That's why you wouldn't do NAT and stateful packet inspection. Just ACLs. And this is only in a server environment where you know what's going on your web servers. I wouldn't recommend ACLs-only for an office environment where you would have no idea what's going on behind your firewall/acl-router/whatever.
Sure, but ACLs come free with your router. Why buy another piece of hardware? Firewalls are another network component that can break and another device you have to train your staff to use.
If you know what's behind your firewall (and if you're running a bunch of web servers, you better know what's there) then there's no need for a firewall.
Someone once pointed out that Windows NT is one letter offset from VMS.
Anyway, there was a book written about the development of NT called Showstopper (I think). NT was Cutler's attempt to redo the VMS kernel, except even better. Overall, one has to admit he did a pretty good job with the kernel. The real problem with Windows isn't the kernel itself but the crap software that's layered on top that's full of security holes.
I've been reading up on the user-experience with the F3-QAM on AVS Forum and so far it looks like the software supplied with the cards is terrible. How has it been for you? It seems it's also sensitive to the cable provider to which the card is connected. Until I start reading lots of postings from happy Fusion customers, I'm not about to drop 200 bucks on one of their cards.
I did, however, send a request to newegg to stock the card because I figured I'd might be willing to try the card out through them since they're reasonable about RMAs.
AntennaWeb does a great job giving you HDTV reception information. Antennas Direct has a great selection of antennae (antennas?) to choose from and some useful information on which frequency ranges each antenna is useful for.
I still haven't seen anything indicating that the HDTV Wonder will do QAM. AFAIK, the only card out there that does both ATSC and QAM is the DViCO Fusion HDTV III-QAM -- and apparently its software is still crap. Is there some spec out there that explicitly states that the ATI card supports QAM? I've been holding back on purchasing the Fusion card until they get their software straightened out, but I'll sooner drop money on an ATI since I'm certain I can return the card if it stinks (unlike the Fusion).
I love the Adair book except that he got the slider wrong. A slider is thrown like a football -- it should have a tight spiral the axis of rotation of which is down and away from batters (assuming righty on righty). Hitters are told to look for a "red dot" (seen at the near end of the rotational axis) in order to spot an incoming slider.
Yeah, OE doesn't support multi-column sorting -- but its default sort order when clicking on the flag column puts all of your flagged messages at the top and all of your non-flagged emails in order from most recent to oldest. Thunderbird screws it up when you sort by flag: you can get the flagged messages at the top, but all of the non-flagged emails are put in order from oldest to most recent which really seems kind of silly to me.
I'm still puzzled as to why there's no multi-column sorting in Thunderbird. I want to dump Outlook Express, but I really rely on being able to sort my mail, first by whether it's been flagged, and second by the date it arrived. Every time a new Thunderbird release arrives, I dutifully download it, attempt to do a multi-column sort (so that flagged messages are first followed by all other email in order from newest to oldest), and then get bummed out because the feature isn't there.
Well here are some percent water composition numbers for various fruits and veggies from a Virginia Farm Bureau article.
Let's say plants are 75% water (probably a bit high, but I'm being conservative here). That 4 tons of wet-weight per mile becomes 1 ton of wet-weight per mile. It's all in the same order of magnitude. 2000 pounds of dried spinach to push my car 1 mile is still a lot of plant matter.
Anyway, I think the point of this calculation is similar to the point being made by those illustrative lessons (say, in Time Magazine) about how many miles high a trillion dollars in debt would be if we stacked 1 dollar bills, or how many miles of muscle we have in our body, or the number of land mines per person have been buried in Korea. It just offers a different perspective.
How does tellme.com fit in here as a company run by geeks? They got over 200 million in capital for a quintessentially dot-com biz model: a consumer-oriented the-advertising-will-pay-for-everything phone service. They've only made it through the dot-com crash because they're sitting on a ton of cash and they've got AT&T backing them. Besides, they're less technology producers than technology integrators: the speech recognition engine they use is from Nuance.
