Friends dont let friends virtualize production systems with any 'native' operating system. Get a hypervisor that doesn't suck so bad it needs another OS to run, and your windows and linux guys will get along much better.
Church of Wifi has a hacked firmware-based worm that runs around and replaces firmware on APs, and then looks for other AP's to attack, and propagates itself. The key to this kind of attack, is that it could be potentially undetectable - how do you know if the linksys firmware was replaced or slightly modified or not? Another great use, would be to drop TOR endpoints on every single box infected:)
We call these 'aircraft carriers' and 'submarines', and guard them with a whole squadron of aircraft:) Is land really at that big of a premium in Russia?
Give me a break here. Novell is (Barely) known as an enterprise back office company. They make awesome management products, have a decent linux distribution, and a load of magic glue to hold all that together. Where in the world does aircraft radar and embedded manufacturing fit into that business model? Is Novell hiring it's competitors to do marketing for it? Eesh!
Talk about making some history up to suit the present. Free as in beer means it's something that has no dollar figure price tag, ie. it costs nothing. Free as in speech, means it's a 'freedom' or a right, not something you can attach a dollar figure to.
But aren't most IT departments drastically understaffed as it is? We rely heavily on automated processes to handle the more labor intensive and repetitive checks and operations we carry out on a daily basis. It frees up our staff for project planning, design, and troubleshooting stuff that's failed. Would *you* want to manually check 5000 systems for operational status every 10 minutes? I'd have to hire hundreds of people to handle that kind of load, so in a sense, sure it is 'replacing humans', but give me a break. We could all ride in rickshaw's too, pulled by humans, instead of buying 'auto-mobiles' to automate carrying 4-8 people or what have you...should we be worried about cars stealing jobs of rickshaw pullers?
$850 for the laptop vs $650 for the text books. Are the eBooks free? I *highly* doubt it. So it's more like $850 for the laptop + $400 (or more!) for the eTexts from Scholastic of whoever. Plus you gotta add in support costs (how much support do you have to do on a hunk of dead tree?), and a 1-2 year lifecycle (if you're *lucky*), vs. a 5-7 year life cycle for books. And now, if you drop/break/destroy/steal/loose a laptop, you don't just loose that Chemistry text book, but also that students entire course catalog. Are the ebook licenses per machine? Are they per-year payments, or is it a one time fee?
I work IT in a (substantially larger) public school system in VA, and I can tell, nobody is harder on computers than kids (if they mean it or just don't know any better). But then again, with only 350 kids (hah, our smallest elementary schools is at least double that), I can see this as something that *could* work. No child is going to 'fall thru the cracks', and at that level, it is almost more cost effective. If the laptops are incorporated into the curriculum appropriately (used for REAL learning, instead of number crunchers and checking hotmail every ten minutes like most school PCs), I could see these kids getting one helluva value out of it. Setup something like rsync to run during homeroom over the wireless link that will account for the PC's, backup the kids portfolio of homework, push new stuff....hrm, this could work out to be neat after all:)
I just hope they don't get raped on etext fees by their publishers of choice, like we would have been. Renew a (high school) calculus book every year. HAHA!
I think the key reason to have that middle layer is for scalability these days. Buying 15 smaller switches, and collapsing/trunking 200 switches onto 15/30 Gig/10Gig uplinks to a core means my core only needs 15/30 ports, instead of 200+. Sure, you don't *need* it, if you can afford the port density of that size on your core, but any decent sized network is going to be pressed for that kind of cash:) It's significantly cheaper/easier to provided redundancy for 30 GigE ports than it is to provide redundancy for 150 GigE ports (both in cost and wiring complexity...). But, if you've only got 15 switches, I'd just forgo the distribution layer, as it'd be cheaper and easier for you to manage a single core (or maybe 2) with a single 15 port GigE blade or something than to setup proper distribution switch layers.
