For installing onto your own machines you can add in arbitrary new keys for free.
If I want to create my own distro and allow other people to install it _without disabling secure boot or manually adding new keys_ then I need to pay $99.
Incidentally, it costs $99 to publish apps to the Apple app store, so this doesn't seem like a crazy price.
Currently you can stick in a USB stick and boot from it into a live RedHat image.
Under secure boot, if they go this route that will continue to work. If they go the self-registered route they need to get people to reboot into the BIOS, either add in a new key or disable secure boot, then reboot.
For most of us here this is no big deal, but for my grandma that would be a showstopper.
Under secure boot, the hardware validates the bootloader, the bootloader validates the OS, and the OS validates the userspace code.
Redhat could easily write some userspace code to talk to certain parts of the hardware and sign it with their key and it would be allowed to run just fine.
But you need to boot into the bios to do it, and RedHat doesn't want to make everyone do that just to boot Linux.
Then of course there's the conspiracy theory that says that just because UEFI supports it doesn't mean that all the vendors will actually give users the ability.
Given that they talk about updating the set of keys, I'd be surprised if they couldn't revoke keys that are found to have leaked. They could also likely track back the signed code to the key that signed it, and thus put you on the spot.
But there are a lot of scientific jobs that use it fairly regularly.
My favorite were the rate-of-change questions:
You have a ladder leaning up against a house, the bottom starts to slide out away from the house. Assuming a certain amount of resistance due to friction, and a man halfway up the ladder, give a formula for the position of the man with time.
We tested elastic collisions and momentum using steel pucks hovering on air cushions that would periodically spark down through the base and leave marks on a piece of paper. Fun stuff. Also ballistics with launch ramps and ball bearings, powered wave table machines, lots of good stuff.
I'm Canadian. I took calculus (differential and integral) in my last year of high school. I was 17. It was an optional course (you needed grade 12 algebra first) but it was available.
I'm more visual than auditory, especially for things like directions (I'll draw a map). I have to be really interested in something to actually learn significant amounts from an audio track--a video of a presenter with background graphics (or even a slideshow with audio track) is more engaging.
For something like physics or chemistry, an audio lecture can give the highlights but is going to be useless for the details--imagine trying to verbally explain a long complicated formula with multiple terms, superscripts, subscripts, parentheses, etc.
my brother and his buddies got together and ordered a dozen of them, so shipping per board is significantly less. Most people buying these will have a usb charger of some kind laying around (I know I've got several), and many people will have spare SD cards as well.
I'd estimate my brother might have spent $45 on his, maybe less.
We have a build farm using both optimized NFS and SAN-base filesystems. The SAN is a lot faster than the NFS but also far more expensive. However, local disk is far faster than both of them but makes it hard to do virtual machine failover.
I would dearly love to have a physical cluster of machines for building on (a single build takes roughly 20 hours on our build farm) but the IT gods have decreed that the build farm SHALL be virtualized.
There are a lot of studies showing that artificial sweeteners (aspartame, sucralose, acesulfame potassium, saccharine , etc.) aren't particularly healthy.
From to the wikipedia article on artificial sweeteners:
"Rats given sweeteners have steadily increased calorie intake, increased body weight, and increased adiposity (fatness). [6] Furthermore, the natural responses to eating sugary foods (eating less at the next meal and using some of the extra calories to warm the body after the sugary meal) are gradually lost.[8]
A 2005 study by the University of Texas Health Science Center at San Antonio showed that increased weight gain and obesity were associated with increased use of diet soda in a population-based study. The study did not establish whether increased weight gain leads to increased consumption of diet drinks or whether consumption of diet drinks could have an effect on weight gain.[9]"
.why is it the govts responsibility to protect stupid people from their own stupid actions?
Because those stupid actions cost everyone *else* money. They drive up the cost of health insurance for everyone, drive up the cost of medicare when they get old, etc.
Also, it probably won't take them out of the gene pool...most of them don't get really gigantic until after they reproduce.
An alternate explanation for all the problems with kids is that they (or their parents) are being exposed to too many chemicals and/or modified foods. I'm healthy with no allergies, same with the rest of my family. I even try to eat reasonably health. My kids are both sensitive to milk and soy. Hopefully they grow out of it.
The opposite of a patent is a trade secret. If you keep it as a trade secret and then die, society as a whole may lose the invention.
If you publish your invention as a patent you get protection for some time but when it expires anyone can use it (this is the "promoting progress" part).
Maybe at the last second it prints a capcha-style message telling you to wait some number of seconds before pushing the button--weed out some of the bots.
The proper solution is to give each subscriber a share of the available bandwidth based on their subscribed plan or SLA and then allow them to specify how to prioritize the traffic within their share. If they want their VoIP packets to take priority over their bittorrent download they could specify that, but they shouldn't be able to have their VoIP packets take priority over *my* bittorrent download.
Sure this takes shaping resources, but the cost of that is dropping constantly.
Currently I get mail through work and though my university alumni account. I work from home, and I get maybe one spam a day out of dozens of emails, certainly nothing to worry about. I have no issues with broken clients or broken servers.
I don't care about the rest. An i3 is fine for a cpu, I only need a couple gig of RAM. A full 1900x1200 screen would be awesome though, and currently there are only two laptops on the planet that I know of that still have them available.
Slashdot Mirror
For installing onto your own machines you can add in arbitrary new keys for free.
If I want to create my own distro and allow other people to install it _without disabling secure boot or manually adding new keys_ then I need to pay $99.
Incidentally, it costs $99 to publish apps to the Apple app store, so this doesn't seem like a crazy price.
Currently you can stick in a USB stick and boot from it into a live RedHat image.
