Spam

Response to Gordon Cormack's Study of Spam Detection 229

Posted by michael from the even-stephen dept.
Nuclear Elephant writes "In light of Gordon Cormack's Study of Spam Detection recently posted on Slashdot, I felt compelled to architect an appropriate response to Cormack's technical errors in testing which ultimately explain why one of the world's most accurate spam filters (CRM114) could possibly end up at the bottom of the list, underneath SpamAssassin. I spend some time explaining what is a correct test process and keep my grievances simplified about the shortcomings of Cormack's research."
Spam

Spamassassin Beats CRM-114 In Anti-Spam Shootout 330

Posted by timothy from the hawaii-alaska-and-utah dept.
Simon Lyall writes "A new study of antispam software shows that Spamassassin performed well in various configurations along with Spamprobe , Bogofilter and Spambayes also came out good while CRM-114 failed to live up to its previous claims . The study shows: 'The best-performing filters reduced the volume of incoming spam from about 150 messages per day to about 2 messages per day.'"
Google

Gmail in the News 693

Posted by michael from the you've-got-google dept.
roadies writes "Despite all the negativity and privacy concerns that surround Gmail, it has still gained cult-like status where net-d0rks feel self validated by having a gmail address and will do anything to get one. Services like the Gmail Machine, a randomized Gmail lotto that has people hitting refresh until they get carpel-tunnel in the index finger, reports over 7 million pageviews (though, definitely not uniques) in 3 days and 55 invites given away. They just added 222 more through donators who have given up invites in exchange for a text link on the high-traffic site. GmailSwap (covered recently on /.) has given away everything from cameras to good vibes. Good news for hardpressed geeks: The invites are becoming more and more available and mainstream. Ebay once had gmail invites going for a couple hundred dollars. Now, nobody is bidding on them anymore, so you can purchase one the old-fashioned eBay way for a dollar or two." Reader marklyon writes "Third party developers have stepped in with utilities that enhance and improve GMail. One utility, Mbox & Maildir to Gmail Loader allows users to upload their existing email to their GMail account. Another, POP Goes the GMail, offers the ability to access your GMail account with any POP mail reader, giving users the ability to permanently archive messages. GTray lives in your taskbar and alerts you to incoming messages. Other, more general programs, allow you to forward your Hotmail or Yahoo! Mail messages to your new GMail account. The question that remains, however, is whether Google will work with or against third party developers in GMail's future."
Security

Knock Safely With portknocking_v1.0 78

Posted by timothy from the who-is-it-this-time dept.
mrdeathgod writes "The Port Knocking project at SourceForge has just released portknocking_v1.0. Based on my undergrad thesis, this client/server package does not use pre-defined knock sequences, but rather utilizes Blowfish in order to encrypt the client data into a sequence of port numbers. This enables a client with the proper password to remotely manipulate firewall rules without fear of replay attacks. While currently designed for FreeBSD+ipfilter, expanded portability is in the works."
Wireless Networking

Linux Unwired 184

Posted by timothy from the engenius-is-nice dept.
Alex Moskalyuk writes "Remember the Best Buy commercial where a puppet asks a woman for a laptop computer, and upon hearing that it's a 'wireless' laptop, starts imagining his life free of strings and limitations? That guy doesn't know it yet, but soon the harsh reality will kick in, ironically kicking him off the wireless network periodically if he uses Microsoft Windows Wireless Zero Configuration or if he wants to run Linux on a laptop with WiFi card that doesn't support Linux. This book, however, is not just about getting your Linux laptop onto the wireless network. Granted, WiFi plays a big role in today's business and personal networks, and three chapters are dedicated to exactly that purpose, but behind that wireless adjective we have a variety of technologies." Read on for the rest of Alex's review of Linux Unwired, from O'Reilly.

