Slashdot Mirror


User: lightyear4

lightyear4's activity in the archive.

Stories
0
Comments
189
First seen
Last seen
Profile
(view on slashdot.org)

Comments · 189

  1. John Updike : Toward the End of Time on Ask Slashdot: What's the Most Depressing Sci-fi You've Ever Read? · · Score: 1

    Though Updike is rarely considered in this genre, his "Toward the End of Time" is very much sci-fi and without question rather dark. It's a story of mortality and decline, set in a post-apocalyptic environment in the near future, following a nuclear war. The US has fallen into anarchy; men are no longer able to reach orbit. No grey goo, but nanotech run amok.

  2. RFC1149 Needs an update on Syrians Using Donkeys Instead of DSL After Gov't Shuts Down Internet · · Score: 2

    Now RFC1149 for 'IP over avian carriers' needs an addendum. IETF go!

  3. Re:Xen did it first on First Look At VMware's vSphere "Cloud OS" · · Score: 1

    Yep, vmotion's explicit arp wins in that regard, whereas as I suggest Xen requires tweaks in order to function optimally.

  4. Re:Xen did it first on First Look At VMware's vSphere "Cloud OS" · · Score: 1

    Such is the state of affairs with open source. I've been using Kemari in production for almost six months now. Some research prototypes are quite production-environment friendly.

  5. Re:Xen did it first on First Look At VMware's vSphere "Cloud OS" · · Score: 1

    Sounds like a delay on the switch. Add a gratuitous arp using arping in whatever vif-* script you're employing for virtual machine network interfaces and that problem will disappear.

  6. Re:Xen did it first on First Look At VMware's vSphere "Cloud OS" · · Score: 1

    Xen live migration does not involve 'continuous memory snapshotting' -- the referenced Kemari utilizes a combination of i/o triggers and observation of shadow page tables (nested page tables, ideally, if the hardware supports it. AMD's RVI and Intel's EPT). Kemari's equivalent of a lockstep vm gets only hot updates on dirtied pages, not a full memory snapshot. The alternative would of course be a rather inefficient design.

  7. Re:Instantly? on First Look At VMware's vSphere "Cloud OS" · · Score: 5, Informative

    Instantly? Of course not. But the time required is equivalent to vmotion/live migration in bog-standard virtualization. How long? "That depends." To throw numbers at you, 30-100ms -- variance largely dependent upon how quickly your network infrastructure can react to MACs changing locations, whether in-flight TCP streams are broken as a result, etc. To help switches cope, people usually send a gratuitous ARP to jumpstart the process.

  8. Xen did it first on First Look At VMware's vSphere "Cloud OS" · · Score: 2, Informative

    Check out the Kemari and Remus projects, which allow precisely the same in Xen environments. In essence, it's a continual live migration (vmware people, think continual vmotion) that resumes virtual machine execution on the backup node if the origin node dies. Very cool tech. The demonstration involved pulling the plug on one of the nodes. For more information just search, there are code and papers and presentation slides galore.

  9. Silent films given voice on Researchers Work To Perfect Computerized Lip Reading · · Score: 3, Interesting

    Bringing audio and/or transcript to silent films is also where such technology is applicable. An excellent documentary about computerized lip reading to accomplish the very same may be found via google video : http://video.google.com/videoplay?docid=189608705425991617&hl=en . I know it's quite early for an indirect invocation of Godwin's Law, but the documentary content is nevertheless quite related to this topic. It is entitled "Hitler Speaks" in reference to silent videos filmed in Hitler's presence.

  10. getting around google virus scans on Storm Worm Rising · · Score: 1

    tac yourarchive.zip > reversed.zip

    attach reversed.zip, download remotely and then

    tac reversed.zip > yourarchive.zip

    works perfectly :) ***

    ***"man tac" if youre unaware of it

  11. Is this EPR? on Harvard Physicists Make Light Dance · · Score: 1

    Sounds a whole lot like particle entanglement. Any comments with respect to that?

  12. Re:Dungeon radio on What Bizarre IT Setups Have You Seen? · · Score: 4, Interesting

    Speaking of radio:

    A few months back during the summer, I was enjoying the lovely AC of a rather large server room at my university. On top of a rack in the midst of the farm sat a much abused radio, likely discarded even by the janitors, splattered with paint, and employing a rather frightening extension to its antenna. Its tuner was taped into position, and its headphone jack was connected to one of the machines.

    This, of course, supplies the world with a live stream of the campus radio station.

