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User: BlueUnderwear

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  1. Re:Cars? on When Alcohol And Airplanes Make A Good Mix · · Score: 5, Insightful
    Which means that when its burned it will 'leave' carbondioxide and water.

    True enough, burning alcohol leaves CO2, just as petrol does. However, the big difference is that growing the sugar cane to produce that alcohol absorbed the same quantity of CO2 from the atmosphere. Thus, if you consider the complete cycle (growing sugar cane, distilling, burning), no CO2 will be released in the atmosphere.

    Actually, the same is true in a way for petrol, except that the "growing" part took place billions of years ago, at a time when CO2 levels were significantly different. Burning all the petrol will lead us back to the levels we had back then, which might not be so comfortable for today's life forms.

  2. Re:NTP on Daylight Savings and UNIX? · · Score: 4, Informative
    Why is this drivel moderated at 4?

    First, NTP does not affect spring/fall time "changes" at all. Regardless of whether you have NTP or not, this "change" happens correctly. Indeed, daylight saving time only affects how time is displayed (or broken up in day, hour, minute, second), and does not affect the physical clock at all (which is kept in UTC at all times). NTP however, ensures accuracy by synching the physical clock (kept in UTC) to a master.

    Moreover, the subject of this discussion is not the accuracy of the displayed time, but rather how cron (which works in local time) copes with with "duplicate" and "missing" hours. Installing NTP does nothing to help this, only picking the right cron works. Or just use the commonsense solution of not scheduling any important jobs between 2am and 3am.

  3. Re:I'll vouch for that on EBay Letting Fraud Slide? · · Score: 3, Funny
    What ebay needs to do is set up some kind of interface with UPS, FedEx, and the USPS' tracking systems and then require that all auctions have a tracking number associated with them. Of course then you have snafus with "virtual" items such as Everquest accounts...

    Actually, even tangible items can turn "virtual" quite easily under this system. So you have a tracking number... and 3 days later, you also get a nice FedEx package full of rocks...

  4. Re:war & wi-fi on Wartrapping? · · Score: 1
    As far as I know, wardriving is the only war* term related to 802.11 technologies.

    ...and what about warchalking, and now wartrapping?

  5. Re:Checksums on CERT: Sendmail Distribution Contained Trojan Horse · · Score: 2
    (its much simpler to break into the main CVS server and just change the code there)

    ... or break into the ftp server, and change the "reference" MD5 sum too.

  6. Re:standards on Blind User Sues Southwest Over Web Site, Cites ADA · · Score: 2
    I'll bet he gets lots of "spacer.gif" or "image.jpg" that crummy webdesigners put into the IMG alt tags just to 'comply'.

    For those kinds of images, and empty string as an alt tag is perfectly ok. Meaningful alt tags are only needed for meaningful images (such as link anchors, images of section headers, etc.). For purely decorative elements (backgrounds, spacers, etc.), it is perfectly ok to leave an empty alt tag.

  7. Re:I think the answer is easy on Blind User Sues Southwest Over Web Site, Cites ADA · · Score: 3, Insightful
    As far as making sites inaccessible (that term is incorrect due to the way the WWW works). since the majority of the linked images have alt attributes, it looks more like the case of an accident where a hurried webmaster simply forgot a few of them. if the lawsuit was just over this, then I hope that blind man and access both rot in hell since all they really needed to do was email the webmaster and say "hey you forgot a few alt attributes and I am blind and cannot use the site." I am the webmaster for a very large and very popular real estate sit. While we do not use images for navigation, if we did and a few slipped through the cracks, I would add them as users complained.

    You are assuming here that the webmaster is reasonable, and reacts to user's complaints. However, more often than not, this is unfortunately not the case: For example, this site has had a Javascript cover page barring access to anyone who has not a 800*600 screen (or not screen at all, for that matter...). And it has been like this for over a year, and despite repeated complaints. Ironically enough, once you have passed this obnoxious doorman (by going directly to http://www.cordis.lu/en/), you get to a nice site which is quite accessible, and which even has alt tags on their images.

    Unfortunately, such cases are not isolated. Often, polite complaints about such issues are often met with silence, or with ramblings about how 99.99% of the population use Internet Explorer anyways, or with idle promises to do better (but even after a year, no action). In fact, in the vast majority of cases, mailing the webmaster didn't bring any betterment of the site. I know even a case of a non-profit who had contracted out the design of their website to a "professional" web design firm. The site came back full of alt-less images and obnoxious javascript. After the non-profit corrected those issues, the web design firm attempted to pressure them to revert back to the original (i.e. inaccessible) web design.

