Slashdot Mirror


User: Lorens

Lorens's activity in the archive.

Stories
0
Comments
350
First seen
Last seen
Profile
(view on slashdot.org)

Comments · 350

  1. Re:When I see that [literally] textbook mistake... on Steam For Linux Bug Wipes Out All of a User's Files · · Score: 2

    The better system is called capabilities. Think "everything is a file descriptor". You want to create a file, you get a file descriptor. You want to run most programs, you give them read-write scratch space, a place to find common library routines (that don't carry any rights by themselves), and probably a read-write access to some graphical interface window. You're a browser, your user clicks on a java applet? You download the applet into a descriptor from your scratch space, you run it, giving it a read-write descriptor to some user interface sub-window created from your own window, read-write to a descriptor of some scratch space created from you scratch space, and read-execute of some descriptor containing a library, probably the same one you got from your parent. You have a video with a proprietary codec? You run the proprietary program as above with read-only to the video. You're a word processor? You get a RW descriptor to the file you're editing, and a call-back to your parent if your user requests an "open file" dialog, which returns a RW (or maybe RO) descriptor to the file the user indicated. See a pattern? See KeyKOS, which actually worked for years, and followers EROS, CapROS, Coyotos, which none got to to any useful status. There was a guy who rewrote libc on these principles, IIUC so that you'd only have to change file-handling logic in classical programs and recompile. But I get the impression that most people working on these things are security and OS researchers in academia (sincerely sorry if someone feels insulted, I'm not helping out and if you weren't working on it I wouldn't even know about these things), and not people saying OK, I have a generous budget, I have excellent developers and excellent team leads and stellar project managers, now I want a timeline and then a product.

    For other non-OS projects see Plash, Capsicum, Tahoe-LAFS, E-Lang, CapDesk...

  2. Re:Non-scientist at work on Vast Nazi Facility Uncovered In Austria; Purported A-Bomb Development Site · · Score: 2

    An awful lot of them probably died in the process... and 'dead men tell no tales'.

    TFA says 320000 imates from the local concentration camp, and the Russians did discover the plant... just not all of it.

  3. Re:Non-scientist at work on Vast Nazi Facility Uncovered In Austria; Purported A-Bomb Development Site · · Score: 2

    After actually RTFA (at the Mirror), part of the facility was discovered and cannibalized by the Russians, but they missed a bit (a bit: 75 acres is 300 000 sqm, 3.27 million sqft...)

  4. Re:How to get rich on 65,000 Complaints Later, Microsoft Files Suit Against Tech Support Scammers · · Score: 1

    I'll invent a tool that allows you to kill people via a phone line. I could see a really HUGE market for something like this.

    There might be a volume filter, but I wonder what would happen with an air horn. I suppose they have earphones, so if you start off speaking really quietly...

  5. Not new on Warmer Pacific Ocean Could Release Millions of Tons of Methane · · Score: 1

    sounds a lot like The Swarm by Frank Schatzing (excellent book...)

  6. Re:Light of Other Days on First Experimental Demonstration of a Trapped Rainbow Using Silicon · · Score: 1

    At least they will have done it on purpose and not while researching a windshield for an airplane . . . Splat.

  7. Re:Heavier than air flight is impossible on The Physics of Why Cold Fusion Isn't Real · · Score: 1

    16 megabytes of RAM...

    It was 640 kB, and Bill Gates denies having said it :)

  8. But the ID shouldn't have to be secret on South Korean ID System To Be Rebuilt From Scratch After Massive Leaks · · Score: 3, Insightful

    Granted it's not good if the IDs are easy to guess, nor if the list of IDs+names gets out, but as long as you're not using the ID to authenticate people, only to identify them, it shouldn't be a terrible problem. Think ID=username, not password. What they say about the credentials seems a bit more worrying, but we'd need a lot more info here . . .