Searching for the Best Scripting Language 673

Posted by michael from the less-filling!-tastes-great! dept.
prostoalex writes "Folks at the Scriptometer conducted a practical survey of which scripting language is the best. While question like that is bound to generate flamewars between the usual Perl vs PHP, Python vs Perl, VBScript vs everything crowds, the Scriptometer survey is practical: if I have to write a script, I have to write it fast, it has to be small (less typing), it should allow me to either debug itself via a debugger or just verbose output mode. sh, Perl and Ruby won the competition, and with the difference of 1-2 points they were essentially tied for first place. Smalltalk, tcc, C# and Java are the last ones, with Java being completely unusable in scripting environment (part of that could be the fact that neither Java nor C# are scripting languages). See the 'Hello world' examples and the smallest code examples. Interesting that ICFP contests lately pronounced OCaml as the winner for rapid development."
Graphics

Ming + PHP5 + AI = Pretty 204

Posted by timothy from the mind-the-drooling dept.
cyberscribe writes "Project K++ just released its first alpha version today. The project aims to explore computer-generated abstract art using PHP and Ming. The name of the project is an homage to Wassily Kandinsky, father of abstract art. Caution: the Flash movies can be intensive on your graphics card. Other caution: hitting reload to see the next cool computer-generated abstract 'painting' can be highly addictive."
Software

Shareaza 2.0 Released Under GPL 321

Posted by timothy from the runs-under-whatnow? dept.
RageEar writes "Today it was announced that the latest version of Shareaza, a popular P2P application for Windows, was released under the GPL. Currently the source code is hosted by the Shareaza servers, but the announcement makes mention of the code becoming a project on Sourceforge. The binaries are still available for Windows only, but I imagine it is only a matter of time before a Linux port emerges."
Patents

McAfee Granted Far-Reaching Spam-Control Patent 449

Posted by timothy from the what-the-system-isn't-meant-for dept.
Titusdot Groan writes "Infoworld is reporting that Network Associates, makers of McAfee, have been granted a broad anti-spam patent. The patent covers "compound filters, paragraph hashing, and Bayes rules" and was filed in December of 2002. The patent appears to affect Spam Assassin, Spam Bayes and many other anti-spam products and services. As an aside Paul Graham's "A Plan for Spam" was published August 2002."
Graphics

GPU Gems 116

Posted by timothy from the shiny dept.
Martin Ecker writes "Following other entrants in the successful series of graphics and game programming-related "Gems" books, Randima Fernando of NVIDIA has recently released GPU Gems - Programming Techniques, Tips, and Tricks for Real-Time Graphics through Addison- Wesley. As the title indicates, GPU Gems contains a collection of tips and tricks for real-time graphics programming with graphics processing units (GPUs) that are found on modern graphics adapters." Read on for the rest of Ecker's review, and for a few more notes on the book.
Programming

Python Development Environments? 87

Posted by Cliff from the coding-with-a-net dept.
baxissimo asks: "I've played around with Python a bit, and as a scripting language I quite like it. So I sat down the other day to see if I could use it to make a modest OpenGL/GUI application on Windows. The short story is I gave up. I couldn't get the Python IDE I had to run--but that didn't stop me. At first I just shrugged my shoulders and said to myself 'Ah, who needs it? I've got emacs,' and then proceeded to waste a few hours trying to cobble together an app that would run before it dawned on me that Python without a decent IDE is definitely not easier to use than C++ with an IDE. So is anyone out there actually using Python to make serious apps? What tools are you using?"
Spam

DSPAM v3.0 RC1 Spam Filter Released 182

Posted by simoniker from the egg-and-beans dept.
Nuclear Elephant writes "DSPAM v3.0 RC1 is now available for download, with a stable release scheduled for June 13. DSPAM has appeared on Slashdot and in Wired News in the past for its high levels of accurate spam filtering. v3.0 is the product of three solid months of work. Some of the highlights include a very sleek redesigned interface, PostgreSQL support, many mathematical enhancements, and support for many of Gary Robinson's algorithms (such as Chi-Square, Geometric Mean Test, and Robinson's technique for combining P-Values)."
Software

