I remember something far worse: he signed an executive order stating encryption would aid terrorists and should be criminalized. Now look at how insecure our communications hardware is today due to that wisdom.
In other words, we should be advocating hacking in order to better secure our systems, and we should be advocating terrorism in order to better secure our nations?
No, we should be outlawing people setting up wireless networks. They can be considered as terrorists and have no right to do things the professionals do. Silly kids think they have the right to use electronic equipment anyway they see fit.
Now that would be interesting. Hybrids are already are stealthy and quiet like a bicycle. Perhaps Mazda could make a radar evading stealth hybrid car to complete the sports image.
Communication is the essense of human life. It is life. It is our goal. Nothing will stop the progress of communication techology. Being afraid it will be disabled because of a disaster is silly.
I remember before we had the internet. If we wanted to communicate, we had to make arrangements to connect our computers together. That's no big deal to me. If the internet had some great big meltdown today, we have far much better tools and equipment to string it back together. Something bad today would make it that much stronger tomorrow.
This is all beginning to sound like the Y2K thing all over again. Let me tell you how afraid people were over controllers of my manufacturing lines that had no concept of what a date was. But they wouldn't listen, because I wasn't a "consultant" they were paying the millions to take care of a fear.
The end of the internet is a joke. There is no way to bring it down. Its like using nuclear bombs to kill cockroaches. Bombing the planet will only allow them to conquer the surface of the planet. I'd prefer not to be afraid of technology and realize its shortcomings. Every problem we have with electronic communications only creates opportunities for its further advancement.
Sunspots cause thousands of skin cancer deaths each year too. Changes in air pressure causes heart attacks. A wrong look from a person causes another to go postal. There are just some things in the world we can work with.
The internet shut down and stopped our business? Reroute around the problem. That's why the internet can survive a nuclear war. Don't be passive and expect it to survive world events on its own. It still takes a brain to drive the thing around someone who left their dead car in the middle of the information superhighway.
If the internet shuts down and you still can't send email, its your own damn fault. In the old days, you had to dial up another connection and complete the route. Now we have more tools cheaply at our disposal: wireless, satellite, laser, and dedicated lines everywhere. To not know how to use them is missing out on great opportunities.
The Time Warner people out here in Kansas City do not officially "support" Linux, but are in the LUG mailing list, have local usenet newsgroups for related issues, and the tech support people are very helpful. If only all ISPs were like this...
I did this the first time I got cable. It was a 486 with Windows95 installed on it. Took the guy 30 minutes to install his warez on it. After he left, I got out my real computer and put the garage sale relic back in the attic.
The "solution" you mentioned wouldn't really work, as the spammers could simply download your images as well.
I see a solution in this. It would be the spammer's own DOS attack. If they willing to download/dev/zero in order to place their refer entry, that's great, more power to them. If they don't download data, that invalid refer entry could easily be dismissed. Solution? I'm sure someone will crank out a spammer-refer-mod to include in apache.conf over this.:)
So this guy had a drug lab, but didn't have $40000?
He was a chemistry student. Imagine where all that glassware and chemicals came from. Yes, that is correct. His excuses for shoplifting include the casual reply of something like "return an item, forget to tell the clerk, and walk out with merchandise."
We try to help people by sending them through school, setting them up in houses, but some are absolutely determined to do bad things. His last straw was breaking into his neighbor's house to "steal a pen," got beat up by neighbor, and things went downhill from there. The stench of sulphur compounds, mysterious holes dug in his yard, and tanks of freon stored outside in this fine residential neighborhood where kids played yielded phone calls of concern to appropriate agencies. This is why we have a prison system.
An officer once told me "a person can get away with murder in this city." Not if people complain loudly. And this is why we have people writing letters about companies that take advantage of our economy. Laws start with the people.
In America, you can buy your freedom. Someone I was related to was a dumbass for using his chemistry degree to set up a nice drug lab. He was caught, because of his antisocial antics disturbed his neighbors and they called the help of the EPA, which called the FBI, which called the DEA, which called state marshalls...
His lawyer stated it would cost him $40,000 to guarantee him his freedom. Interestingly, one of his "partners" happened to be a judges son, who got off free. Since my uncle didn't have a defense fund, he is now thankfully serving time and is not using his abilities to further stockpile his toxic waste dump (I'm not sure why it takes *boxes* of different cyanide compounds to manufacture E.)
