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Comment In theory, theory and practice are the same (Score 1) 202

2 major problems with using iPad as a car pc (off the top of my head, mind you)

* glare -- HUGE problem when you're in daylight and you've got light coming in from every window. And if the sun hits the screen directly... have fun!
* no extensibility -- no CD/tape/radio. Forget sat radio. No higher quality GPS or any other upgrades. True, you don't get extreme flexibility with pre-built car pcs, but they're still upgradeable to an extent..

Comment Re:Faraday Cage, anyone? (Score 1) 870

Constructing one isn't very hard, just line the walls/windows/doors with metal screen door mesh, then ground it.

But that doesn't solve the problem of students networking between each other. If that's a necessity, a wifi jammer can be placed inside the faraday cage - this both prevents illegal jamming (nobody outisde is affected), and internally nobody can use wireless either.

Might cost a bundle, though :P

Comment Re:screen (Score 1) 307

If using asymmetric keys, then indeed the private key is not transmitted. But if using password authentication, it is transmitted in "plaintext" within the encrypted connection established by DH session. In other words, if the remote machine is compromised (or someone replaced it), it can get your password. Which is why it's important to heed the host key change warnings.

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