New Largest Prime Found: Over 7 Million Digits 305

Posted by timothy from the tim-adds-2-and-takes-credit-for-the-next-one dept.
Jeff Gilchrist writes "On May 15, 2004, Josh Findley discovered the 41st known Mersenne Prime, 2 to the 24,036,583th power minus 1. The number is nearly a million digits larger than our last find and is now the largest known prime number! Josh's calculation took just over two weeks on his 2.4 GHz Pentium 4 computer. The new prime was verified by Tony Reix in just 5 days using only half the power of a Bull NovaScale 5000 HPC running Linux on 16 Itanium II 1.3 GHz CPUs. A second verification was completed by Jeff Gilchrist of Elytra Enterprises Inc. in Ottawa, Canada using eleven days of time on a HP rx5670 quad Itanium II 1.5 GHz CPU server at SHARCNET. Both verifications used Guillermo Ballester Valor's Glucas program." Read on for more on the discovery, including how you can help find more primes.
Communications

Learning a New Language Using Open Source? 74

Posted by Cliff from the speaking-in-tongues dept.
cmstar asks: "It's been several years since my High School Spanish courses and I'm finding myself quite a bit rusty. Add to that a new found desire to learn Japanese, and I find myself on a quest to find a good cheap set of language learning/teaching software. There are plenty of commercial packages available, but I'm poor. A quick check of Google and Sourceforge didn't produce any immediate results. I know speaking with a native is usually the best way to go about this, but with little time or money, and something portable that I could use at home and work, in my spare time, would be handy to freshen up on my skills and learn something new. Any suggestions?"
Software

Challenges in Releasing Open Source Software? 24

Posted by Cliff from the determining-the-hurdles dept.
Chris Vaughan asks: "Me and my Co-Workers at the Advanced Computing Research Lab are just about ready to release our first Open Source package on SourceForge.net I ask the Slashdot community what hurdles they had to overcome and how much involvement do they still have in their project years later. Also what types of licensing did you pick and why did it suit your project best? Our project, MyPBS is a PHP/MySQL/Perl frontend accounting package for the Portable Batch System (PBS). Which is used to account for super computing usage. I appreciate any comments you may have."
Hardware

Companies Selling Microcontroller Kits? 56

Posted by Cliff from the for-building-your-own-digital-projects dept.
An anonymous reader asks: "I'm in college working on an electrical engineering degree, and I've had a few labs so far involving microcontroller setups. I'd now like to start doing some microcontroller projects of my own devising, so I'll need a programmer, the development software, and the MCUs themselves. The problem is that I don't have a wide experience with the different companies selling this sort of equipment. I know about the BASIC Stamps and the PIC offerings, but what other architectures are there? Both of the MCUs I've named have development tools, but they're for Windows. Are there any companies out there that supply their tools for BSD/Linux? What open source projects are there working on this (I've found gputiles). As always, free (as in beer) is good for us college students. :-)"
The Internet

Yahoo Submits DomainKeys Draft To IETF 350

Posted by timothy from the you-may-be-surprised-to-receive-this-draft dept.
NetWizard writes "According to a mailing list post at the IETF, Yahoo's website and a Wired News story, Yahoo has made the DomainKeys draft public and submitted to the IETF." Russ Nelson explains "Basically, your MTA uses RSA-SHA1 to sign the headers and body of your email and inserts that signature before sending the email. The recipient MTA looks up $selector._domainkey.$domain in the DNS, gets your public key, verifies it, and inserts a notice. There's also a SourceForge project for a DomainKeys library." An anonymous reader asks "It seems to me that it doesn't offer anything more than the Sender Policy Framework by pobox.com, other than doing relay-based signing of the messages to provide the sender verification. SPF has already grown to over 14,000 domains so far and only requires an addition to your DNS to support (from the sending side). Verifying messages on the receiving MTA is as simple as doing a DNS lookup, most MTAs can support SPF now, the code is available and well tested. What advantages to people see in Domainkeys over SPF that are actually useful, and what standard should people implement?"
Operating Systems

Successful PearPC/Mac OS X Install Documented 679

Posted by michael from the layers-upon-layers dept.
rocketjam writes "OS News has an article by a user who successfully installed Mac OS X using the 0.1 version of PearPC, the PPC emulator for x86 machines. He said it took 5 hours to run the first install CD but he did get it up and running on an AMD Athlon XP 1600+ with 512MB of RAM. The article has several screenshots of the Mac OS X install and new user set up running on his machine." See our previous story.

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