My own experience with lawyers many years ago was getting out of 5 nice speeding tickets in one year. $1055 for combined legal costs to maintain my perfect driving record. I would learn from my misdeads others would spend money to work the legal system for their vices. I feel ashamed for my experience, but I learned this is a true way of life for others.
To prevent this dreaded war upon version numbers, a good formula would be something like:
V=1-1/X
As your revisions increment, you will be closer to the famed 1.0 release, but never quite there. The press can always ask, "ARE WE THERE YET?" and always be told, "IN A FEW MINUTES!"
Three phase motors are more efficient. Consider single phase or split phase electrical current, where every cycle has a dead spot while alternating polarity. During this time, the motor has no torque. The motor can be thought of as pulsing the load. Now look at the redundancy provided by three phases and our happy motor has no dropout periods of magnetic excitement. And all phases of rotation have a strong pull. This is good.
Same can be said for three phase generators. The alternator in your car is three phase for this very good reason. If your car alternator was only single, or split phase, your car stereo would pick up some serious electrical noise. The lower parts of the three phase waveform are minimal compared to the zero crossing point, or dead spot, of only one phase.
Also, three phase motors can be reversed. This useful feature can be done by "reversing" two phase wires. The three phase waveform actually has a direction and you can rotate a motor in the opposite direction by swaping two wires.
Converting three phase into one phase is easy. Just only use any two wires and that will be your single phase relative to each other. Or if the three phase is in the Y configuration, pick any phase and the neutral wire. That's how you can get 277 volts off 480 volts. Any two phases will get you 480, while one phase and neutral will get you 277 volts. Touching one wire will give you the nasty shock of 277 volts and possibly burned. Touching two phases will give you the full 480 volts and quite possibly blow your fingertips off. It just depends on how you take your power off the transformer windings.
And if anyone asks why use voltages so high, its because of safety reasons. Higher voltages mean less current, smaller wires, less chance of overheating and fire. The added requirement of metal sheilding is cheap compared to much thicker wire and the possibility of loose connections of unusually bulky high amperage circuits. A rather small, flexible 480 volt wire can take the place of a very heavy, difficult to place 120 volt wire. If we were to supply our building with just 120 volts, rather than 14.4KV, the copper bus bars would be insanely huge, and could explode if thermal tension created loose connections. The 14.4KV allowed us to use small, flexible, underground cables with easy to install connections. Higher voltages require extra safety guards to protect against the environment, but its worth it.
Ouch. Every place I worked at had 14.4KV branched out to several substations fused at 90A, which was good for at least 1.6MW, which branched out into even smaller substations. A failure at one point was rarely noticed elsewhere. Except for the occasional exploding capacitor on the pole outside. Worked great for years with few surprises...
One day I would find out why the 14.4KV fiberglass-epoxy reinforced fuses had mufflers installed on them. Remember that electrical current resists change. If the circuit breaks, the magnetic field surrounding the current collapses and increases the voltage until it goes *somewhere.* Each substation transformer was the magnetic equivalent to a ten foot tall capacitor. Well, if the fuse blows, the the remaining energy in the transformer's magnetic field immediately collapses (the magnetic equivalent of a ten foot tall capacitor) and detonates the fuse filament. This muffler vents this energy harmlessly into the substation as heat without blowing the panels off.
One day, when turning back on the power from vacation, we would find one of these fuses didn't have its muffler installed... And we would learn how things would *seem* to work on two phases.
We would try to install more fuses without the muffler on that phase. The magnetic field was strong enough to pop the fuse out of its holder when the switch was thrown. A wire tie solved the problem while parts were being ordered.
Moral of the story: if you work on high voltage equipment, always leave it as you found it.
I work in industrial maintenance and the most interesting electrical problems happen when the weather changes.
120VAC isn't too bad. Connections soaked in water might survive for a while until the corrosion finally breaks it down, melts the wirenuts, etc. Getting shocked by it isn't enough to blow your fingertips off. 240 volts is usually just 110 volts split into two phases, so it doesn't present any worse of a problem. 480 volts is another story...
480 volts gets interesting when the humidity rises and gets absorbed by the dust surrounding breakers and other switching components. Often, it will flash across the phases, vaporizing the debris, and mysteriously tripping the breaker. No one will figure this out until they happen to take a close look at the wiring, and the humidy from their breath will illuminate the brightest flash they have ever seen in their lives.
My old ISP rotated their apache logs every few hours. Why? A tail -f from the shell quickly answered that question. When apache_access_log gets over a gigabyte in a few hours, keeping logs for months would be...interesting.
