Heh. Who needs nukes when you have a 1000 gallons of gasoline? If you can find footage of a true (non-hollywood "Outbreak") fuel-air explosion, they are very impressive. And in many respects, they are more destructive than nukes.
It's windows only for the odd software they use to make the service look faster than it is (I've not taken it apart, but it sounds like a local packet proxy engine to combat round trip times for TCP packet acknowledgments.) It'll work with almost any network gear, but at annoyingly low speeds -- not bad for packets moving 50k to 75k miles. Each way.
Excuse me? What does signal theft have to do with DSL? Stealing DSL is akin to stealing cable... it requires an actual physical connection to the network. Once you've bribed a telco tech to connect you to someone's DSLAM, there isn't any "modified equipment" necessary. I seriously doubt anyone's claims of stealing DSL.
(Stealing DirectWay sat. internet is a different story.)
That depends on where and from whom you are buying. But, no, it doesn't scale down to the pennies people want to pay for highspeed internet connections.
Let's do some math... Given a DS3 @ 45Mbps for 10,000$US per month and an inaccurate "10% rule", that DS3 can support 450 users which makes the break even on bandwidth costs @ 22.25$US per month. Add in the amortized costs of hardware and associated facilities, software and hardware support contracts, employee wages, taxes, and benefits... the costs can triple. In the dialup world, the difference could be made up by overselling the capacity by very large margins. That's rather hard to do in the "always on, instant access" broadband world. Add to the mix, the "cheap" buyers are residential and thus tend to use their connections in bursts -- all of them at the same time.
The hardware is expensive. The software is expensive. Training is expensive. Connectivity is expensive. And nobody is willing to pay what it really costs. Do you want to pay 100$/month for 144K IDSL? (technically, I spend almost that for 128k ISDN -- all of it for the ISDN line.)
People need to understand why a T1 costs so much more than a dialup connection. And bit-for-bit, the T1 is cheaper than dialup.
[If you could see the actual operating numbers for an ISP, it'd make you sick. There's no profit margin in selling residential services and only a small margin in commercial services.]
It's not so much an issue of restore time but one of archival longevity. There are a great number of instances where various data must be kept for a number of years (telco call records, court documents, financial transactions, tax records, etc., etc., etc.)
Any "mission critical systems" should have sufficient redundancy and resiliance that their failure would be beyond the scope of any backup planning -- like, say, airplanes crashing into the data center, fires, wars,...
(First off, it's 100Mb/s; and in fact, it's a 125MHz carrier on the cable which a far cry from 100 MILLIhertz.)
All magnetic media has a shelf life. Video tapes, DAT tapes, DLC tapes, floppies, and even hard drives (etc.) will slowly lose their magnetic charge. Hard drives, however, are far more susceptible to degradation. The largest problem with a hard drive on a shelf is variations in temperature and ambient magnetics (the earth's magnetic field fluctuates.) A drive left on a shelf for a few years may be perfectly functional once it's been re-initialized ("low level formated") but the data will be toast.
Umm, no they cannot. They don't have to tell their customers or make the source available to them, but they do have to inform the owner of the original code that they've placed it inside their own code. (I've never seen a BSD licensed stipulating that anyone can take the code as their own and sell it.)
Further more, the "ask and sign" is very far from an accurate depiction. The "ask" part takes months and turns into "beg" before it approaches the "sign" part. I've gone through the process with other vendors (never with Sun) and it's always a trip to the deeper recesses of hell.
Buy an old used unit that isn't bound by the later "must subscribe" rules. As tivo has said repeatedly, units that came from the factory with 1.3 or earlier can be used as dumb "digital VCRs".
That's not to say they won't end up breaking that functionality (they did during the 2.0 beta), but they are "legally" obligated to fix it -- the older units were marketed as usable without a subscription.