  9. Re:Wiring on Ask Slashdot: Designing a Telecom Configuration Center? · · Score: 1

    If you have lots of money, buy PatchSee cables. If not, install your switches so you don't have to run your cables from the front to the back of the cabinet. As for the rest . . . I may be looking for a job, but not for free :)

  10. Re:Weber's Honorverse on The Physics of Space Battles · · Score: 1

    he has much too much of a fascination with the French Revolution

    I can't say you're wrong, but at least he does it on purpose. The series was supposed to recreate the life of Horatio Nelson (think "Hornblower in space"), and most of the physics "could be"s are chosen so that the battles and diplomacy resemble life at sea in the early 19th century. Of course, the heroine was supposed to die like Nelson did, but I think the story and fans won that battle. It probably explains why she's less present in the later books!

  11. Re:So offer a cost effective replacement on Security Collapse In the HTTPS Market · · Score: 1

    15 years ago I had an MBNA credit card. On their website you could generate a one-time credit card number that was only good for the stated amount. That was a big improvement. I guess not enough people bothered to use it though.

    I have this system today, and my "real" card number, while valid, is systematically declined for Internet transactions. It's common enough that Amazon (at least the French Amazon) has an FAQ on the problems it can cause (bigger orders can be split up, and Amazon debits each packet separately). Some sites refuse the virtual card, but I can real-time the on/off switch on my bank's website to use my "real" card number just for the necessary number of seconds. Not ideal, but better than most.

  12. Re:Too simple on Low-Carb Diet Trumps Low-Fat Diet In Major New Study · · Score: 1

    I am talking in this case about the sliced meat you eat on bread. In the local shop, only the super-expensive, high-garlic "Italian" meat is sugar-free. The rest contains both sugar AND at least one kind of syrup. The ingredient list is on the back side, so if you see, for example, roasted chicken meat, you would not think that it would contain anything else than roasted chicken.

    "Roasted chicken"? That's not food, that's industry-processed human-feed, exactly the problem debated here. Your super-expensive meat isn't meat either, since it's "high-garlic". If you want chicken, you buy chicken. Just chicken. You can buy whole chickens, or just breasts, or whatever, but not processed. If you want it roasted, you roast it, if you want salt, you add salt. Of course, that takes time, a kitchen, and some minimal cooking competence. Cooking should be a school subject, and no processed foods allowed.

    "Organic" is supposed to protect you against that chicken having eaten processed foods (made out of the carcasses of other chickens, for example) and having been exposed to excessive levels of antibiotics and hormones and pesticides. Now segue into a discussion of "excessive" vs. "non-zero" . . .

  13. Not all the blocks on How the Ancient Egyptians (Should Have) Built the Pyramids · · Score: 3, Interesting

    Saw a television documentary where they showed some blocks that seemed to have been poured like concrete, complete with marks of wooden crating. See http://www.visual--media.com/w... and http://en.wikipedia.org/wiki/E...

  14. Don't forget the Internet on French Provider Free Could Buy US Branch of T-Mobile · · Score: 4, Informative

    Before launching their mobile telephony offering and forcing the previous oligopoly to slash their prices, Free did the same with ADSL Internet (and ISTR with dialup before that). I pay something like USD 45/month for:

    - uncapped broadband with static IP and valid rDNS (living in an area well covered by DSL that is about 17 Mbps down, but if/when their fiber gets here I'll pay the same price for 1 Gbps!)

    - plus unlimited telephone to fixed and mobiles in France, to fixed in some 100 other countries and to mobile in some countries, relatively low rates otherwise

    - a SIM card with unlimited SMS, 50Gb 3G/4G data/month, 2 hours phone (the unlimited version would set me back some USD 22/month more) and extremely competitive rates for anything not included

    - Some 600 television channels (some of which you have to pay extra for, sure), with timeshifting, pay-per-view video on demand, and free replay (usually the last week of popular series, depending on the channel)

    - an ADSL box "Freebox", extremely well thought out (hello Rani) with a really excellent user interface (web browser, games, what have you), a 4-port gigabit switch, a Blu-Ray reader, a 250 GB disk that can be used as a NAS and for recording television programs

    - lots of techie goodies (IPv6 if I want it, messages left on my answering machine can be forwarded to an e-mail address, I can force certain MACs to an IP so that I have the same IP whether connected by WiFi or Ethernet, and, and, and, isn't there a length limit on comments here?)

    I'm looking at moving to the US (like SF or NY, https://www.linkedin.com/pub/l... ), so I read the Comcast horror stories with interest. In comparison, I have called Free tech support once in six years, after a storm killed my Freebox. It was replaced (without charge I believe), and nobody even hinted that I might like to buy anything more. If they manage to buy a US provider, no question, I'll be their client.