I don't know about geek women, but this appears to be sponsored by the same people who threw extravagant and very memorable parties at the ALS in Atlanta over the years (Linux Journal.) I suspect many of the women I saw were in sales at the many booths and oh did they look good. Did you know kernel hackers could put on a show and dance too? You might be surprised.
Re:Why do i care?
on
Linux 3.0
·
· Score: 5, Insightful
why do i care?
The kernel is the framework that connects to the hardware. Its like the chassis on your car, designed to give all components a secure mounting point to connect to each other. Without the kernel, all your component software would still be functional, but not to useful as they would be laying on the ground in a proof of concept state. The kernel supplies all the hardware to hook things up and make them into a fully functional machine.
The init process and scripts, libraries, and applications are the engine, powertrain components, interior, and all the other details to make a complete operating system. The kernel is simply the framework and body to make it all possible. Compile options allow you to have lightweight race car or a dumptruck.
I remember when people discovered the "more evil than satan himself" results, everyone linked to the stories about it, obscuring the original search.
I'm sure SearchKing will get its "more evil than satan" 15 minutes of fame over this. Because I feel they are evil, whoring search trolls. (can they sue me over this too?)
Slashdot Mirror
I remember something far worse: he signed an executive order stating encryption would aid terrorists and should be criminalized. Now look at how insecure our communications hardware is today due to that wisdom.
I have seen a bit of everything microsoft, with old trusty gpl'd wget...
resdcn.gtwy.uscourts.gov - - [30/Jul/2002:08:34:03 -0500] " stuff HTTP/1.0" 200 2054 "stuff" "Mozilla/4.51 [en] (Win95; U)"
rchdcn.gtwy.uscourts.gov - - [17/Oct/2002:16:33:52 -0500] "GET stuff HTTP/1.1" 200 1184 "stuff" "Mozilla/4.0 (compatible; MSIE 5.5; Windows 98)"
rchdcn.gtwy.uscourts.gov - - [16/Oct/2002:16:11:20 -0500] "GET stuff HTTP/1.1" 200 4706 "stuff" "Mozilla/4.0 (compatible; MSIE 5.5; Windows NT 5.0; T312461)"
resdcn.gtwy.uscourts.gov - - [08/Oct/2002:08:26:30 -0500] "GET stuff HTTP/1.0" 200 31748 "stuff" "Wget/1.8.1"
In other words, we should be advocating hacking in order to better secure our systems, and we should be advocating terrorism in order to better secure our nations?
No, we should be outlawing people setting up wireless networks. They can be considered as terrorists and have no right to do things the professionals do. Silly kids think they have the right to use electronic equipment anyway they see fit.
Now that would be interesting. Hybrids are already are stealthy and quiet like a bicycle. Perhaps Mazda could make a radar evading stealth hybrid car to complete the sports image.
Communication is the essense of human life. It is life. It is our goal. Nothing will stop the progress of communication techology. Being afraid it will be disabled because of a disaster is silly.
I remember before we had the internet. If we wanted to communicate, we had to make arrangements to connect our computers together. That's no big deal to me. If the internet had some great big meltdown today, we have far much better tools and equipment to string it back together. Something bad today would make it that much stronger tomorrow.
This is all beginning to sound like the Y2K thing all over again. Let me tell you how afraid people were over controllers of my manufacturing lines that had no concept of what a date was. But they wouldn't listen, because I wasn't a "consultant" they were paying the millions to take care of a fear.
The end of the internet is a joke. There is no way to bring it down. Its like using nuclear bombs to kill cockroaches. Bombing the planet will only allow them to conquer the surface of the planet. I'd prefer not to be afraid of technology and realize its shortcomings. Every problem we have with electronic communications only creates opportunities for its further advancement.
Sunspots cause thousands of skin cancer deaths each year too. Changes in air pressure causes heart attacks. A wrong look from a person causes another to go postal. There are just some things in the world we can work with.
The internet shut down and stopped our business? Reroute around the problem. That's why the internet can survive a nuclear war. Don't be passive and expect it to survive world events on its own. It still takes a brain to drive the thing around someone who left their dead car in the middle of the information superhighway.
If the internet shuts down and you still can't send email, its your own damn fault. In the old days, you had to dial up another connection and complete the route. Now we have more tools cheaply at our disposal: wireless, satellite, laser, and dedicated lines everywhere. To not know how to use them is missing out on great opportunities.
