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Comment: How are they getting the MAC address? (Score 1) 323

by camh (#42663099) Attached to: Have a Wi-Fi-Enabled Phone? Stores Are Tracking You

How are they getting the MAC address of my WiFi interface? I thought that an unassociated WiFi station would listen for beacons of access points (scanning). When an upper layer sees an access point that policy says the device should connect to, it will try to associate with it. Until then, what packets is my device sending out?
If I were running my own access point, I would be transmitting beacons. It my device was configured to connect to any open acces point, then it would connect when it found one.
In the absence of these two device policies, what would be causing my device to transmit packets?

Comment: Re:How to get service with no cell phone? (Score 1) 89

by camh (#40851739) Attached to: Dropbox Confirms Email Addresses Were Pilfered

If you have an Android, iPhone or Blackberry device, you can also use the Google Authenticator app. Granted, if you have one of these devices you probably also have a mobile service, but at least with the app you are not reliant on the mobile network delivering your SMSs in a timely manner. Then again, you could probably run it in your homebrew portable raspberry pi running android connected with bluetooth to your pebble watch. No mobile service required, only a little hacking. :-)
See http://support.google.com/a/bin/answer.py?hl=en&answer=1037451

Comment: Re:Hold on a second. (Score 1) 158

by camh (#40668247) Attached to: Torvalds Bemoans Size of RC7 For Linux Kernel 3.5

I havent seen a 7th release candidate for any kernel since the change to 3.0

Then you're just not looking. Every release from 3.0 had an rc7 release. That's was the last for each, except 3.1 which made it up to -rc10. In fact, every release since 2.6.20 except 2.6.35 went up to at least -rc7. Have a look at the git tags if you don't believe me.

Comment: Communicate frequently with your team and manager (Score 1) 480

by camh (#39409275) Attached to: Ask Slashdot: What Are Your Tips For Working From Home?

When you sit down to start your work day, send an email to your team and manager saying what you plan to get done today.
At the end of the day, send another email saying what you did get done today.
This helps by keeping you focused. It is harder to slack off when you've already told people what you're doing. It's ok to miss your targets occassionally, but you become conscious of doing that too often.
It also keeps you connected with your colleagues and manager. It is a virtual hello/goodbye, and helps people see that you are getting work done.

Comment: Is it a searching problem? (Score 2) 239

by camh (#38242384) Attached to: Genome Researchers Have Too Much Data

A couple of researchers in Sydney think they've got a model for searching the genoma much more efficiently. They're trying to fund their research and development with crowdsourcing: http://rockethub.com/projects/4065-a-gps-for-the-genome : "The PASTE project [is] based on a new number system we call Permutahedral Indexing - P.I. for short, an N-dimensional map that efficiently locates and interrelates complex datasets in the space of all possible data. P.I. does this efficiently even when the data has hundreds of independent dimensions and comes in petabytes and exabytes."
They don't seem to need much money in the scheme of things - I might just throw in $25.

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