  15. Commodore on Meet Carla Shroder's New Favorite GUI-Textmode Hybrid Shell, Xiki · · Score: 2

    The "commands everywhere, hit enter to resample them" existed back then for macintosh programmers Workshop

    The Commodore interface was like that too.

  16. Re:what about? on Exploiting Wildcards On Linux/Unix · · Score: 1

    Oh, thought of another one, just to mess with other admins:

    # chattr +i /*.*

    Wouldn't notice until kernel upgrade time:

    $ ls -d /*.* /initrd.img /initrd.img.old /vmlinuz.old

  17. Visualization for evaluating randomness on Visualizing Algorithms · · Score: 2

    Visualization is also great for evaluating randomness; remember the images of broken RNG implementations a few years ago? http://lcamtuf.coredump.cx/new...

  18. Re:Yea, I'm sure he gives a rat's ass. on Iran Court Summons Mark Zuckerberg For Facebook Privacy Violations · · Score: 1

    Dress up as Mark Zuckerberg?

    Could be a good idea... but you'd have to find a lawyer with a terminal illness and arrange for payment to the soon-to-be bereaved.

  19. Re:Linux Was Free on OpenStack: the Open Source Cloud That Vendors Love and Users Are Ignoring · · Score: 1

    In the beginning, Linux was free. I remember using it in college and learning about it and getting excited. If these big corporate players want traction against AWS and the like, they should be giving out free hosting to college students so they can tinker with it too.

    And so they are. Look at Red Hat's Openshift.

  20. Re:Well, that's why you store data a fileserver... on Emory University SCCM Server Accidentally Reformats All Computers Campus-wide · · Score: 1

    Umm, offline backups?

    That's why you have off-line backups, indeed. Also filer snapshots. Otherwise, instead of a rather big problem you have a gigantic showstopper problem.

  21. Just for the birds on China Using Troop of Trained Monkeys To Guard Air Base · · Score: 1

    I thought the monkeys were actually helping the guards... like baboons in ancient Egypt were used as K9 patrols are today.

  22. Re:Don't worry, NSA will still buy American on Sony Tape Storage Breakthrough Could Bring Us 185 TB Cartridges · · Score: 1

    Exactly, the equipment is expensive and slow if you need to do any kind of random access, which is like 95% of all necessity for reading and writing to media.

    There's good money in that 5% of that very big and rich market

  23. Re:Roman concrete article ten months ago was bette on How Concrete Contributed To the Downfall of the Roman Empire · · Score: 1

    False. It's a nice myth of antiquity, of the good old days being better than today but it is totally false.

    Today's concrete is far better than what was produced in the past. Of course, I'm not talking about crappy badly done concrete but the good stuff that is used in most good engineering works. Sure, you can point to a government bid sidewalk falling apart but that is meaningless anecdotal evidence in this discussion. That's politics and greed, not materials science and chemistry.

    [Citation needed]

    Mine is

    The most common blend of modern concrete, known as Portland cement, a formulation in use for nearly 200 years, can’t come close to matching that track record, says Marie Jackson, a research engineer at the University of California at Berkeley who was part of the Roman concrete research team. “The maritime environment, in particular, is not good for Portland concrete. In seawater, it has a service life of less than 50 years. After that, it begins to erode,” Jackson says. The researchers now know why ancient Roman concrete is so superior.[...]the findings, which were published earlier this month in the Journal of the American Ceramic Society and American Mineralogist, are considered so important[...]

    link

  24. Roman concrete article ten months ago was better on How Concrete Contributed To the Downfall of the Roman Empire · · Score: 1

    The concrete used by the Romans was apparently much better that the ones we use today. Since the Roman formula has been rediscovered, does that mean that todays diverse republics will be replaced by the Empire, and if so which Empire? Russian? Hegemon? Sith?

  25. Critical backup unit on NASA To Send SpaceX Resupply Capsule To ISS Despite Technical Problems · · Score: 1

    I want more stories about critical backup units. I don't like plain non-critical backups, or redundant systems, or backups of critical systems, just critical backups.