If you had a valid email address, I would have emailed you an answer to your second question.
What's so hard about reading 800K disks? My stock linux kernel seems to be able to format and read/write these formats on my toshiba laptop:
fd fd0u1120 fd0u1680 fd0u1760 fd0u360 fd0u820
fd0 fd0u1440 fd0u1722 fd0u1840 fd0u720 fd0u830
fd0u1040 fd0u1600 fd0u1743 fd0u1920 fd0u800
Its a hoax until I see links to mirrors of his inbox. It would be for historical purposes of course...
And if you don't want to "nice" the root servers, put your local ISPs nameservers first in your /etc/resolv.conf file:
nameserver 12.34.56.78 --your isp nameserver here
nameserver 127.0.0.1 --this is bind on localhost
The first nameserver will be the first on the list, and localhost is second, which will use bind to query the root servers.
The Time Warner people out here in Kansas City do not officially "support" Linux, but are in the LUG mailing list, have local usenet newsgroups for related issues, and the tech support people are very helpful. If only all ISPs were like this...
I did this the first time I got cable. It was a 486 with Windows95 installed on it. Took the guy 30 minutes to install his warez on it. After he left, I got out my real computer and put the garage sale relic back in the attic.
The "solution" you mentioned wouldn't really work, as the spammers could simply download your images as well.
/dev/zero in order to place their refer entry, that's great, more power to them. If they don't download data, that invalid refer entry could easily be dismissed. Solution? I'm sure someone will crank out a spammer-refer-mod to include in apache.conf over this. :)
I see a solution in this. It would be the spammer's own DOS attack. If they willing to download
So this guy had a drug lab, but didn't have $40000?
He was a chemistry student. Imagine where all that glassware and chemicals came from. Yes, that is correct. His excuses for shoplifting include the casual reply of something like "return an item, forget to tell the clerk, and walk out with merchandise."
We try to help people by sending them through school, setting them up in houses, but some are absolutely determined to do bad things. His last straw was breaking into his neighbor's house to "steal a pen," got beat up by neighbor, and things went downhill from there. The stench of sulphur compounds, mysterious holes dug in his yard, and tanks of freon stored outside in this fine residential neighborhood where kids played yielded phone calls of concern to appropriate agencies. This is why we have a prison system.
An officer once told me "a person can get away with murder in this city." Not if people complain loudly. And this is why we have people writing letters about companies that take advantage of our economy. Laws start with the people.
In America, you can buy your freedom. Someone I was related to was a dumbass for using his chemistry degree to set up a nice drug lab. He was caught, because of his antisocial antics disturbed his neighbors and they called the help of the EPA, which called the FBI, which called the DEA, which called state marshalls...
His lawyer stated it would cost him $40,000 to guarantee him his freedom. Interestingly, one of his "partners" happened to be a judges son, who got off free. Since my uncle didn't have a defense fund, he is now thankfully serving time and is not using his abilities to further stockpile his toxic waste dump (I'm not sure why it takes *boxes* of different cyanide compounds to manufacture E.)
My own experience with lawyers many years ago was getting out of 5 nice speeding tickets in one year. $1055 for combined legal costs to maintain my perfect driving record. I would learn from my misdeads others would spend money to work the legal system for their vices. I feel ashamed for my experience, but I learned this is a true way of life for others.
I wouldn't throw the party just yet. This was just her round of boot camp training before she goes in front of the lawmakers with her big guns.
To prevent this dreaded war upon version numbers, a good formula would be something like:
V=1-1/X
As your revisions increment, you will be closer to the famed 1.0 release, but never quite there. The press can always ask, "ARE WE THERE YET?" and always be told, "IN A FEW MINUTES!"
Three phase motors are more efficient. Consider single phase or split phase electrical current, where every cycle has a dead spot while alternating polarity. During this time, the motor has no torque. The motor can be thought of as pulsing the load. Now look at the redundancy provided by three phases and our happy motor has no dropout periods of magnetic excitement. And all phases of rotation have a strong pull. This is good.
Same can be said for three phase generators. The alternator in your car is three phase for this very good reason. If your car alternator was only single, or split phase, your car stereo would pick up some serious electrical noise. The lower parts of the three phase waveform are minimal compared to the zero crossing point, or dead spot, of only one phase.
Also, three phase motors can be reversed. This useful feature can be done by "reversing" two phase wires. The three phase waveform actually has a direction and you can rotate a motor in the opposite direction by swaping two wires.
