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User: djtack

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Comments · 181

  1. Protocol-relative URLs on SSL Pulse Project Finds Just 10% of SSL Sites Actually Secure · · Score: 5, Informative
  2. Re:Rolling Stone alleges Goldman Sachs corrupts... on Goldman Sachs Trading Source Code In the Wild? · · Score: 1

    Your tax money may be their profit: Goldman Sachs takes $12B Bailout, Hands out $14B Bonuses [digg.com]

    Your Digg author has confused millions with billions. There's a slight difference.

  3. Privacy? on Bike Projector Makes Lane For Rider · · Score: 1

    Privacy? I don't think so. Bicycling on public streets (with some conditions) is legal in all 50 states.

    In my state, a cyclist must right as close to the curb as is practical, but may take the lane "on the roadway that is too narrow for a bicycle and vehicle to travel safely side by side." The law also allows for choosing a lane position that avoids other hazards.

    You're not paranoid -Âjust misinformed. Can you cite one state (you've claimed to live in the U.S.) that doesn't permit cyclists on roadways?

  4. Busted on Mythbusters on CFLs Causing Utility Woes · · Score: 4, Informative

    This was "busted" by MythBusters: http://kwc.org/mythbusters/2006/12/episode_69_22000_foot_fall_lig.html And another article from Lawrence Berkeley: http://enduse.lbl.gov/info/LBNL-45862.pdf (scroll down to myth #3).

  5. Re:Hibernation? on Quick Boot Linux Hopes To Win Over Windows Users · · Score: 1

    Thanks for the link, I do have safesleep disabled. I suspect the biggest reason for difference is my new laptop has more RAM (4GB), which I assume eats more power.

  6. Re:Hibernation? on Quick Boot Linux Hopes To Win Over Windows Users · · Score: 4, Insightful
    Two reasons, I think:
    • Many of my coworkers running Ubuntu (and I've occasionally seen this with XP also) can't reliably sleep and wake without crashing.
    • Badly designed hardware, with short battery life when sleeping. My older PowerBook G4 could sleep for 2 weeks on a single charge; my newer MacBook gets about 1 week on sleep. Again, I've seen a lot of wintel hardware who's battery won't survive an overnight nap.

    I'm not saying this is a problem for everyone; just that there's enough issues that I think a lot of people are afraid or unable to use sleep.

  7. Re:USB is hopeless on Universal Power Adapter Struggling For Support · · Score: 1

    Do you have a link that describes how to request the 1A?  I've built a few USB devices (nothing super complex, a few prototype instruments for a hospital lab, though I did write my own device descriptors and host software).

    The configuration descriptor has a 1-byte field for the maximum power requested, and this field is represented in 2mA increments.  The largest value you could physically fit in this 8 bit field would be 255 (so 510 mA).

    If you take a look at this example descriptor, you'll see what I mean:

        /* Configuration Descriptor */
        sizeof(USB_CFG_DSC),    // Size of this descriptor in bytes
        DSC_CFG,                // CONFIGURATION descriptor type
        sizeof(cfg01),          // Total length of data for this cfg
        2,                      // Number of interfaces in this cfg
        1,                      // Index value of this configuration
        0,                      // Configuration string index
        _DEFAULT,               // Attributes, see usbdefs_std_dsc.h
        50,                     // Max power consumption (2X mA)

  8. Re:USB is hopeless on Universal Power Adapter Struggling For Support · · Score: 0

    negotiation can take place where it can then ask for up to 1 amp.

    The USB Implementors forum disagrees... http://www.usb.org/developers/usbfaq/

  9. Re:ground-exchange? the price tag hurts... on Tapping the Earth For Home Heating and Cooling · · Score: 1

    So explain this, why am I to trust a company that clams 300% efficiency?

    Strictly speaking, the vendor is describing the coefficient of performance. It's quite common for heat pumps to operate at 300-400%.

  10. Re:Freeze the CPU on Solution Against Cold Boot Attack In the Making · · Score: 1

    No, not a floating point operation. The 6-transistor SRAM cell you describe is commonly called a flip-flop. According to this paper, SRAM retains data only for a fraction of a second at room temperature, but apparently can be extended to seconds or minutes by freezing.

  11. "I'm a $PLATFORM" ? on New Contest Will Seek the Best "I'm Linux" Video · · Score: 1
    TFA:

    While you may be inspired by the Apple or Microsoft commercials, it's not a requirement to parody or make reference to them.

  12. Re:SMOKE on Time To Discuss Drug Prohibition? · · Score: 5, Informative

    Why is it that it took a constitutional amendment to start prohibition of alcohol

    Because they didn't have Wickard vs Filburn in 1920. Nowdays the federal government can ban any material they wish under the guise of interstate commerce. Which hasn't been all bad, it also enabled the fed to pass things like environmental regulation and some labor laws. Still..

  13. AACS revocable per player on Apple's New MacBooks Have Built-In Copy Protection · · Score: 1

    What you described was a weakness of CSS -- it's too costly to revoke vendor keys, so it practice it rarely done (have they ever revoked a CSS vendor key?)

    Supposedly, AACS fixes this problem, and keys can be revoked on a per player basis. The details are a little fuzzy to me but you can read about on Wikipedia, naturally.

  14. Because MITM tools are easy to get on Firefox SSL-Certificate Debate Rages On · · Score: 1

    I think what you are missing here is the fact that man-in-the-middle tools are easy to obtain and use, for example: http://www.oxid.it/

    Because of this, unauthenticated certificates are utterly worthless as a security measure.

    It's like your asking "Why doesn't mozilla suport ROT13 as a stream cipher? I mean, surly ROT13 is safer than no encryption at all, right? Do they have some corrupt deal with the AES guys?"