They cannot do any worse than Tribune. The biggest problem with TiVo is their helpless dependance on TMS to tell them what exists. I still have a tivo that doesn't have channel 28 (WRDC) any more because TMS deleted the FCC channel number from the data they sent to tivo -- they did that to dozens of stations across the US. It took over a week for anyone to tell the truth -- TMS fscked up. My favorite falshood was that they were changing to channel 27! (I promptly pointed the *ahem*person to the fcc's web site clearly indicating the duration of their broadcast license.)
[I fixed it myself on the active tivo and immediately broke their stupid-ass lineup update scripts so they cannot do it again. I use DTivo's now. And they aren't breakable scripts anymore.]
First, I cannot understand why people are expending the energy to crack the password when they can much more easily change it. These are the same people who seem to have forgotten TiVo can change that password everytime the unit calls in. In fact, they could set a different password per unit... every time it calls in. The more people push on TiVo, the harder they will be forced to push back. At first, the password was just plain text -- and easy to find. Then they added SHA1 encryption but that was discovered and the password guessed within minutes. Now, it's not that simple.
Second, (read this several times!) no one is even certain the password is something that can be entered via the remote.
I don't know about the current ("modern") tests, but the ones from the NT4 era were laughablly simple to pass. I've been amazed by the number of people who *pay* for classes to prepare for the exam. If you have to take "credit hour" courses to be able to pass the exam(s), then you're probablly heading down the wrong path.
Personally, I don't give a rats ass about framed certifications. Passing a multiple choice test does not make one an expert. A decade of pulling your hair out fixing problems makes one an expert. 10mins of actual experience is valuable than a warehouse of certifications in my book. (I've seen more than my share of decorated dumbasses.)
That's handled by "partitioning" on the same switch. Most switches are smart enough to tell they've been plugged into themselves. And even if they don't, broadcast suppression will catch such setups really well -- all it takes is one broadcast packet to flood both ports. STP prevents loops between switches. In this case, that'd be plugging ports from multiple switches into the same hub.
There's an even easier way to fix the problem in your example... don't give the idiots access to multiple ports in the same network.:-)
And I would submit it's not very wise to create a city sized switched ethernet network.
Spanning tree is good for small networks. However, the larger the network -- in both number of nodes, and physical area coverage -- the longer it takes to map the topology and that map becomes extremely complex. Once the network is large enough for loop detection to take longer than the hold down time, it's all over. Add in the volume of normal traffic and the network may never be able to reconverge. They'd have to power the switched network up one node at a time from the STP root outward.
Personally, I tend to disable spanning tree. I don't like seeing the broadcast spew it generates. My network(s) aren't large enough to matter. And yes, I've introduced loops by accident before -- I had two WAPs in bridge mode on the same channel too close to each other. The switch (cat 2948g) gets really annoyed when I do that. (it's actually kinda funny)
Except when the switch doesn't understand the layer 3 (and specific layer 2) protocol being used... I live in a Novell network; most of the switches (feeder switches) in the network treat IPX traffic as broadcast traffic. (Yes, Novell generates a lot of true broadcast stuff, but every single packet isn't a broadcast.)
I've got a better question... where did they find the money to buy all that stuff (or think they were)? The very first item in the inventory is nearing 1M$ (GSR's are blindingly expensive, even used.)
And there are things in the list like Ultra2's, Sparc1's, and a Portmaster 2E. From which draw(s) did they find that crap?
Wrong. You can be standing in a room with plenty of O2 but too much CO2. If your body absorbs too much CO2, it'll alter your blood chemistry which will kill you with 100% certainty. (It doesn't take much of a change in pH to cause all sorts of problems.) Plus, CO2 displaces O2 with sufficient efficency to prevent adiquate O2 from entering the body (and CO2 to leave.)
Go talk to the experts at NASA about O2 and CO2 levels.
Carbon dioxide is a non-toxic gas. It has beneficial uses and is the "fizz" in carbonated beverages. When frozen, it is "dry ice". At concentrations of from 2,500 ppm to 5,000 ppm carbon dioxide can cause headaches. At extremely high levels of 100,000 ppm (10 percent) people lose consciousness in ten minutes, and at 200,000 ppm (20 percent) CO2 causes partial or complete closure of the glottis.