Anyway, nice premise for an article. It's good in concept, but the writer could've done a better job finding companies that really represent the ideal of companies run by geeks and driven by innovation.
At least it's not Fox producing the new series
on
Doctor Who Comeback
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· Score: 1
Just as long as they pretend that the Fox TV Dr. Who special (from 7 years ago) never happened, I'll be happy. It was so painfully Hollywood. I think there's something to be said for the British sensibilities that came through in the original series.
I'm going to have to renew my membership with the Dr. Who Fan Club of America!
They tried it out on monkeys. Seems it lowered their body temperature and "fasting blood sugar and insulin levels." Not sure if the latter has anything to do with one's general energy level, but I'm certain having a lower body temperature means you'd feel cold all the time.
I remember reading an article about a group of people who are actually trying this diet out. They're the buzzkills we all imagined they'd be: they're always complaining about how cold it is, they're always grumpy, and they're munching on iceberg lettuce when they go out to eat with friends/family. It's sort of pathetic.
They've seen this effect on a whole range of animals. They've done this on rats and have even tried it out on monkeys.
One article from this NIH site seemed to indicate that, despite prolonging an animal's lifespan, caloric-restriction diets didn't seem to do anything about cognitive decline.
From what I've read, it's not a small gain though. That 30% gain is supposedly pretty uniform across all types of animals, from bacteria to mammals. With the average life span in the U.S. hovering around 80, that means it'd buy you an extra 24 years of life.
Don't get me wrong, I'd rather eat my cheeseburger (and ribs and sushi and curries and...gettin' hungry now...) too, but I imagine if you offered an extra quarter century of life to many people, they'd take it.
It seems Sun's software is only making software configuration for a given set of strictly defined tasks easier. Sysadmins also spend a lot of time: 1. installing hardware properly (You think a biz manager would ever bother to put your servers in a nice air-conditioned room with good labelling and tie-wrapped cables? I don't think so.), 2. doing application support, 3. writing scripts that perform special business-specific functions, and 4. installing and configuring weird software packages that won't ever be self-configuring.
So if Sun wants to make certain resources self-configuring, that's great. It'll mean that sysadmins will have a bit more time to do a quality job on their other duties. I don't think too many people are going to lose their jobs.
Re:Hardware solution with caveats for you
on
Cheap KVM Over IP?
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· Score: 1
I have these deployed in all of our servers and I love it. Not only does it provide excellent remote control of Intel-based boxes, but it's all running over ethernet which means that a) there isn't a massive tangle of KVM cables to manage (imagine twelve 1U servers each with three fixed-length cables run to a single KVM switch -- no thank you!) and b) it runs on IP so I've got all of my infrastructure control/communication consolidated on one network. I've reinstalled Linux from scratch on servers from the comfort of my own home at 3AM.
Having been a public high school teacher, I can tell you that kids do all those things already. Those two steps back were already taken before computers ever entered a classroom. Handing out or permitting handhelds in school does not absolve teachers of the basic classroom management responsibilities they've always had. Yes, teachers will need help coming up with new ways to manage these technologies in their classrooms, but that doesn't mean we shouldn't do it. Heck, I've been in business meetings where the person chairing the meeting would refuse to start speaking until everyone had closed the lid on their laptops -- adults are just as guilty as kids of playing with their toys.
As far as a business model being invalid, we need to consider what the purpose of education is in our country. Up until the past few decades, schools were meant to acclimate children to factory life. One could argue that the modern spin on that view is that schools should be acclimating children to life in the information age.
I find it strange that everyone is obsessing about how laptops, PDAs, and computers are used as learning devices in school when that's not what they're really good for (unless you're learning about computers). If you use the business world as a model -- since that's where most computers are used -- you find that people do four things with their computers: organize their lives, create documents, surf the web, and send/receive email. If putting a PDA into a kids hands will help them with just ONE of those tasks -- organizing their lives -- it'll make the kids more productive in school. That's the argument used in the business world for adopting these devices so it stands to reason one can make the same argument in education.