    Now, I agree there is a place for self-signed certificates. However, the correct approach is to create your own certificate authority, and add it to your browser's trust store.

  15. Re:I wouldn't have backed down. on eBay'er Arrested For Attempting To Sell His Vote · · Score: 4, Informative
    One is 1/350 odd millionth

    Well, except most people don't vote, only about 120 million votes were cast in the 04 US election.

  16. Re:Keep getting billed on AOL Users Will Need to Pay $2 a Month For Phone Support · · Score: 2, Informative

    All those who want the "convenience" of one card for everything will soon learn the inconvenience of dealing with a debit card fraudulent charge

    This just isn't true. My debit card was stolen once, and one quick phone call reversed the fraudulent charges.

    Before you think that I just got luck with a friendly bank, realize that the Fair Credit Billing Act requires banks to refund disputed charges, even on debit cards. The bank then has 90 days to investigate.

    This is essentially the same rules as a credit card. While it is true that you always have the back-up option of not paying your credit card bill, in reality the CC company has the power to wreck your credit report, preventing you from owning a home or even getting a job.

  17. the legal argument for Psystar on Psystar Offers $399 "OpenMac" Computer · · Score: 4, Interesting
    Maybe Pstystar is trying to get sued, to establish a precedent?

    They could argue that the first sale doctrine allows them to modify and resell it.

    To get around the EULA, they could bypass the "I agree to sell my soul" box by disassembling the installer program, and disabling the EULA dialog. So they never "Agree" to the license.

    Of course installing the software necessarily involves making a copy, from the DVD media to the computer's memory and hard drive. While you might think a license would be needed to perform this copying, in fact Title 17, section 117 specifically exempts this copying:

    117 Limitations on exclusive rights: Computer programs53 (a) Making of Additional Copy or Adaptation by Owner of Copy.- Notwithstanding the provisions of section 106, it is not an infringement for the owner of a copy of a computer program to make or authorize the making of another copy or adaptation of that computer program provided: (1) that such a new copy or adaptation is created as an essential step in the utilization of the computer program in conjunction with a machine and that it is used in no other manner
    I don't think Psystar can win, but this is more a reflection of the power that the copyright cartels wield over the government. (BTW I like Apple and would not look forward to another clone war, but that's a different post).

  18. Re:More like scam troll on Eco-Marathon Team Hits 2,843 mpg · · Score: 1
    RTFA. Scroll down about 2 paragraphs. See the giant solar car.

    The Pulsar vehicle from Purdue University was the top solar finisher; it got credited with a fuel economy rating of 2,861.8 mpg.
  19. that's nothing, I can get 3.8 million mpg on Eco-Marathon Team Hits 2,843 mpg · · Score: 1

    I can get 3,800,000 mpg easy - I walk 1 mile to work, then I spill 1 drop of gasoline on the sidewalk. 1 mile / 50 microliters = 3.8E6 mpg. That's basically what they're doing here. (The gasoline contributes only a fraction of the total energy used).

  20. Re:This happens everywhere on Bill Allows Teachers to Contradict Evolution · · Score: 1

    I've seen quotes from a number of scientists that see no conflict between faith and science
    Such scientists are rare, which is probably why their comments get published in the first place (Francis Collins is one example). Religion has always tried to answer scientific questions, and when the inevitable conflict arises, it's always religion that is forced to retreat (such as the pope eventually having to admit that the geocentric model of the universe is wrong).

    In this case of evolution, religion is offering a system of biology that is known to be false. Religious zealotry should not be tolerated in public schools, and should not be permitted to hide behind a game of changing definitions. Creationism and intelligent design are science, just very bad science.
  21. Re:Never mind the physics on Physicist Calculates Trajectory of Tiger At SF Zoo · · Score: 3, Informative

    Wrong, police used .40 caliber handguns.

  22. Re:Licenses on Sun Buys MySQL · · Score: 4, Informative

    Using protocols to communicate to a program or service is NOT linking!

    I understand where you're coming from, which is why I moved to Postgres for all my new applications last year. However, as it stands now, I think MySQL is within their rights to use the GPL for the client. As far as I know, there is no way to communicate with a MySQL server without linking to their client library (i.e., libmysqlclient.a). At one time there was an attempt to maintain a fork of the old LGPL MySQL 3, but it never took off. Now, merely linking to the client library doesn't automatically create a derived worked (see Linus's explanation), however, in the absence of some other compatible library you could have linked with instead, it's pretty much impossible to say your linked program is independent of MySQL. And since independence is a requirement to have a non-derived work (i.e. the ability for a program to live a separate life, do something useful without the linked library), the program ends up being derived from the MySQL client, and has to abide by the GPL.
    There is still plenty of argument around this topic, but again, it can be avoided by using Postgres, which IMHO is a better database anyway.

  23. Re:University Contact Information on Student Expelled For Facebook Photo Description · · Score: 1

    wish I had mod points. Anyway, I sent my letter via fax (I've read faxes are more likely to be read by an actual person than emails). I've had good luck with this fax gateway in the past (free, ad-supported): https://faxzero.com/

  24. Re:Any way to... on NSI Registers Every Domain Checked · · Score: 1

    Wow, first let me say your version is the most beautiful here. Although the ruby version above is pretty cool too. I didn't know about the uuidgen command, thanks.

  25. Re:Any way to... on NSI Registers Every Domain Checked · · Score: 1

    Yeah, the method is kind of silly... I reused some code from some crypto stuff I was fooling around with, which is why I used /dev/random (which on my system is "truly" random) instead of Perl's rand(). I'm sure there are more elegant ways to map the bytes from /dev/random into a limited character set, but I was in a hurry. ;)