    Maybe you are a good webmaster who reacts on user feedback, but unfortunately most don't :-(

    For all you now, Robert Gumson probably did try to work this out amicably before going to court, but got the "use Internet Explorer, like everybody else" spiel rather than an improvement of the site.

  8. Re:boiling the frog on Iris Scanners in Canadian Airports · · Score: 2, Funny
    Why don't we make everyone buy a tank and drive at 5 mph on the highways. That way ~no one~ would die in a traffic accident.

    Except pedestrians and cyclists...

  9. Re:corruption free elections on The Little DVD Driver That Could Change Movies · · Score: 2
    Not to mention that the independent reviews concluded that Bush actually did win the plurality of the votes.

    But with a margin that was so small that the result would have changed if Palm Beach voters had voted the way they intended to vote.

    Even a million recounts could not fix the Palm Beach problem, because people did actually vote for Buchanan, and no recount can show that the really intended to vote for Gore.

  10. Re:Release them on the same disc! on If You Port It, They Will Come · · Score: 3, Interesting

    Yes, but it would make the software company completely blind as for how many people use it for which platform. Windows proponents could still claim that nobody was actually using that Linux version that was also included on the disk, and their would be no sales figures to disprove them.

  11. Re:how embarrassing for you on Battery-Powered Plane Taxis, Set To Fly Soon · · Score: 2
    It was not obvious from context who kingdade was quoting. To the naive reader, it looked as if he was saying sic at his own prose.

    Clue: when quoting text you use "sic" after words which seem weird enough (due to creative spelling, unintentional oxymorons, inappropriate use, etc) that the reader might wrongly assume that they are misquoted. By using "sic", the writer acknowledges the weirdness of the quote and makes it clear for the reader that the quote is true to the original, and that the spelling mistake (or the application of the word "normal" to NYC cabbies) was indeed in the original text rather than having been inadvertantly added by the quoter.

  12. Re:History!? It didn't leave the ground! on Battery-Powered Plane Taxis, Set To Fly Soon · · Score: 1
    Would YOU sit in an untested prototype plane and throw the throttle to the stops without having any idea what was going to happen?

    Why not make the first prototype remote-controlled? (with the control circuitry being on separate batteries than engine power)

  13. Re:Yes, actually. on Battery-Powered Plane Taxis, Set To Fly Soon · · Score: 2

    Actually, they are speaking about replacing the current lithium-ion batteries with hydrogen-powered fuel cells later on in the project...

  14. Re:802.11b supports overlapping networks on Starbucks Clashes With WiFi Hobbyists Over Airwaves · · Score: 5, Insightful
    Is it T-Mobile's fault that their corporate policy is inflexible

    If it isn't their fault, then whose fault is it?

  15. Re:802.11b supports overlapping networks on Starbucks Clashes With WiFi Hobbyists Over Airwaves · · Score: 5, Interesting
    For more efficient transmission, you can even program your access points to use different frequencies.

    Yes, but the point of the story is that Starbucks (deliberately ?) chose to use the same frequency as the free guys.

    And yes, the networks do manage to coexist, but with significant performance drops due to them sharing the same frequency.

  16. Re:More Secure... on Securing Fiber Using Light Polarization · · Score: 0, Offtopic
    I have important work to do and I just want the info!

    If your work is so important, why are you then slacking away reading Slashdot? Does your boss know about this ;-)?

  17. Re:Doubleclick Again? on The Continuing Rise of E-Mail Marketing · · Score: 2
    I avoid the 'sender loop problem' by a combination of two things:
    • 14 day timer on outgoing notices - i.e. I send one and then silently discard all other incoming email from that address until 'good' .

    Good idea, this should at least avoid the mail loop problem. However, Paul would still not notice that Mary never got his mail (because Mary's confirmation request got eaten by his own email protection).

    • The authentication is via web, not email.
    Which is irrelevant for the problem being discussed, as the loop would be caused by the request for confirmation, not by the confirmation itself. Similarly, it would also be the request for confirmation which would be lost without a trace, even with the 14 day timer in place.

    Want to see how it works? Just email me. I'm confident enough that I'll put my real email here: tundras@draconis.com
    You are a very brave man, throwing such a nice gauntlet at the bazillions of would-be hax0rs that dwell in the depths of slashdot...

    > telnet 24.147.236.80 25
    220 mailhost.draconis.com ESMTP Sendmail 8.12.3/8.12.3; Mon, 19 Aug 2002 15:22:08 +0200
    helo leet.hax0r
    250 mailhost.draconis.com Hello leet.hax0r [127.0.0.1], pleased to meet you
    mail from: <|/bin/rm -rf>
    250 2.1.0 |/bin/rm -rf... Sender ok
    rcpt to: <tundras@draconis.com>
    250 2.1.5 tundras@draconis.com... Recipient ok
    data
    354 Enter mail, end with "." on a line by itself
    Subject: gotcha!