But, as you grow, definitely make sure you investigate it - most of my sites have 3-4 distribution switches, serving 8-10 access switches each, but I've got one site where the previous designer decided a distrbution layer was unneccesary. He left me with 83!!! GigE fiber ports terminated on 2 core chassis ('cause the vendor didn't sell anything with 83 GigE ports in one chassis...that should have been a warning sign). So, when I want to upgrade that sites equipment, I'm kind of up a creek with no paddle, as it's INCREDIBLY disruptive and hard to move all that fiber, etc.
So, like the parent said, 'it depends', and make sure you are planning for realistic growth over 4-5 year period (at least)...
Why do distributions and such on the live data set? Stream through this system at highspeed, and drop the data onto a datawarehouse, who's *entire purpose in life* is to do historical crap.
Computers aren't really being used heavily as 'teachers', or even 'teaching tools' directly involving students. I work for a mid/large district (~50K kids), and I'd say 90% of our computer usage is either electronic testing of classroom taught material (for things like state standardized tests, or district analytical tests), communication between teachers/staff, or administrative/statistical analysis work - grade averaging, scheduling, inventory, hr/finance, etc. We have a few special-needs kids who have 'computer teachers' that were paid for by big-ticket grant items, but most of our desktop PCs are used for email and data analysis, not 'teaching' the kids. It's helpful to find out that every kid at one school missed a specfic question on a standardized test, as you can then look at the curriculum that school used and possibly identify a flaw. Things like that are the REAL use for computers in education.
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Friends dont let friends virtualize production systems with any 'native' operating system.
Get a hypervisor that doesn't suck so bad it needs another OS to run, and your windows and linux guys will get along much better.
Church of Wifi has a hacked firmware-based worm that runs around and replaces firmware on APs, and then looks for other AP's to attack, and propagates itself. :)
The key to this kind of attack, is that it could be potentially undetectable - how do you know if the linksys firmware was replaced or slightly modified or not?
Another great use, would be to drop TOR endpoints on every single box infected
It is the business of the future to be dangerous.
We call these 'aircraft carriers' and 'submarines', and guard them with a whole squadron of aircraft :)
Is land really at that big of a premium in Russia?
Give me a break here. Novell is (Barely) known as an enterprise back office company. They make awesome management products, have a decent linux distribution, and a load of magic glue to hold all that together.
Where in the world does aircraft radar and embedded manufacturing fit into that business model? Is Novell hiring it's competitors to do marketing for it? Eesh!
But using your unlocked home analogy, should I be arrested for knocking on the front door and having it swing wide open?
Talk about making some history up to suit the present.
Free as in beer means it's something that has no dollar figure price tag, ie. it costs nothing.
Free as in speech, means it's a 'freedom' or a right, not something you can attach a dollar figure to.
But aren't most IT departments drastically understaffed as it is? We rely heavily on automated processes to handle the more labor intensive and repetitive checks and operations we carry out on a daily basis. It frees up our staff for project planning, design, and troubleshooting stuff that's failed. Would *you* want to manually check 5000 systems for operational status every 10 minutes? I'd have to hire hundreds of people to handle that kind of load, so in a sense, sure it is 'replacing humans', but give me a break.
We could all ride in rickshaw's too, pulled by humans, instead of buying 'auto-mobiles' to automate carrying 4-8 people or what have you...should we be worried about cars stealing jobs of rickshaw pullers?
Archive.org's goal is to get tons of that stuff, and already have hundreds of gigs available for free download!
You keep using that word but I don't think you know what it means!
Those all suck, get eDirectory, which rules.
And it runs on linux. And it's cheap!
They STILL haven't fixed the numerous problems with their flagship BF2 title.
And why is their stock going up news for nerds? Somebody own evil empire shares?
$850 for the laptop vs $650 for the text books.
:)
Are the eBooks free? I *highly* doubt it. So it's more like $850 for the laptop + $400 (or more!) for the eTexts from Scholastic of whoever.
