

Comment not a good idea (Score 1) 148

by burdalane on Monday June 02, 2008 @03:46PM (#23630427) Attached to: Getting Credit for Programming Accomplishments?

I sympathize with your situation, but asking for credit would not make you look good and would probably antagonize your supervisor. Instead, put your accomplishments on your resume. If you want to, build a personal website and post your resume there. Meanwhile, continue doing your job as well as you can. Eventually, you'll get more recognition, hopefully in the form of money as well as name recognition. Keep in mind that real recognition won't come from working for someone else.

Explosion At ThePlanet Datacenter Drops 9,000 Servers 431

Posted by kdawson on Sunday June 01, 2008 @02:07PM from the could-happen-to-anyone dept.

An anonymous reader writes "Customers hosting with ThePlanet, a major Texas hosting provider, are going through some tough times. Yesterday evening at 5:45 pm local time an electrical short caused a fire and explosion in the power room, knocking out walls and taking the entire facility offline. No one was hurt and no servers were damaged. Estimates suggest 9,000 servers are offline, affecting 7,500 customers, with ETAs for repair of at least 24 hours from onset. While they claim redundant power, because of the nature of the problem they had to go completely dark. This goes to show that no matter how much planning you do, Murphy's Law still applies." Here's a Coral CDN link to ThePlanet's forum where staff are posting updates on the outage. At this writing almost 2,400 people are trying to read it.

Moving Between Countries? 450

Posted by kdawson on Sunday June 01, 2008 @05:23AM from the lay-of-the-land dept.

An anonymous reader writes "In six months' time, I am packing up and moving from Australia (Melbourne) to Canada (Vancouver). I'm a qualified network engineer. What I want to know is, what sort of quirks and tricks I am going to have to get used to in the Canadian job market? I'm used to Australian recruiters, and all the hoops you have to jump through, but Canada may have different hoops. I've tried contacting recruiters directly for information but they don't really give out much, as I am not actually in the country yet and therefore not worth their time. Is anyone willing to share their experiences on making the big move from country to country?"

A Look At the Workings of Google's Data Centers 160

Posted by Soulskill on Saturday May 31, 2008 @08:07AM from the we're-gonna-need-a-bigger-boat dept.

Doofus brings us a CNet story about a discussion from Google's Jeff Dean spotlighting some of the inner workings of the search giant's massive data centers. Quoting: "'Our view is it's better to have twice as much hardware that's not as reliable than half as much that's more reliable,' Dean said. 'You have to provide reliability on a software level. If you're running 10,000 machines, something is going to die every day.' Bringing a new cluster online shows just how fallible hardware is, Dean said. In each cluster's first year, it's typical that 1,000 individual machine failures will occur; thousands of hard drive failures will occur; one power distribution unit will fail, bringing down 500 to 1,000 machines for about 6 hours; 20 racks will fail, each time causing 40 to 80 machines to vanish from the network; 5 racks will "go wonky," with half their network packets missing in action; and the cluster will have to be rewired once, affecting 5 percent of the machines at any given moment over a 2-day span, Dean said. And there's about a 50 percent chance that the cluster will overheat, taking down most of the servers in less than 5 minutes and taking 1 to 2 days to recover."

What Web 2.0 Means for Hardware and the Datacenter 125

Posted by ScuttleMonkey on Monday May 26, 2008 @03:34PM from the driving-the-bottom-line dept.

Tom's Hardware has a quick look at the changes being seen in the datacenter as more and more companies embrace a Web 2.0-style approach to hardware. So far, with Google leading the way, most companies have opted for a commodity server setup. HP and IBM however are betting that an even better setup exists and are striking out to find it. "IBM's Web 2.0 approach involves turning servers sideways and water cooling the rack so you can do away with air conditioning entirely. HP offers petabytes of storage at a fraction of the usual cost. Both say that when you have applications that expect hardware to fail, it's worth choosing systems that make it easier and cheaper to deal with those failures."

Samsung 256GB SSD is World's Fastest 190

Posted by CmdrTaco on Monday May 26, 2008 @09:00AM from the i-write-faster-with-a-pencil dept.

i4u submitted one of many holiday weekend slow news day stories which starts "Samsung Electronics announced today the world's fastest, 2.5", 256GB multi-level cell (MLC) based solid state drive (SSD) using a SATA II interface. Performance data of the new Samsung 256GB SSD features a sequential read speed of 200 megabytes per second (MB/s) and sequential write speed of 160MB/s. The Samsung MLC-based 2.5-inch 256GB SSD is about 2.4 times faster than a typical HDD. Furthermore, the new 256 GB SSD is only 9.5 millimeters (mm) thick, and measures 100.3x69.85 mm. Samsung is expected to begin mass producing the 2.5-inch, 256GB SSD by year end, with customer samples available in September. A 256GB capacity is getting large enough to replace hard-drives for good — now just the prices just need to come down further for large capacity SSDs."

