Ever notice the "beat the rush and see it early" link at the top of slashdot when a new story is about to come out?
Sounds good, doesn't it? To be able to view the pages linked to in the article before the tens of thousands of other slashbots click to view them.
Did it ever occur to you that you're taking part in cyber-terrorism?
That's right: Slashdot's editors are cyber-terrorists. They coordinate a DOS against small websites, and they attempt to collect moeny from people who wish to be spared the effects of said DOS. Terrorism, plain and simple.
You can fight this and other crimes by slashdot's editors by joining anti-slash. Anti-slash is committed to forcing the editors to own up to their numerous crimes against the geek community. Until our demands are met, we will relentlessly discredit them as a news service through trolling and other means.
Also, props to poopbot and the alan thicke troll. We remember your accomplishments.
Scott McNealy used to always say gravity was on his side. I used to wonder how he figured that since you had IBM, and all the other big iron makers dropping in from above and back then it was microsoft and intel setting up a rockhard floor for him to be squished on.
Sun is now in quite the pickle. Sparcstations arent a contender for the desktop. Their server sales are being trashed by Linux on Intel, and Linux on mainframe.
Their latest play MadHatter looks nice but so does lindows,suse, and redhat. The latter 3 have one great thing going for them, they are one time licenses not perpetual service contracts like mad hatter.
Its no wonder that they paid SCO a licenses fee and are now dissing Linux. Its also no wonder that Bill Joy left the company.
I work with a lot of wireless APs and client cards in our lab.
If you are talking about G type stuff, stay away from Linksys, they have the crappiest range. When I used it in my house, I would get 68db with an Intel 802.11b AP, but the Linksys G router/AP yielded 77db, and that was only going through 2 walls.
I replaced it with a Netgear WGR614, which uses the Intersil Prism GT chipset (as does the D-Link we tested), and got much better range. Similar to straight B. ~68 or 69 db in my master bedroom.
In our office environment, the Linsys G would drop signal after walking past the conference rooms. The Netgear G allowed us to almost walk around the entire floor. I connected a signal booster, and found it to be next to worthless, as it did not improve range. If it did, only by 5 ft or so. It still dropped signal as I walked past the conference rooms.
The measured actual throughput was 4.5mb/s with straight 802.11b, and 21mb/s with the Netgear G.
Quite suprisingly, I had the best results with the Netgear WAB102 Dualband A/B, which is the only A/B AP that uses Atheros second generation A. Tom's Hardware had a write-up on this. Atheros had a whitepaper. I bought 3 of these, and verified the claims.
With a Linksys A+G card, (which uses Atheros 5001X+, as does Netgear WAG511), I got slightly weaker signal strength in my master bedroom 70db), but throughput killed both B and G. I was measuring 24mb/sec throughput in non-turbo mode, and 45mb/sec in turbo mode. In the office, I was able to sustain 7-11mb/sec at the opposite end of the building. The Netgear G was only able to sustain 1-2mb/s. Inside the conf rooms, Linksys G had no signal, Netgear G sustained 7mb/sec, Netgear A in turbo mode sustained 24mb/sec.
In the office, the range of this second generation A actually exceeded that of B, which is something Atheros pointed out in their whitepaper. They said while true A can't go through walls as well as B, the 1st generation A was not performing up to its capabilities. Kind of like how Shannon's law states what is the maximum amount of data that can be carried across wireless, but current technology does not even begin to approach this limit.
I've tested various client cards from Orinoco, to Cisco Aeronet, Prism 2 and Prism 3 cards, and various Atheros based cards. I that the AP affected range more often than the client cards. Though I have found that anything based on the Atmel chipset to be crap. The USB 802.11 card from Linksys (V2.6) uses this chipset. Unfortunately, the Netgear WAB102, uses Atmel for its B, so its B is crap as well. I just use the A portion of it anyways. But the new Netgear triband router, I beleive uses Atheros for all three bands, it just costs an arm and a leg.
The Linksys Triband AP, only uses Atheros for the A, it uses Broadcom for B and G, so its G sucks just like the Linksys B/G stuff.
Somewhere I also read that Linksys will not support any turbo modes in their AP/Routers. (though their A+G client card still supports turbo). Both Atheros and Intersil have planned turbo features. Atheros already had 108mb/s A support in turbo, allowing 45mb/sec throughput by using multiple channels. They already have support for hardware compression, so are promissing a future firmware update that will flip this on, that will allow a turbo mode to sustain 90mb/sec throughput. Its called SuperA. They just released SuperG, which uses multiple B/G channels and compression, to allow 108mb/sec, and I think 45-60mb/sec throughput.
Intersil's turbo technology is called Nitro. Similar (but incompatible) with Atheros's technology.