(It's a bit difficult to crawl out of the room after you've blacked out.)
Correct. Apple sued - and LOST. Which only makes me wonder that's changed that makes them think they can get a different answer 20 years later. (The famous "look and feel" case as I recall.)
... and that key/functionality have been available as far back as NT 3.5 (yes, 3 dot 5 period.) I remeber that being an option in the 4dos shell (command.com replacement) And I think Shell+ for OS9 (not the MacOS 9) had tab completion, but that's reachin' way back there.
You've obviously never tried to get the manufacturer to replace a failed motherboard. It'll take most of that 1yr warranty to get it done.
I had Tyan replace a bad motherboard a few years ago. It took six months. It took three weeks to get a support monkey to send me the RMA request form...
Abuse of telephones and faxes was dealt with years ago
No it wasn't. If it were, in fact, dealt with then we wouldn't have so many asses sending junk faxes and 100% automated telephone marketing. I get at least one call a week from either some dumbass carpet cleaning company (I live in an apartment. Carpet cleaning is not my problem. And they know damn well it is) or an equally stupid insurance company ("... here's Frank to tell you more.") Both of those are 100% illegal -- there MUST be a human at the other end of the line; a computer can dial and answer, but it has to put a human on when I answer.
The collective harm of email SPAM is, provablly, orders of magnitude greater than junk faxes. How much bandwidth is consumed globally in both carrying and fighting spam? Why do we need faster and faster connections globally and to the end user...
As for government and politics... these have never worked and never will. The only people qualified to run a country won't come anywhere near it. The least qualified are the ones lining up to screw things up. And even the most qualified people become corrupted by the process and power. And the winds changing directions every few years doesn't help.
Well, I was going to comment about the Lucent 5ESS central office switch running AT&T System V UNIX (in my case R3?) However, people may not realize that OS predates IP.
This is a small problem for any telco trying to meet requirements from law enforcement. (CALEA)
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Heh. Who needs nukes when you have a 1000 gallons of gasoline? If you can find footage of a true (non-hollywood "Outbreak") fuel-air explosion, they are very impressive. And in many respects, they are more destructive than nukes.
It's windows only for the odd software they use to make the service look faster than it is (I've not taken it apart, but it sounds like a local packet proxy engine to combat round trip times for TCP packet acknowledgments.) It'll work with almost any network gear, but at annoyingly low speeds -- not bad for packets moving 50k to 75k miles. Each way.
Excuse me? What does signal theft have to do with DSL? Stealing DSL is akin to stealing cable... it requires an actual physical connection to the network. Once you've bribed a telco tech to connect you to someone's DSLAM, there isn't any "modified equipment" necessary. I seriously doubt anyone's claims of stealing DSL.
(Stealing DirectWay sat. internet is a different story.)
s/LEC's/RBOC's/
The baby bells are the ones who "own" all the cabling in the country. It's very rare to find non-bell wires in the last miles.
- T1's and above are not cheap.
That depends on where and from whom you are buying. But, no, it doesn't scale down to the pennies people want to pay for highspeed internet connections.Let's do some math... Given a DS3 @ 45Mbps for 10,000$US per month and an inaccurate "10% rule", that DS3 can support 450 users which makes the break even on bandwidth costs @ 22.25$US per month. Add in the amortized costs of hardware and associated facilities, software and hardware support contracts, employee wages, taxes, and benefits... the costs can triple. In the dialup world, the difference could be made up by overselling the capacity by very large margins. That's rather hard to do in the "always on, instant access" broadband world. Add to the mix, the "cheap" buyers are residential and thus tend to use their connections in bursts -- all of them at the same time.
The hardware is expensive. The software is expensive. Training is expensive. Connectivity is expensive. And nobody is willing to pay what it really costs. Do you want to pay 100$/month for 144K IDSL? (technically, I spend almost that for 128k ISDN -- all of it for the ISDN line.)
People need to understand why a T1 costs so much more than a dialup connection. And bit-for-bit, the T1 is cheaper than dialup.
