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#11
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John Doe wrote:
nmp wrote: Hello, a bit of triviality if you don't mind, I know that ISS crew have internet facilities on board, they can exchange e-mail with their families and such. What I would like to know is how (un)restricted their access to the internet and the Wild Wild Web actually is. Like, would they be able to read this newsgroup? snip NASA would be crazy to allow outlook to be used on the station if it could receive emails from the internet. (think viri). Why? I don't see a risk in a VPN from the ground, to personal laptops, without IRDA/wifi (so there is no chance of them talking to other laptops on station). As long as it's bandwidth limited, so a virus can't jam the link, where is the risk? This would be solely a "personal stuff" laptop. |
#12
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Back in 2002, I had a hit on my web tracker from "tdrs.nasa.gov" - - is
there really an internet connection via TDRS, or is that some NASA IT guy being funny with router names? |
#13
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#14
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having a laptop dedicated to internet access on station.
Laptops have been known to fail. They move software to another laptop, and/or move the hard drive to another laptop. Because of the danger that the internet laptop would be infected, in the event that they woudl need to use it for real software, they would have to zap the drigve clean and re-install from scratch. Furthermore, because that laptop would be isolated from the nasa stuff, its management could not be done from the ground, so the crew would have to spend much time dealing with virus infections so common on the windows nasa insists on using. |
#15
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nmp wrote:
Op Wed, 24 Aug 2005 18:53:37 +0000, schreef Ian Stirling: John Doe wrote: nmp wrote: Hello, a bit of triviality if you don't mind, I know that ISS crew have internet facilities on board, they can exchange e-mail with their families and such. What I would like to know is how (un)restricted their access to the internet and the Wild Wild Web actually is. Like, would they be able to read this newsgroup? snip NASA would be crazy to allow outlook to be used on the station if it could receive emails from the internet. (think viri). Why? I don't see a risk in a VPN from the ground, to personal laptops, without IRDA/wifi (so there is no chance of them talking to other laptops on station). As long as it's bandwidth limited, so a virus can't jam the link, where is the risk? This would be solely a "personal stuff" laptop. Right, this is very much what I would like them to have. I really think it would enhance "quality of life" up there. BTW you could still make Wifi safe enough, with logically separated networks for "personal stuff" laptops and "serious stuff" laptops. And of course, Wifi would be a great pleasure to have on board a space station. Most wifi cards are logically capable of snooping on other traffic, as well as pretending to be other nodes. I wouldn't want the 'play' network to be logically accessible - maybe 802.11a and 802.11b (5/2.4Ghz) and cards that can't operate on each others frequency. |
#16
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John Doe wrote:
having a laptop dedicated to internet access on station. Laptops have been known to fail. They move software to another laptop, and/or move the hard drive to another laptop. Because of the danger that the internet laptop would be infected, in the event that they woudl need to use it for real software, they would have to zap the drigve clean and re-install from scratch. Furthermore, because that laptop would be isolated from the nasa stuff, its management could not be done from the ground, so the crew would have to spend much time dealing with virus infections so common on the Of course it could - it just couldn't be managed over the same net as the others, it'd need to go over the private link. If I was going, I'd be quite happy taking up my 1.1Kg linux laptop - even making the harddrive RO. |
#17
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On Sun, 21 Aug 2005 02:59:03 +0000, Jim Oberg wrote:
Even with existing systems, at least once a computer virus DID establish itself via the ISS email system. So why are they using MS(NBC) software? |
#18
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In article ,
Ami Silberman wrote: The real problems with using internet protocols out of the box is that they are not set up for SATCOM, much less deep space communications. TCP, for example, starts out with small packets and short time outs to wait for acknowledgements. Actually, TCP itself was designed from the start to be usable over satellite links -- the Arpanet (ultimate ancestor of today's Internet) included satellite links pretty much from the start. But existing TCP *implementations* are rarely configured for that. Deep space is another story entirely. Time delays of many minutes call for very different approaches. -- spsystems.net is temporarily off the air; | Henry Spencer mail to henry at zoo.utoronto.ca instead. | |
#19
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tcp ip over geostationary satellite works fine.I use it everyday.Here in
Europe are many (relatively cheap)providers.So the implementation to the ISS would be no problem if not done yet |
#20
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"m" wrote:
tcp ip over geostationary satellite works fine.I use it everyday.Here in Europe are many (relatively cheap)providers.So the implementation to the ISS would be no problem if not done yet I invite you consider the difference between a geostationary bird and a LEO bird. D. -- Touch-twice life. Eat. Drink. Laugh. -Resolved: To be more temperate in my postings. Oct 5th, 2004 JDL |
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