According to the SecurtyFocus article, the operators had no way of knowing, because the data wasn't "live." This is a common problem with SCADA systems--the systems will display the "last known-good value" if something goes offline. However, the system should also visibly identify the data as "out of service" or "offline," and this didn't seem to happen. That could be an issue at the server, or it could be something blamed on the people commissioning the XA/21 system (assuming the display is configurable enough to allow you to program it at this level).
Even so, there should have been sufficient watchdog messages between the client, the server, and the field hardware for the XA/21 to broadcast a general alarm along the lines of "I can't talk to the stinking field, so we're all flying blind here, you morons!" This is exactly the same as software in my industry (HVAC fire/security systems for large buildings), where if you lose communication to a subsystem or the field, you have to raise alarms all over the place.
The real question is how you could lose such comm and the operators had no visible indication that they were relying on old data. This sounds like a missed requirement, if not insufficient testing.
..when so many corporations own patents on so many intangible things that a corporate dynasty like IBM can bring anyone in the world to their knees financially.
Even foreign governments.
Intellectual property in all of its various forms is being abused by the corporate world - both friends and foes of Linux and otherwise. The madness is the laws supporting this behavior continue to pass, bypassing the individual and wholeheartedly supporting the corporation.
Isn't the government supposed to be working for us? Aren't our rights supposed to be first and foremost in their minds? There is a balance to be maintained, and our rights are not unlimited, but more and more across the entire globe the individual is lost.
Not to be funny but has anyone considered the implications of all these recent intellectual property rights and how it seems more and more that we're being pushed into the draconian future of Johnny Mnemonic and Shadowrun? The only way you get information is to steal it. The only way for another corporation to get information is to hire you to steal it.
I grow more and more distressed at the world my son will grow up in, the conditions he will consider normal, the laws he will break just by trying to think.
Epidemic viral agents/bacteria aren't going to come from some exotic place since they have to be tailor made for our immune system.
Our immune system has been evolving for hundreds of millions years, and it will attack everything that doesn't have the right 'password'. The only way pathogens can get those 'passwords' is just through enormous amounts of random mutation.
The rather prosiac solution is to stop using antibiotics irresponsibly because that just allows the stronger strains to proliferate.
sorry to say, but any company that abuses the gpl isn't getting my hard-earned dollar, even if they are forced to cough up the code at some later point. i see what you're saying about the realteck, but i don't think that can justify buying one of these things from such a shady company
Slashdot Mirror
Ever notice the "beat the rush and see it early" link at the top of slashdot when a new story is about to come out?
Sounds good, doesn't it? To be able to view the pages linked to in the article before the tens of thousands of other slashbots click to view them.
Did it ever occur to you that you're taking part in cyber-terrorism?
That's right: Slashdot's editors are cyber-terrorists. They coordinate a DOS against small websites, and they attempt to collect moeny from people who wish to be spared the effects of said DOS. Terrorism, plain and simple.
You can fight this and other crimes by slashdot's editors by joining anti-slash. Anti-slash is committed to forcing the editors to own up to their numerous crimes against the geek community. Until our demands are met, we will relentlessly discredit them as a news service through trolling and other means.
Also, props to poopbot and the alan thicke troll. We remember your accomplishments.
In sacred jihad,
jihadi_31337
| _ __ | |
_) |_|_)__/_| |
(_) o
Scott McNealy used to always say gravity was on his side. I used to wonder how he figured that since you had IBM, and all the other big iron makers dropping in from above and back then it was microsoft and intel setting up a rockhard floor for him to be squished on.
Sun is now in quite the pickle. Sparcstations arent a contender for the desktop. Their server sales are being trashed by Linux on Intel, and Linux on mainframe.
Their latest play MadHatter looks nice but so does lindows,suse, and redhat. The latter 3 have one great thing going for them, they are one time licenses not perpetual service contracts like mad hatter.
Its no wonder that they paid SCO a licenses fee and are now dissing Linux. Its also no wonder that Bill Joy left the company.
I work with a lot of wireless APs and client cards in our lab.
If you are talking about G type stuff, stay away from Linksys, they have the crappiest range. When I used it in my house, I would get 68db with an Intel 802.11b AP, but the Linksys G router/AP yielded 77db, and that was only going through 2 walls.
I replaced it with a Netgear WGR614, which uses the Intersil Prism GT chipset (as does the D-Link we tested), and got much better range. Similar to straight B. ~68 or 69 db in my master bedroom.
In our office environment, the Linsys G would drop signal after walking past the conference rooms. The Netgear G allowed us to almost walk around the entire floor. I connected a signal booster, and found it to be next to worthless, as it did not improve range. If it did, only by 5 ft or so. It still dropped signal as I walked past the conference rooms.
The measured actual throughput was 4.5mb/s with straight 802.11b, and 21mb/s with the Netgear G.