How the PDAs are handled by these kids (including being broken, stolen, etc.) is besides the point. If we know PDAs will help them manage the information that they're bombarded with daily then they should be used. Working out the logisitics is really secondary.
In the writer's outline section he has a few bullet-points that scream "XML!" (I'm paraphrasing here):
1. A core system to handle parsing, verification, etc. -- If app configs were based around XML, you could use any of a dozen XML parsers out there.
2. A configuration format description file. -- Hmmm, sounds like a DTD...
3. OS-neutral. -- XML was meant to be portable from the get-go.
The other items lined up pretty well with what XML is all about as well. Anyway, that said, I'm not so sure this'll ever happen since, from a developer's point of view, it's a lot simpler to slurp in a bunch of lines from a text file with fgets and chop it up into words than to have to somehow link in a third-party XML parser.
It's important to note, though, that he states DRAM is more efficient (cost-wise? speed-wise? whatever) when it comes to storing seekable data. I wonder if that means they're using DRAM for their search indices and plain old disk for their cached content. DRAM is ideal for completely random access to multiple pieces of data, whereas disk does okay for serial access to data, the location of which is well known.
1 KWh goes for around a dime where I live. So at 0.15 KWh from 120ml of methanol (based on your calculations), the equivalent power-utility provided electricity would cost 1.5 cents. If we assume the methanol goes for about a dollar a gallon, then 120ml (roughly 1/24th of a gallon) would cost 4 cents. That comes out to about a quarter per KWh if you use the methanol fuel cell. That's pretty similar to solar costs.
Hmmm. That's too bad. I was envisioning a massive refitting of the world's power delivery infrastructure.
My sister also taught in China. At some point during her stay in China, a party member mentioned that he was looking forward to meeting my father who was slated to visit my sister in a couple months. She, of course, had heard nothing about a visit -- that is, until she received some (pre-opened) mail from my dad several weeks later in which he tells her he's planning on visiting her in China.
Anyway, it's a bit unfair to compare the U.S. government's intended use of carnivore to the (not so new?) email screening policy in mainland China. I don't like carnivore any more than the next/. reader, but if you look at the track record of China compared to the U.S., there really is a huge difference: the U.S. government has never made it a habit to crack open people's snail mail.
With the exception of the bit about "severe economic regimentation", the rest of the definition seems to describe the PRC political system quite well.
Let's look at a definition of communism:
A theoretical economic system characterized by the collective ownership of property and by the organization of labor for the common advantage of all members.
My money's on "fascist" not "communist" as a proper label for the Chinese government.
Slashdot Mirror
That's why you wouldn't do NAT and stateful packet inspection. Just ACLs. And this is only in a server environment where you know what's going on your web servers. I wouldn't recommend ACLs-only for an office environment where you would have no idea what's going on behind your firewall/acl-router/whatever.
Sure, but ACLs come free with your router. Why buy another piece of hardware? Firewalls are another network component that can break and another device you have to train your staff to use.
If you know what's behind your firewall (and if you're running a bunch of web servers, you better know what's there) then there's no need for a firewall.
Someone once pointed out that Windows NT is one letter offset from VMS.
Anyway, there was a book written about the development of NT called Showstopper (I think). NT was Cutler's attempt to redo the VMS kernel, except even better. Overall, one has to admit he did a pretty good job with the kernel. The real problem with Windows isn't the kernel itself but the crap software that's layered on top that's full of security holes.
I've been reading up on the user-experience with the F3-QAM on AVS Forum and so far it looks like the software supplied with the cards is terrible. How has it been for you? It seems it's also sensitive to the cable provider to which the card is connected. Until I start reading lots of postings from happy Fusion customers, I'm not about to drop 200 bucks on one of their cards.
I did, however, send a request to newegg to stock the card because I figured I'd might be willing to try the card out through them since they're reasonable about RMAs.