[If you could see the actual operating numbers for an ISP, it'd make you sick. There's no profit margin in selling residential services and only a small margin in commercial services.]
DSS is insanely profitable. (Even more so if you "write off" the cost of all the satellites.)
Or discussions with other ISPs to whom they are trying to sell their customer base.
It's not so much an issue of restore time but one of archival longevity. There are a great number of instances where various data must be kept for a number of years (telco call records, court documents, financial transactions, tax records, etc., etc., etc.)
Any "mission critical systems" should have sufficient redundancy and resiliance that their failure would be beyond the scope of any backup planning -- like, say, airplanes crashing into the data center, fires, wars,...
(First off, it's 100Mb/s; and in fact, it's a 125MHz carrier on the cable which a far cry from 100 MILLIhertz.)
All magnetic media has a shelf life. Video tapes, DAT tapes, DLC tapes, floppies, and even hard drives (etc.) will slowly lose their magnetic charge. Hard drives, however, are far more susceptible to degradation. The largest problem with a hard drive on a shelf is variations in temperature and ambient magnetics (the earth's magnetic field fluctuates.) A drive left on a shelf for a few years may be perfectly functional once it's been re-initialized ("low level formated") but the data will be toast.
Umm, no they cannot. They don't have to tell their customers or make the source available to them, but they do have to inform the owner of the original code that they've placed it inside their own code. (I've never seen a BSD licensed stipulating that anyone can take the code as their own and sell it.)
Further more, the "ask and sign" is very far from an accurate depiction. The "ask" part takes months and turns into "beg" before it approaches the "sign" part. I've gone through the process with other vendors (never with Sun) and it's always a trip to the deeper recesses of hell.
Buy an old used unit that isn't bound by the later "must subscribe" rules. As tivo has said repeatedly, units that came from the factory with 1.3 or earlier can be used as dumb "digital VCRs".
That's not to say they won't end up breaking that functionality (they did during the 2.0 beta), but they are "legally" obligated to fix it -- the older units were marketed as usable without a subscription.
They cannot do any worse than Tribune. The biggest problem with TiVo is their helpless dependance on TMS to tell them what exists. I still have a tivo that doesn't have channel 28 (WRDC) any more because TMS deleted the FCC channel number from the data they sent to tivo -- they did that to dozens of stations across the US. It took over a week for anyone to tell the truth -- TMS fscked up. My favorite falshood was that they were changing to channel 27! (I promptly pointed the *ahem*person to the fcc's web site clearly indicating the duration of their broadcast license.)
[I fixed it myself on the active tivo and immediately broke their stupid-ass lineup update scripts so they cannot do it again. I use DTivo's now. And they aren't breakable scripts anymore.]
First, I cannot understand why people are expending the energy to crack the password when they can much more easily change it. These are the same people who seem to have forgotten TiVo can change that password everytime the unit calls in. In fact, they could set a different password per unit ... every time it calls in. The more people push on TiVo, the harder they will be forced to push back. At first, the password was just plain text -- and easy to find. Then they added SHA1 encryption but that was discovered and the password guessed within minutes. Now, it's not that simple.
Second, (read this several times!) no one is even certain the password is something that can be entered via the remote.
I don't know about the current ("modern") tests, but the ones from the NT4 era were laughablly simple to pass. I've been amazed by the number of people who *pay* for classes to prepare for the exam. If you have to take "credit hour" courses to be able to pass the exam(s), then you're probablly heading down the wrong path.
Personally, I don't give a rats ass about framed certifications. Passing a multiple choice test does not make one an expert. A decade of pulling your hair out fixing problems makes one an expert. 10mins of actual experience is valuable than a warehouse of certifications in my book. (I've seen more than my share of decorated dumbasses.)
That's handled by "partitioning" on the same switch. Most switches are smart enough to tell they've been plugged into themselves. And even if they don't, broadcast suppression will catch such setups really well -- all it takes is one broadcast packet to flood both ports. STP prevents loops between switches. In this case, that'd be plugging ports from multiple switches into the same hub.