Quite suprisingly, I had the best results with the Netgear WAB102 Dualband A/B, which is the only A/B AP that uses Atheros second generation A. Tom's Hardware had a write-up on this. Atheros had a whitepaper. I bought 3 of these, and verified the claims.
With a Linksys A+G card, (which uses Atheros 5001X+, as does Netgear WAG511), I got slightly weaker signal strength in my master bedroom 70db), but throughput killed both B and G. I was measuring 24mb/sec throughput in non-turbo mode, and 45mb/sec in turbo mode. In the office, I was able to sustain 7-11mb/sec at the opposite end of the building. The Netgear G was only able to sustain 1-2mb/s. Inside the conf rooms, Linksys G had no signal, Netgear G sustained 7mb/sec, Netgear A in turbo mode sustained 24mb/sec.
In the office, the range of this second generation A actually exceeded that of B, which is something Atheros pointed out in their whitepaper. They said while true A can't go through walls as well as B, the 1st generation A was not performing up to its capabilities. Kind of like how Shannon's law states what is the maximum amount of data that can be carried across wireless, but current technology does not even begin to approach this limit.
I've tested various client cards from Orinoco, to Cisco Aeronet, Prism 2 and Prism 3 cards, and various Atheros based cards. I that the AP affected range more often than the client cards. Though I have found that anything based on the Atmel chipset to be crap. The USB 802.11 card from Linksys (V2.6) uses this chipset. Unfortunately, the Netgear WAB102, uses Atmel for its B, so its B is crap as well. I just use the A portion of it anyways. But the new Netgear triband router, I beleive uses Atheros for all three bands, it just costs an arm and a leg.
The Linksys Triband AP, only uses Atheros for the A, it uses Broadcom for B and G, so its G sucks just like the Linksys B/G stuff.
Somewhere I also read that Linksys will not support any turbo modes in their AP/Routers. (though their A+G client card still supports turbo). Both Atheros and Intersil have planned turbo features. Atheros already had 108mb/s A support in turbo, allowing 45mb/sec throughput by using multiple channels. They already have support for hardware compression, so are promissing a future firmware update that will flip this on, that will allow a turbo mode to sustain 90mb/sec throughput. Its called SuperA. They just released SuperG, which uses multiple B/G channels and compression, to allow 108mb/sec, and I think 45-60mb/sec throughput.
Intersil's turbo technology is called Nitro. Similar (but incompatible) with Atheros's technology.
According to the SecurtyFocus article, the operators had no way of knowing, because the data wasn't "live." This is a common problem with SCADA systems--the systems will display the "last known-good value" if something goes offline. However, the system should also visibly identify the data as "out of service" or "offline," and this didn't seem to happen. That could be an issue at the server, or it could be something blamed on the people commissioning the XA/21 system (assuming the display is configurable enough to allow you to program it at this level).
Even so, there should have been sufficient watchdog messages between the client, the server, and the field hardware for the XA/21 to broadcast a general alarm along the lines of "I can't talk to the stinking field, so we're all flying blind here, you morons!" This is exactly the same as software in my industry (HVAC fire/security systems for large buildings), where if you lose communication to a subsystem or the field, you have to raise alarms all over the place.
The real question is how you could lose such comm and the operators had no visible indication that they were relying on old data. This sounds like a missed requirement, if not insufficient testing.
Tim
..when so many corporations own patents on so many intangible things that a corporate dynasty like IBM can bring anyone in the world to their knees financially.
Even foreign governments.
Intellectual property in all of its various forms is being abused by the corporate world - both friends and foes of Linux and otherwise. The madness is the laws supporting this behavior continue to pass, bypassing the individual and wholeheartedly supporting the corporation.
Isn't the government supposed to be working for us? Aren't our rights supposed to be first and foremost in their minds? There is a balance to be maintained, and our rights are not unlimited, but more and more across the entire globe the individual is lost.
Not to be funny but has anyone considered the implications of all these recent intellectual property rights and how it seems more and more that we're being pushed into the draconian future of Johnny Mnemonic and Shadowrun? The only way you get information is to steal it. The only way for another corporation to get information is to hire you to steal it.
I grow more and more distressed at the world my son will grow up in, the conditions he will consider normal, the laws he will break just by trying to think.
Talonius
Epidemic viral agents/bacteria aren't going to come from some exotic place since they have to be tailor made for our immune system.
Our immune system has been evolving for hundreds of millions years, and it will attack everything that doesn't have the right 'password'. The only way pathogens can get those 'passwords' is just through enormous amounts of random mutation.
The rather prosiac solution is to stop using antibiotics irresponsibly because that just allows the stronger strains to proliferate.
sorry to say, but any company that abuses the gpl isn't getting my hard-earned dollar, even if they are forced to cough up the code at some later point. i see what you're saying about the realteck, but i don't think that can justify buying one of these things from such a shady company