AntennaWeb does a great job giving you HDTV reception information. Antennas Direct has a great selection of antennae (antennas?) to choose from and some useful information on which frequency ranges each antenna is useful for.
I still haven't seen anything indicating that the HDTV Wonder will do QAM. AFAIK, the only card out there that does both ATSC and QAM is the DViCO Fusion HDTV III-QAM -- and apparently its software is still crap. Is there some spec out there that explicitly states that the ATI card supports QAM? I've been holding back on purchasing the Fusion card until they get their software straightened out, but I'll sooner drop money on an ATI since I'm certain I can return the card if it stinks (unlike the Fusion).
I love the Adair book except that he got the slider wrong. A slider is thrown like a football -- it should have a tight spiral the axis of rotation of which is down and away from batters (assuming righty on righty). Hitters are told to look for a "red dot" (seen at the near end of the rotational axis) in order to spot an incoming slider.
Yeah, OE doesn't support multi-column sorting -- but its default sort order when clicking on the flag column puts all of your flagged messages at the top and all of your non-flagged emails in order from most recent to oldest. Thunderbird screws it up when you sort by flag: you can get the flagged messages at the top, but all of the non-flagged emails are put in order from oldest to most recent which really seems kind of silly to me.
I'm still puzzled as to why there's no multi-column sorting in Thunderbird. I want to dump Outlook Express, but I really rely on being able to sort my mail, first by whether it's been flagged, and second by the date it arrived. Every time a new Thunderbird release arrives, I dutifully download it, attempt to do a multi-column sort (so that flagged messages are first followed by all other email in order from newest to oldest), and then get bummed out because the feature isn't there.
Habit is a strange thing.
Well here are some percent water composition numbers for various fruits and veggies from a Virginia Farm Bureau article.
Let's say plants are 75% water (probably a bit high, but I'm being conservative here). That 4 tons of wet-weight per mile becomes 1 ton of wet-weight per mile. It's all in the same order of magnitude. 2000 pounds of dried spinach to push my car 1 mile is still a lot of plant matter.
Anyway, I think the point of this calculation is similar to the point being made by those illustrative lessons (say, in Time Magazine) about how many miles high a trillion dollars in debt would be if we stacked 1 dollar bills, or how many miles of muscle we have in our body, or the number of land mines per person have been buried in Korea. It just offers a different perspective.
How does tellme.com fit in here as a company run by geeks? They got over 200 million in capital for a quintessentially dot-com biz model: a consumer-oriented the-advertising-will-pay-for-everything phone service. They've only made it through the dot-com crash because they're sitting on a ton of cash and they've got AT&T backing them. Besides, they're less technology producers than technology integrators: the speech recognition engine they use is from Nuance.
Anyway, nice premise for an article. It's good in concept, but the writer could've done a better job finding companies that really represent the ideal of companies run by geeks and driven by innovation.
Just as long as they pretend that the Fox TV Dr. Who special (from 7 years ago) never happened, I'll be happy. It was so painfully Hollywood. I think there's something to be said for the British sensibilities that came through in the original series.
I'm going to have to renew my membership with the Dr. Who Fan Club of America!
They tried it out on monkeys. Seems it lowered their body temperature and "fasting blood sugar and insulin levels." Not sure if the latter has anything to do with one's general energy level, but I'm certain having a lower body temperature means you'd feel cold all the time.
I remember reading an article about a group of people who are actually trying this diet out. They're the buzzkills we all imagined they'd be: they're always complaining about how cold it is, they're always grumpy, and they're munching on iceberg lettuce when they go out to eat with friends/family. It's sort of pathetic.
They've seen this effect on a whole range of animals. They've done this on rats and have even tried it out on monkeys.
One article from this NIH site seemed to indicate that, despite prolonging an animal's lifespan, caloric-restriction diets didn't seem to do anything about cognitive decline.