:-)
There's an even easier way to fix the problem in your example... don't give the idiots access to multiple ports in the same network.
And I would submit it's not very wise to create a city sized switched ethernet network.
Spanning tree is good for small networks. However, the larger the network -- in both number of nodes, and physical area coverage -- the longer it takes to map the topology and that map becomes extremely complex. Once the network is large enough for loop detection to take longer than the hold down time, it's all over. Add in the volume of normal traffic and the network may never be able to reconverge. They'd have to power the switched network up one node at a time from the STP root outward.
Personally, I tend to disable spanning tree. I don't like seeing the broadcast spew it generates. My network(s) aren't large enough to matter. And yes, I've introduced loops by accident before -- I had two WAPs in bridge mode on the same channel too close to each other. The switch (cat 2948g) gets really annoyed when I do that. (it's actually kinda funny)
Except when the switch doesn't understand the layer 3 (and specific layer 2) protocol being used... I live in a Novell network; most of the switches (feeder switches) in the network treat IPX traffic as broadcast traffic. (Yes, Novell generates a lot of true broadcast stuff, but every single packet isn't a broadcast.)
I've got a better question... where did they find the money to buy all that stuff (or think they were)? The very first item in the inventory is nearing 1M$ (GSR's are blindingly expensive, even used.)
And there are things in the list like Ultra2's, Sparc1's, and a Portmaster 2E. From which draw(s) did they find that crap?
Go talk to the experts at NASA about O2 and CO2 levels.
See also: Indoor Air Quality
- Carbon dioxide
(It's a bit difficult to crawl out of the room after you've blacked out.)Carbon dioxide is a non-toxic gas. It has beneficial uses and is the "fizz" in carbonated beverages. When frozen, it is "dry ice". At concentrations of from 2,500 ppm to 5,000 ppm carbon dioxide can cause headaches. At extremely high levels of 100,000 ppm (10 percent) people lose consciousness in ten minutes, and at 200,000 ppm (20 percent) CO2 causes partial or complete closure of the glottis.
Correct. Apple sued - and LOST. Which only makes me wonder that's changed that makes them think they can get a different answer 20 years later. (The famous "look and feel" case as I recall.)
... and that key/functionality have been available as far back as NT 3.5 (yes, 3 dot 5 period.) I remeber that being an option in the 4dos shell (command.com replacement) And I think Shell+ for OS9 (not the MacOS 9) had tab completion, but that's reachin' way back there.
You've obviously never tried to get the manufacturer to replace a failed motherboard. It'll take most of that 1yr warranty to get it done.
I had Tyan replace a bad motherboard a few years ago. It took six months. It took three weeks to get a support monkey to send me the RMA request form...
- Abuse of telephones and faxes was dealt with years ago
No it wasn't. If it were, in fact, dealt with then we wouldn't have so many asses sending junk faxes and 100% automated telephone marketing. I get at least one call a week from either some dumbass carpet cleaning company (I live in an apartment. Carpet cleaning is not my problem. And they know damn well it is) or an equally stupid insurance company ("... here's Frank to tell you more.") Both of those are 100% illegal -- there MUST be a human at the other end of the line; a computer can dial and answer, but it has to put a human on when I answer.The collective harm of email SPAM is, provablly, orders of magnitude greater than junk faxes. How much bandwidth is consumed globally in both carrying and fighting spam? Why do we need faster and faster connections globally and to the end user...
As for government and politics... these have never worked and never will. The only people qualified to run a country won't come anywhere near it. The least qualified are the ones lining up to screw things up. And even the most qualified people become corrupted by the process and power. And the winds changing directions every few years doesn't help.
Well, that's sorta the whole point of halon (and thus, why isn't used anymore.)
Well, I was going to comment about the Lucent 5ESS central office switch running AT&T System V UNIX (in my case R3?) However, people may not realize that OS predates IP.
This is a small problem for any telco trying to meet requirements from law enforcement. (CALEA)