Converting three phase into one phase is easy. Just only use any two wires and that will be your single phase relative to each other. Or if the three phase is in the Y configuration, pick any phase and the neutral wire. That's how you can get 277 volts off 480 volts. Any two phases will get you 480, while one phase and neutral will get you 277 volts. Touching one wire will give you the nasty shock of 277 volts and possibly burned. Touching two phases will give you the full 480 volts and quite possibly blow your fingertips off. It just depends on how you take your power off the transformer windings.
And if anyone asks why use voltages so high, its because of safety reasons. Higher voltages mean less current, smaller wires, less chance of overheating and fire. The added requirement of metal sheilding is cheap compared to much thicker wire and the possibility of loose connections of unusually bulky high amperage circuits. A rather small, flexible 480 volt wire can take the place of a very heavy, difficult to place 120 volt wire. If we were to supply our building with just 120 volts, rather than 14.4KV, the copper bus bars would be insanely huge, and could explode if thermal tension created loose connections. The 14.4KV allowed us to use small, flexible, underground cables with easy to install connections. Higher voltages require extra safety guards to protect against the environment, but its worth it.
Ouch. Every place I worked at had 14.4KV branched out to several substations fused at 90A, which was good for at least 1.6MW, which branched out into even smaller substations. A failure at one point was rarely noticed elsewhere. Except for the occasional exploding capacitor on the pole outside. Worked great for years with few surprises...
One day I would find out why the 14.4KV fiberglass-epoxy reinforced fuses had mufflers installed on them. Remember that electrical current resists change. If the circuit breaks, the magnetic field surrounding the current collapses and increases the voltage until it goes *somewhere.* Each substation transformer was the magnetic equivalent to a ten foot tall capacitor. Well, if the fuse blows, the the remaining energy in the transformer's magnetic field immediately collapses (the magnetic equivalent of a ten foot tall capacitor) and detonates the fuse filament. This muffler vents this energy harmlessly into the substation as heat without blowing the panels off.
One day, when turning back on the power from vacation, we would find one of these fuses didn't have its muffler installed... And we would learn how things would *seem* to work on two phases.
We would try to install more fuses without the muffler on that phase. The magnetic field was strong enough to pop the fuse out of its holder when the switch was thrown. A wire tie solved the problem while parts were being ordered.
Moral of the story: if you work on high voltage equipment, always leave it as you found it.
I work in industrial maintenance and the most interesting electrical problems happen when the weather changes.
120VAC isn't too bad. Connections soaked in water might survive for a while until the corrosion finally breaks it down, melts the wirenuts, etc. Getting shocked by it isn't enough to blow your fingertips off. 240 volts is usually just 110 volts split into two phases, so it doesn't present any worse of a problem. 480 volts is another story...
480 volts gets interesting when the humidity rises and gets absorbed by the dust surrounding breakers and other switching components. Often, it will flash across the phases, vaporizing the debris, and mysteriously tripping the breaker. No one will figure this out until they happen to take a close look at the wiring, and the humidy from their breath will illuminate the brightest flash they have ever seen in their lives.
I agree. All new research should be GPL licensed so that it will be free for all generations to impliment.
My old ISP rotated their apache logs every few hours. Why? A tail -f from the shell quickly answered that question. When apache_access_log gets over a gigabyte in a few hours, keeping logs for months would be...interesting.
They will just let anyone make laws these days.
I don't know about geek women, but this appears to be sponsored by the same people who threw extravagant and very memorable parties at the ALS in Atlanta over the years (Linux Journal.) I suspect many of the women I saw were in sales at the many booths and oh did they look good. Did you know kernel hackers could put on a show and dance too? You might be surprised.
why do i care?
The kernel is the framework that connects to the hardware. Its like the chassis on your car, designed to give all components a secure mounting point to connect to each other. Without the kernel, all your component software would still be functional, but not to useful as they would be laying on the ground in a proof of concept state. The kernel supplies all the hardware to hook things up and make them into a fully functional machine.
The init process and scripts, libraries, and applications are the engine, powertrain components, interior, and all the other details to make a complete operating system. The kernel is simply the framework and body to make it all possible. Compile options allow you to have lightweight race car or a dumptruck.
I remember when people discovered the "more evil than satan himself" results, everyone linked to the stories about it, obscuring the original search.
I'm sure SearchKing will get its "more evil than satan" 15 minutes of fame over this. Because I feel they are evil, whoring search trolls. (can they sue me over this too?)