  13. An addendum on Five Hackers Who Left a Mark on 2006 · · Score: 4, Insightful

    I think Dan Kaminsky deserves at least an honorable mention in this list. Russinovich broke the story -- Kaminsky drove it home. He's the guy who did some amazing research regarding Sony's rootkit and its spread. (Using dns cache to ferret out statistical data was ingenious.) Now, the rootkit debacle did indeed occur in 2005; however, he published his studies on the brink of the new year. This enabled (very successful) class action lawsuits to go forward against Sony in 2006 and undeniably helped educate the general public about drm nastiness.

    At the very least, Kaminsky is on my list.

  14. Re:sucks to be them... on CSIRO Wireless Patent Reaffirmed In US Court · · Score: 5, Insightful

    why would those utilizing the technology be sued? surely the manufacturers of such equipment are those most directly affected?

  15. Re:Should be open and shut case. on Copyright Protection Problems For OSS Project · · Score: 4, Insightful

    I remember this story when it first came into public light. Given the volume of documentation available via JMRI, additionally via groklaw, and elsewhere, I'll avoid going into specifics, but it was and remains quite clear that JMRI's copyright was being flagrantly infringed by an aggressive and offensive party.

    Please read the brief summary of legal proceedings available here on their site.


    There is no way I can see JMRI losing, if the American court system has any integrity left at all.

    As you'll see, they're not exactly doing too well. This is unfortunate and greatly diminishes my confidence in the American legal system.

  16. Re:run proprietary code on it? on Dvorak On Microsoft/Novell Deal · · Score: 2, Funny
    Perhaps more is meant by "run on it"???

    Ah that was a mere prepositional mix-up by marketing. I do believe that 'run over it' was the intended meaning.

  17. Re:Troubling Question on Research Supports "Snowball Earth" Hypothesis · · Score: 1

    The brain's powers of word substitution and sentence completion are just lovely. My bad.

    I personally prefer bash or ksh completion..they help to avoid such silly mistakes.

  18. Re:NetReg on Selective DNS Caching/Forwarding · · Score: 1

    We use netreg at my university (and I work for the IT netsec dept); if you're looking for specific functionality, we might be able to help. Drop me an email.

  19. Lack of time? on Techies Must Educate Governments · · Score: 1

    Perhaps we do not have the time; however, I have a feeling that it is a matter of effort -- effort well worth investing. In that spirit, I am attempting to help increase public knowledge of technology and their rights. If you wish to contribute, please contact me.

  20. Techrights.org-Educating Politicians & the mas on Techies Must Educate Governments · · Score: 1

    You precisely echo my view. In an effort to turn sentiment into action, I am attempting to help increase public knowledge of technology and their rights. If you wish to contribute, please contact me.

  21. Re:It just me, or does this read like spam? on IBM's Counterclaim 10 Outlines 5 Ways SCO's Wrong · · Score: 1

    The first portion of the summary is "My article at IPW reads:" which (if not spam) is certainly /. whoring.

  22. Re:Easy solution for future exploits on Cache Servers Keeping Exploit Code Alive · · Score: 1

    Hmm! Who would've guessed microsoft's bot wouldn't adhere to the robot standard?

  23. By design? on What Went Wrong for AMD's AM2? · · Score: 1

    Seems to me that the article was written this way by design. It is (in somewhat silly fashion) regarded as the "upside down pyramid" style of composition. Via :

    Write in an "inverted pyramid" style. That means that the most important fact goes in the first sentence, then the second most important fact, and so on followed by facts of progressively diminishing importance. This allows the reader to get the most from any story without necessarily reading the entire story. When the facts reach a level that isn't important for that particular reader, that reader will click the "next" button.

    By this measure, it seems the style worked.

  24. Of course, there's always.. on Analog Revival Means Vinyl Will Outlive CD · · Score: 1

    ..the garage/tag/block sale, flea market, ...... Turntables of decent quality are discarded all of the time, and it's such a waste. That's $200 (albeit spent twenty five years) ago down the drain.

  25. On the other hand... on Yahoo Warns of Slowing Internet Advertising Sales · · Score: 1

    ..this could also be Yahoo! trying to redirect some of its own loss upon Google. Given that they're making such a generalization based only upon short term quarterly data, yet extrapolating into the future..this may just be corporate posturing.

    -- Consider:
      Yahoo's projection of advertising growth was a bit over enthusiastic --> Yahoo investors show their disappointment with the purse --> Yahoo attempts to save face by characterizing their own messup as an (exaggerated) general market trend --> Google's investors feel lukewarm --> Google gets hurt too?