Plus you gotta add in support costs (how much support do you have to do on a hunk of dead tree?), and a 1-2 year lifecycle (if you're *lucky*), vs. a 5-7 year life cycle for books. And now, if you drop/break/destroy/steal/loose a laptop, you don't just loose that Chemistry text book, but also that students entire course catalog. Are the ebook licenses per machine? Are they per-year payments, or is it a one time fee?
I work IT in a (substantially larger) public school system in VA, and I can tell, nobody is harder on computers than kids (if they mean it or just don't know any better).
But then again, with only 350 kids (hah, our smallest elementary schools is at least double that), I can see this as something that *could* work. No child is going to 'fall thru the cracks', and at that level, it is almost more cost effective. If the laptops are incorporated into the curriculum appropriately (used for REAL learning, instead of number crunchers and checking hotmail every ten minutes like most school PCs), I could see these kids getting one helluva value out of it.
Setup something like rsync to run during homeroom over the wireless link that will account for the PC's, backup the kids portfolio of homework, push new stuff....hrm, this could work out to be neat after all
I just hope they don't get raped on etext fees by their publishers of choice, like we would have been. Renew a (high school) calculus book every year. HAHA!
Ok, I use and deploy VOIP ALOT.
What the hell is a SPITStorm?
Mhz? :)
Or!
Watts of thermal power on the die surface!
I think the key reason to have that middle layer is for scalability these days. :)
Buying 15 smaller switches, and collapsing/trunking 200 switches onto 15/30 Gig/10Gig uplinks to a core means my core only needs 15/30 ports, instead of 200+. Sure, you don't *need* it, if you can afford the port density of that size on your core, but any decent sized network is going to be pressed for that kind of cash
It's significantly cheaper/easier to provided redundancy for 30 GigE ports than it is to provide redundancy for 150 GigE ports (both in cost and wiring complexity...).
But, if you've only got 15 switches, I'd just forgo the distribution layer, as it'd be cheaper and easier for you to manage a single core (or maybe 2) with a single 15 port GigE blade or something than to setup proper distribution switch layers.
But, as you grow, definitely make sure you investigate it - most of my sites have 3-4 distribution switches, serving 8-10 access switches each, but I've got one site where the previous designer decided a distrbution layer was unneccesary. He left me with 83!!! GigE fiber ports terminated on 2 core chassis ('cause the vendor didn't sell anything with 83 GigE ports in one chassis...that should have been a warning sign). So, when I want to upgrade that sites equipment, I'm kind of up a creek with no paddle, as it's INCREDIBLY disruptive and hard to move all that fiber, etc.
So, like the parent said, 'it depends', and make sure you are planning for realistic growth over 4-5 year period (at least)...
Actually, SIP is 'Session Initiation Protocol', as specified in RFC 3621 (http://www.ietf.org/rfc/rfc3261.txt)
Why do distributions and such on the live data set? Stream through this system at highspeed, and drop the data onto a datawarehouse, who's *entire purpose in life* is to do historical crap.
Well duh, what did you think the 'battery backup' on the RAID card was for??
You mean 'look good AS a coffee table'
That just means you aren't hardcore.
And don't lie, nobody here has a 'girlfriend'.
Computers aren't really being used heavily as 'teachers', or even 'teaching tools' directly involving students. I work for a mid/large district (~50K kids), and I'd say 90% of our computer usage is either electronic testing of classroom taught material (for things like state standardized tests, or district analytical tests), communication between teachers/staff, or administrative/statistical analysis work - grade averaging, scheduling, inventory, hr/finance, etc.
We have a few special-needs kids who have 'computer teachers' that were paid for by big-ticket grant items, but most of our desktop PCs are used for email and data analysis, not 'teaching' the kids.
It's helpful to find out that every kid at one school missed a specfic question on a standardized test, as you can then look at the curriculum that school used and possibly identify a flaw. Things like that are the REAL use for computers in education.
Still in college are we?
Is that 200 years with 6 significant digits?
Novell uses tomcat extensively, and I'm sure would offer you a support contract.