From what I've read, it's not a small gain though. That 30% gain is supposedly pretty uniform across all types of animals, from bacteria to mammals. With the average life span in the U.S. hovering around 80, that means it'd buy you an extra 24 years of life.
Don't get me wrong, I'd rather eat my cheeseburger (and ribs and sushi and curries and...gettin' hungry now...) too, but I imagine if you offered an extra quarter century of life to many people, they'd take it.
It seems Sun's software is only making software configuration for a given set of strictly defined tasks easier. Sysadmins also spend a lot of time: 1. installing hardware properly (You think a biz manager would ever bother to put your servers in a nice air-conditioned room with good labelling and tie-wrapped cables? I don't think so.), 2. doing application support, 3. writing scripts that perform special business-specific functions, and 4. installing and configuring weird software packages that won't ever be self-configuring.
So if Sun wants to make certain resources self-configuring, that's great. It'll mean that sysadmins will have a bit more time to do a quality job on their other duties. I don't think too many people are going to lose their jobs.
I have these deployed in all of our servers and I love it. Not only does it provide excellent remote control of Intel-based boxes, but it's all running over ethernet which means that a) there isn't a massive tangle of KVM cables to manage (imagine twelve 1U servers each with three fixed-length cables run to a single KVM switch -- no thank you!) and b) it runs on IP so I've got all of my infrastructure control/communication consolidated on one network. I've reinstalled Linux from scratch on servers from the comfort of my own home at 3AM.
As far as a business model being invalid, we need to consider what the purpose of education is in our country. Up until the past few decades, schools were meant to acclimate children to factory life. One could argue that the modern spin on that view is that schools should be acclimating children to life in the information age.
How the PDAs are handled by these kids (including being broken, stolen, etc.) is besides the point. If we know PDAs will help them manage the information that they're bombarded with daily then they should be used. Working out the logisitics is really secondary.
There's cute and then there's irritating. The ewoks, for instance, were borderline. Jar Jar, however, is well into the realm of the truly annoying.
In the writer's outline section he has a few bullet-points that scream "XML!" (I'm paraphrasing here):
1. A core system to handle parsing, verification, etc. -- If app configs were based around XML, you could use any of a dozen XML parsers out there.
2. A configuration format description file. -- Hmmm, sounds like a DTD...
3. OS-neutral. -- XML was meant to be portable from the get-go.
The other items lined up pretty well with what XML is all about as well. Anyway, that said, I'm not so sure this'll ever happen since, from a developer's point of view, it's a lot simpler to slurp in a bunch of lines from a text file with fgets and chop it up into words than to have to somehow link in a third-party XML parser.
It's important to note, though, that he states DRAM is more efficient (cost-wise? speed-wise? whatever) when it comes to storing seekable data. I wonder if that means they're using DRAM for their search indices and plain old disk for their cached content. DRAM is ideal for completely random access to multiple pieces of data, whereas disk does okay for serial access to data, the location of which is well known.
1 KWh goes for around a dime where I live. So at 0.15 KWh from 120ml of methanol (based on your calculations), the equivalent power-utility provided electricity would cost 1.5 cents. If we assume the methanol goes for about a dollar a gallon, then 120ml (roughly 1/24th of a gallon) would cost 4 cents. That comes out to about a quarter per KWh if you use the methanol fuel cell. That's pretty similar to solar costs.
Hmmm. That's too bad. I was envisioning a massive refitting of the world's power delivery infrastructure.
Anyway, it's a bit unfair to compare the U.S. government's intended use of carnivore to the (not so new?) email screening policy in mainland China. I don't like carnivore any more than the next /. reader, but if you look at the track record of China compared to the U.S., there really is a huge difference: the U.S. government has never made it a habit to crack open people's snail mail.
Let's look at a definition of communism:
A theoretical economic system characterized by the collective ownership of property and by the organization of labor for the common advantage of all members.
My money's on "fascist" not "communist" as a proper label for the Chinese government.