Fasting May Fix Jet Lag 131

Posted by kdawson on Monday May 26, 2008 @08:08AM from the lost-in-translation dept.

stoolpigeon writes "Reuters reports on a Harvard Medical School study on sleep patterns and how they relate to food. Researchers already knew that the sleep patterns of mice would change to match the opportunity to feed, but they did not know the mechanism that enabled the change. To find out, they looked for the part of the brain that was involved. They bred mice without a certain master gene that regulates the body's clock, and then targeted various parts of the brain with the gene, delivered in the shell of a virus. The results may, among other things, provide a new method for preparing to deal with jet lag: 'A period of fasting with no food at all for about 16 hours is enough to engage this [alternate body] clock,' the lead researcher said. The study appears in the journal Science."

Google Opens Up (Some) Search Algorithms 86

Posted by CmdrTaco on Saturday May 24, 2008 @08:51AM from the nobody-else-has-a-million-servers-anyway dept.

overmars writes "After years of closely guarding the formula for its search algorithms, Google is opening up a little. The search engine company has kept its search formula a closely guarded secret for two reasons: competition and to prevent abuse, said Udi Manber, Google's vice president of engineering, search quality, in a post on the corporate blog. Manber said the blog post is the first part of a renewed effort at the company 'to open up a bit more than we have in the past.' Manber said the most famous part of Google's ranking algorithm is PageRank, an algorithm developed by Google cofounders Larry Page and Sergey Brin. While PageRank is still in use, it is a 'part of a much larger system,' he said. 'Other parts include language models (the ability to handle phrases, synonyms, diacritics, spelling mistakes, and so on), query models (it's not just the language, it's how people use it today), time models (some queries are best answered with a 30-minutes old page, and some are better answered with a page that stood the test of time), and personalized models (not all people want the same thing),' he said."

Best Way to Start a Website Hosting Service? 164

Posted by ScuttleMonkey on Saturday May 24, 2008 @03:31AM from the don't-reinvent-the-wheel dept.

Kwirl writes "Lets say that I wanted to start a small business endeavor, namely reselling my server space and offering pre-built websites. What resources would I need to start something like this on my own? What hosting service would best suit those needs? What would be the best way to manage a subdomain-level service that provided a basic forum, registration, a web site and some controlled administrative access for my friends so they couldn't easily terrorize each other? I'm curious to know if I could start something like this on my own, and without much more than just my own server space, time, and creativity. I'm not looking to make a living out of this, its mostly just a way for me to more efficiently manage having several friends each wanting me to built or run a web site for them, and perhaps make some small residual income if a market exists. The Slashdot community represents such a broad swath of experience and expertise that I'd like to know how you would approach a project of this nature."

Replacing a Personal Rack-Mounted Server? 108

Posted by timothy on Thursday May 15, 2008 @12:40PM from the microsourcing dept.

Starky writes "Many moons ago, I cobbled together a 1U rack mount from parts which has since been diligently serving up my homepage and web sites for family and friends. It's a truly "Mom and Pop Shop" setup, running on a rack secluded in a closet at home over a DSL line. At the time, I was able to piggyback my order on a large order placed by a company for which I was working, allowing me to get a substantial discount. Now, the time has come to consider a replacement. However, I no longer work at a company that orders chassis and chips by the dozen. I would like to get a rack-mountable chassis, but don't know where to go as a lowly individual consumer looking for a box with minimal specifications (1 processor, dual drives, and 1G RAM is about all I need) at a reasonable price. Any recommendation from Slashdotters who maintain their own rigs?"

Life-Size Photo of a Blue Whale 84

Posted by kdawson on Tuesday May 13, 2008 @04:33PM from the baleen-why-can't-you-be-true dept.

Smivs writes "The Whale and Dolphin Conservation Society have posted a navigable life-size photo of a blue whale! It will take a while to look at all of it, but it starts at the eye (which is a great idea). The picture is navigable — there is an insert of the whole picture and you can change the view by moving a cursor around — but if you just let it run, the whale will slowly 'swim' past you. It's a bit like being in a submarine with the whale going past a porthole. Definitely worth a look!"

An Inside Look at the Great Firewall of China 165

Posted by CmdrTaco on Monday May 12, 2008 @11:40AM from the must-protect-general's-secret-recipe dept.

alphadogg writes "An interview with James Fallows, national correspondent for The Atlantic Monthly, who has experienced 'The Great Firewall of China' firsthand, an experience people from around the world will share this summer when the Olympics comes to that country. Based in Beijing, Fallows has researched the underlying technology that the Chinese use for Internet censorship. One good thing to know: With VPNs and proxies, you can get around it pretty easily." Will these Olympics lead to a more free China, or is it just corporate pandering?

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