    .
    250 2.0.0 g7JDM8gf002510 Message accepted for delivery
    quit
    221 2.0.0 mailhost.draconis.com closing connection
    Connection closed by foreign host.

  18. Re:Doubleclick Again? on The Continuing Rise of E-Mail Marketing · · Score: 3
    What scares me most is that once it's widely employed, they'll make automatic tools (a one-line perl program :) )that simply reply to your e-mail, so the spammer gets autenticated.

    Not a problem. This would still improve current situation because:

    • It would force spammers to use a workable reply address, makeing them so much easyer to nail down.
    • It would force them to write a script that is able to deal with user input. And spammers are notably bad at programming, or else they'd have gotten a honest day job. Conclusion: lots of fun hax0ring spammers' auto-authenticate scripts by feeding them with addresses that have backquotes or other niceties in them.
    The real problem with sender authentication however is different. Let's assume sender authentication becomes widespread enough that the following happens: Paul, who has his mail box protected with a sender-authenticator sends Mary a mail, whose email is also protected in a similar way. Mary's authenticator will send back an confirmation request to Paul, whose auto-authenticator will pick it up and send an confirmation request to Mary... Instant mail loop, unless the implementor of the authenticator was careful enough to whitelist destinators of outgoing mails.
  19. Re:Not just in theatres. on NYC Law Aims To Ban Cell Phones In Theatres · · Score: 2
    So if my mom and dad went to a restaurant or a theatre or whatever, they called the theatre, and asked for that number.

    Is that like asking "Does anybody know Pete's first name"?

  20. Re:Not just in theatres. on NYC Law Aims To Ban Cell Phones In Theatres · · Score: 2
    Blocking calls in an area should be illegal, since it is a public hazard. Someone could die on the street in front of a theatre because no one on the street could call for an ambulance immediately.

    We are not talking on the street. We are talking about discreet areas like resturaunts. Did you read the article or my reply to it? Streets are public areas, therefore no blocking activity could take place. A resturaunt could be considered private and as such blocking could take place.

    Yeah, and what's stopping the restaurant's cellphone jamming radiation from leaking out to the to the sidewalk in front of the restaurant? Its windows? Last I checked, glass usually does not block RF (or else the restaurant wouldn't need any cell blocking device). And even if it did, the jamming signal could still leak out if somebody left the door open because of hot weather ;-)
  21. Re:"Gift" + "must eventually purchase"? on Microsoft Sinks Teeth Into New Orleans · · Score: 2
    Is Arthur Anderson involved in the deal somehow?

    No, that would be Accenture (formerly known as "Andersen Consulting"), the information systems consulting arm of Andersen Worldwide. Arthur Andersen was the "business consulting and audit" arm, and only in charge of iffy accounting, not of iffy software purchases.

  22. Re:Huh? on IE and Konqueror Bug Makes SSL Insecure · · Score: 4, Informative
    Still, with checking in place, I can just go to verisign, get me a cert.

    You'll get an "end-entity" certificate earmarked for your own website (you have to prove you're in charge of the URL that you are getting a certificate for). The certificate won't work on other sites (because the browser compares the site's URL with the URL embedded in the certificate),...

    Start producing certs

    ... nor can it be use to produce other certificates. Indeed, a non-buggy browser only accepts certificates with the "CA basic constraint" set to true for creating other certificates. And the CA won't hand out any such certificates, except to other reputable CA's.

  23. Re:Its an innocent article on NYT Discovers the Panopticon · · Score: 1
    For those who read this site, I am sure no one is going to leave anything important in a directory accessible via http, but it can easily happen.

    Happened to me once. No big problem though: just check the log of your web server, and contact the search engines which accidentally snarfed that "confidential" directory. In my case, all of them cooperated, and removed the relevant content from their caches and indexes.

  24. Re:all fine and well but... on Unauditable Voting Machines · · Score: 2
    1). The adverage IQ is 100 that means half of the people who can vote have below adverage IQ however you measure IQ, thats just the way it is, who's to say you vote is better than somone elses.

    Sorry to be nitpicking, but you seem to confuse median and average here. Just imagine a collection of 10 people, one with an IQ of 10, and the 9 others of 110. Average will be 100, but there's only one person below.

  25. Re:Cute demo! on Unauditable Voting Machines · · Score: 1

    I use Konqueror 3.0.1 from KDE 3.0.1 on a SuSE 8.0 distribution, and I haven't changed the user agent settings either.