Under secure boot, if they go this route that will continue to work. If they go the self-registered route they need to get people to reboot into the BIOS, either add in a new key or disable secure boot, then reboot.
For most of us here this is no big deal, but for my grandma that would be a showstopper.
Under secure boot, the hardware validates the bootloader, the bootloader validates the OS, and the OS validates the userspace code.
Redhat could easily write some userspace code to talk to certain parts of the hardware and sign it with their key and it would be allowed to run just fine.
But you need to boot into the bios to do it, and RedHat doesn't want to make everyone do that just to boot Linux.
Then of course there's the conspiracy theory that says that just because UEFI supports it doesn't mean that all the vendors will actually give users the ability.
Redhat could conceivably make their grub only load redhat-signed code by default. Might make sense for RHEL, maybe not for Fedora.
Given that they talk about updating the set of keys, I'd be surprised if they couldn't revoke keys that are found to have leaked. They could also likely track back the signed code to the key that signed it, and thus put you on the spot.
But there are a lot of scientific jobs that use it fairly regularly.
My favorite were the rate-of-change questions:
You have a ladder leaning up against a house, the bottom starts to slide out away from the house. Assuming a certain amount of resistance due to friction, and a man halfway up the ladder, give a formula for the position of the man with time.
We tested elastic collisions and momentum using steel pucks hovering on air cushions that would periodically spark down through the base and leave marks on a piece of paper. Fun stuff. Also ballistics with launch ramps and ball bearings, powered wave table machines, lots of good stuff.
I'm Canadian. I took calculus (differential and integral) in my last year of high school. I was 17. It was an optional course (you needed grade 12 algebra first) but it was available.
I'm more visual than auditory, especially for things like directions (I'll draw a map). I have to be really interested in something to actually learn significant amounts from an audio track--a video of a presenter with background graphics (or even a slideshow with audio track) is more engaging.
For something like physics or chemistry, an audio lecture can give the highlights but is going to be useless for the details--imagine trying to verbally explain a long complicated formula with multiple terms, superscripts, subscripts, parentheses, etc.
It's easy enough to write some arm assembly and then cross-assemble it on another machine and copy it over.
I wouldn't start from scratch though, you'd have to do full system bringup. Better to run your app in assembly on top of Linux.
my brother and his buddies got together and ordered a dozen of them, so shipping per board is significantly less. Most people buying these will have a usb charger of some kind laying around (I know I've got several), and many people will have spare SD cards as well.
I'd estimate my brother might have spent $45 on his, maybe less.
The biggest problem with a router/access point is that you don't get the extra I/O pins, which makes it less useful for hacking physical projects.
for a home machine why not run a GUI?. It's not like it hurts anything.
We have a build farm using both optimized NFS and SAN-base filesystems. The SAN is a lot faster than the NFS but also far more expensive. However, local disk is far faster than both of them but makes it hard to do virtual machine failover.
I would dearly love to have a physical cluster of machines for building on (a single build takes roughly 20 hours on our build farm) but the IT gods have decreed that the build farm SHALL be virtualized.
There are a lot of studies showing that artificial sweeteners (aspartame, sucralose, acesulfame potassium, saccharine , etc.) aren't particularly healthy.
From to the wikipedia article on artificial sweeteners:
"Rats given sweeteners have steadily increased calorie intake, increased body weight, and increased adiposity (fatness). [6] Furthermore, the natural responses to eating sugary foods (eating less at the next meal and using some of the extra calories to warm the body after the sugary meal) are gradually lost.[8]
A 2005 study by the University of Texas Health Science Center at San Antonio showed that increased weight gain and obesity were associated with increased use of diet soda in a population-based study. The study did not establish whether increased weight gain leads to increased consumption of diet drinks or whether consumption of diet drinks could have an effect on weight gain.[9]"
As long as you renounce all claims to any state-funded programs....education, roads, health care, medicare, social security, fire protection, etc.
.why is it the govts responsibility to protect stupid people from their own stupid actions?
Because those stupid actions cost everyone *else* money. They drive up the cost of health insurance for everyone, drive up the cost of medicare when they get old, etc.
Also, it probably won't take them out of the gene pool...most of them don't get really gigantic until after they reproduce.
An alternate explanation for all the problems with kids is that they (or their parents) are being exposed to too many chemicals and/or modified foods. I'm healthy with no allergies, same with the rest of my family. I even try to eat reasonably health. My kids are both sensitive to milk and soy. Hopefully they grow out of it.
The opposite of a patent is a trade secret. If you keep it as a trade secret and then die, society as a whole may lose the invention.
If you publish your invention as a patent you get protection for some time but when it expires anyone can use it (this is the "promoting progress" part).
Maybe at the last second it prints a capcha-style message telling you to wait some number of seconds before pushing the button--weed out some of the bots.
Your search results show three models available new, two of which are more expensive than the macbook pro 17".
The proper solution is to give each subscriber a share of the available bandwidth based on their subscribed plan or SLA and then allow them to specify how to prioritize the traffic within their share. If they want their VoIP packets to take priority over their bittorrent download they could specify that, but they shouldn't be able to have their VoIP packets take priority over *my* bittorrent download.
Sure this takes shaping resources, but the cost of that is dropping constantly.
Currently I get mail through work and though my university alumni account. I work from home, and I get maybe one spam a day out of dozens of emails, certainly nothing to worry about. I have no issues with broken clients or broken servers.
For me at least email works and works well.
I don't care about the rest. An i3 is fine for a cpu, I only need a couple gig of RAM. A full 1900x1200 screen would be awesome though, and currently there are only two laptops on the planet that I know of that still have them available.
http://mhkaufman.blogspot.ca/2009/11/home-made-electric-smoker-with-pid.html