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Verizon Injects Unique IDs Into HTTP Traffic

flux Spoof it (193 comments)

They could remove your headers and add their own.

yesterday
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Dubai Police To Use Google Glass For Facial Recognition

flux Battery life (122 comments)

You can probably multiply the time by taking an image once a second, or a short clip every 30 seconds. Also the display needs to be active only on positive match, but I suppose that consumes very little electricity.

about three weeks ago
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Dubai Police To Use Google Glass For Facial Recognition

flux Re:Enforce (122 comments)

Once the police learns that there are false positives, I'm sure they will learn to put the proper weight for computer recognition.

about three weeks ago
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The State of ZFS On Linux

flux Re:Unfamiliar (370 comments)

It's performing a checksum of your entire system. That's going to be a CPU hog. BTRFS will be no different in this regard.

Well, my btrfs scrubs 1.3 gigabytes per second and chances are it's IO-bound on the RAID10 SSDs, so if ZFS scrubbing performance is comparable, I would say it's not a CPU hog.

You can add a new disk to a pool. You can add a new mirror or Z vdev to a pool.

You make it sound such a petty limitation. But if you do have 5-device raidz and a pool, you are not going to add a single device to the system without risking data durability, you need to add at least two so you can mirror them, and then you're wasting space compared to parity-raids.

about a month and a half ago
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Microsoft Paid NFL $400 Million To Use Surface, But Announcers Call Them iPads

flux Should have saved the money (405 comments)

I bet they could've bought the announcers to say they are Surfaces for less money.

about a month and a half ago
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Moto 360 Reviews Arrive

flux Re:Battery consumption due to CPU? (87 comments)

Meh, I was hoping some kind of dim OLED MIP display that would display always, like in N9 (though I did notice it was not mentioned in the specs) - it would have explained why most of the clock displays had dark background.

There are accelerometers that can queue many samples and then pass them to the CPU in one go (ie. 100 samples) and in addition they can have thresholds for interrupts. If your CPU is going to be woken once a second - assuming 100 Hz sampling rate, which is quite nice - then it doesn't really sound that bad, unless you have bad power saving functionality either in the CPU or in the operating system.

I suppose BLE doesn't need to take that much energy either if you grant a few seconds latency from notifications to actually displaying them.

There's always hoping they can improve the battery usage with firmware upgrades..

about 1 month ago
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Moto 360 Reviews Arrive

flux Battery consumption due to CPU? (87 comments)

Everyone keeps saying how this doesn't have the latest most powersaving CPU but how much CPU does this device even need? Once a second to update the hand? Or could even be a few times a minute for a smooth minute hand.

I would be surprised if the overwhelming majority of the amperage doesn't go to the display and the BLE radio (in that order), the CPU coming last.

about 1 month ago
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Moto 360 Reviews Arrive

flux Circular LCDs (87 comments)

The addressing of LCDs is inherently cartesian, but I don't see why it means the display itself must be as well. The space not on the display is not wasted, there are not physical pixels being hidden here. Instead, the device provides the user with more free physical space compared to one with square screen, not to mention nicer look.

about 1 month ago
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Ask Slashdot: Linux-Friendly Desktop x86 Motherboard Manufacturers?

flux Re:MSI Claims SteamOS compatibility with X99 (294 comments)

Though the AsRock board I bought is able to download the BIOS upgrade itself from within the BIOS, so that works regardless the OS. (Also it has a switch for choosing from two BIOS flash regions, so it should be pretty safe.)

about 2 months ago
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seL4 Verified Microkernel Now Open Source

flux Re:Proof (82 comments)

While there have been some Linux bugs due to the compiler, I can't really recall hardware problems that have caused security problems â" unless you already have physical access, and then all bets are off.

The compiler issue could be addressed by using a certified compiler, such as this: http://compcert.inria.fr/ . Sadly CompCert is not FOSS.

about 3 months ago
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Intel Offering 3-D Printed Robot Kits

flux Re:Software not hardware (26 comments)

Are you familiar with ROS, http://www.ros.org/ ? It's basically a set of libraries for various robotics tasks and sounds like what you're describing.

about 3 months ago
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Microsoft Runs Out of US Address Space For Azure, Taps Its Global IPv4 Stock

flux Re:Where is IPv7? (250 comments)

Well, v4 doesn't require remembering IPv4 addresses either, but still it comes handy in a pinch to remember the gateway, the dns server, the WLAN access point, etc addresses. For some reason people really like to point out the Google's DNS server's IP, not its name.

Though remembering local gw and dns mostly comes to remembering the network prefix whcih won't be that large, assuming one has not used dynamic allocation for services in a network.

about 4 months ago
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Tux3 File System Could Finally Make It Into the Mainline Linux Kernel

flux Re:YASF (c) forver by me (121 comments)

Not sure if trolling.. but I looked it up, and on the paper it seems interesting, but for use today it has limitations: 2 TB maximum device size, 8 TB maximum volume size. So that's a non-contender. Seems quite advanced for its day, though (introduced 1998).

about 5 months ago
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Emory University SCCM Server Accidentally Reformats All Computers Campus-wide

flux Re:An...accident..? (564 comments)

Maybe the malware was deeply employed in all the install images, and now it is guaranteed that all the systems have it, even after re-deploying ;).

about 5 months ago
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Should Microsoft Be Required To Extend Support For Windows XP?

flux Re:Where do you draw the line? (650 comments)

Actually Google already gave the Wave to the Apache foundation, so I guess they're set from that point of view.

That aside, I don't think a company should be forced to provide any level of support for a ten-year-old product. They could even be up-front about ("this product will not be supported for longer than five years") and people still wouldn't care. Well, until the day came.

about 7 months ago
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Bitcoin Exchange Flexcoin Wiped Out By Theft

flux Re:surprised!!!! (704 comments)

I think it would be more effective to time the attacks when the sums involved are significant. Now they mostly server as a cautious example that new exchanges will learn from.

And it's probably better they learn their lessons now rather than later.

about 8 months ago
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Ask Slashdot: Effective, Reasonably Priced Conferencing Speech-to-Text?

flux Re:There isn't any... (81 comments)

A microphone array and some DSP should have no trouble distinguishing between sound sources at distinct points in space, in addition to removing background noise.

about 10 months ago
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Amazon Uses Robots To Speed Up Human 'Pickers' In Fulfillment Centers

flux Re:Dice Strikes Again... (184 comments)

I wondered that as well, but the video makes it clear: this way the shelves can be queueing for the worker.

about 10 months ago
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Ask Slashdot: Why Are Tech Job Requirements So Specific?

flux Reducing number of candidates (465 comments)

If you can reduce the number of candidates you need to evaluate and interview, you are saving plain money. More effective to have them do the filtering in a distributed manner.

Of course, you might miss the perfect candidate that way as well. But, you cannot really put a price to that.

about a year ago
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Software Developer Says Mega Master Keys Are Retrievable

flux Re:Problem is dedupe (136 comments)

There is a way to do dedup without having the key.

For example: the client takes an SHA256 of the data, then encrypts the data it with the lowest 128 bits of the SHA1, uploads the encrypted data to the server saying "this data has id ". The lowest 128 bits are then encrypted with the client key and uploaded as well. This way another party with the possession of the same data gets the server to merge their data (but the key still keeps hidden from the server). Servers makes an SHA1 sum of the encrypted data so that clients can quickly check if the data they are deduping is properly stored to dwarf data integrity attacks.

Not sure if this was the way Mega does it but it was something pretty close to it.

about a year ago

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