Virtual machines also have virtual screens that are independent of each other. You can, for example, have a 800x600 window right next to a 1024x768 window. Depending on how you have it configured, toggling between full screen sessions of the VM will either re-size the screen or play inside a portion of the existing screen. It's still virtual video, however, so there's no conflict.
For printers you can either set up a print server or the printer gets attached to a particular OS instance.
This can be a deadly trap.. We can give more weight to people within their field of expertise -- and this appears to be within the scope of Scheiner's domain -- but "celebrity endorsements" mean nothing for stuff outside their areas. I've seen so many cult-of-personalities pop up with the disciples attributing godlike omniscience to their idol so gotta speak up on this one.
Works great on FC4 host. So far I've tested a Win2K image, Fedora Core 4 guest, Solaris 9. Images were created on VMWare Workstation for Windows from the the full version from my work. It also seems a heckuva lot faster than the other version I'm running.
I don't watch much TV; most weeks it's less than 2 hrs. I enjoy Battlestar Galactica but shuffling my week around the TV schedule (or even shuffling it around time to be at home to watch a recorded version) is not convenient. If I could catch it on an iPod or laptop then I'd watch it... and I like the show enough that I'd fork out $2 per episode. Sounds like Apple has a solution for me.
I tutored math (calc, algebra, stats) up until about five years ago. It was worse than when I tutored in college some ten years ago. One of the sadder stories was trying to show an 'A' student how to do arithmetic. He got out of high school with a good GPA but couldn't multiply decimals.
The problem goes a lot further than bad teachers, of which there are many. All the politicians do their yearly vote-grubbing by promising to improve education. In Florida, the current governor got elected with lots of education promises but now is saying that class size doesn't matter and small class sizes are not needed. We had the Lottery put in with assurances that dollars from the Lottery wouldn't replace other funds. Guess what? A few years later, lots of money was *stolen* from education to fund other pork barrel projects. We spend hundreds of millions building stadiums but scoff at putting more money into the school system. Developers are allowed to build million dollar (the Florida real estate market is booming) housing projects with government tax concessions yet are not forced to fund schools in the new developments?
Why? I think a big reason is that kids can't vote. Plus it probably makes it easier to keep the established government in power if the people can't do math and see through the bullshit.
It's a pretty cool technology. We're running multiple AIX 5.3 partitions on IBM pSeries boxes. Setup of the systems are pretty easy and allocating memory/CPUs is straightforward. The only concern is that the overhead increases substantially with the number of LPARs.
The only problem I have with pSeries linux is that it somewhat negates the cost advantage of Linux on Intel. Well, make that obliterates the cost advantage. IBMs AIX is free with the hardware. Linux is licensed per instance. So it's cheaper to run AIX *on pSeries* when you have many instances.
Reminds me of the D&D studies done while I was in college... D&D players were more likely to do marijuana, more likely to commit suicide, etc.. No different from the high correlation between shoe size and the ability to do math problems in Kindergarten to 5th graders.
Having done some cleanup work after Andrew...nah, that was completely different...
To all those folks having Mad Max and Postman and Tank Girl apocalyptic delusions, beware. Louisiana is hot and humid. It's not, as a bunch of posters seem to think, going to be a camping trip. It won't be some Fallout II New Reno environment with ammo and hidden loot in destroyed buildings. Supplies that are useful on a camping trip may not be quite as useful in a flooded city.
Bring a towel.
No seriously. Bring those moist towels (e.g., baby wipes), bring gloves, sturdy shoes, lots of clean socks, clean underwear, talcum powder, antiseptic, bleach, toilet paper, soap, sunblock.
Bring a towel. They can be moistened and placed on your head. This really helps to keep cool. No kidding.
Bring some hard candies, breath mints, antiseptic (iodine is good).
Disposable cameras, latex gloves, breathing mask and antiseptic.
Bring some sort of anti-histamine and allergy medication, ibuprofen, and antiseptic.
Here's this for a weird hobby... I collect LED flashlights... A company called Coast has a bunch of great lights, all fairly expensive considering the tech. They're much brighter and better than traditional lights. Great suggestion.
My office (well, cubicle) is set up the same way. The laptop goes onto a docking station attached to a couple largish LCD monitors. The laptop has a browser, Java, text editor and most importantly, an SSH client. In other words, the laptop is just a glorified terminal since the real work goes on in the servers and a fixed desktop machine. I access home email via a web page. Work email is either replicated or accessed via a webpage or local client.
At home I have multiple machines running different applications that are accessed either via X-over-SSH or VNC. At 100Mbit, remote applications appear to be running locally and are even accessed via the same desktop menu using VNC passwd files. Having the laptop is really convenient because I can roam the house and do anything I need, including watch video.
Much of the present climate is very much anti-science. In recent times I've been almost ridiculed for "believing" in DNA. One woman sneered and called me an "academic".
I think the problem is that science is being made into a "belief system". I've heard so many times, "Science is just like religion" or "Science is just another paradigm". Clearly it's not. If I were to say that the Bible instructs the faithful to wear purple polka-dotted pantaloons on Wednesdays I'd be dismissed as a crackpot. Yet so many in the religious community can claim that science is a "belief system" and misrepresent aspects of scientific theory (evolution, the Big Bang) and get away with it. They have conned people into believing that science is something more than a process and by doing so, forced people to choose between God and science.
Sure it's noble to seek knowledge, but ultimately it's just a process. One might as well call arithmetic a belief system. "You're adding! You godless heathen!!!"
A politician once campaigned that a few jobs were a lot more important than some minor species living in a field... This seems so damn funny in light of this news. If it turns out that crocodiles can provide the next penicillin-like leap and a years later the last crocodiles die off, that politician will have some fun.
The last movie I saw in the theatre was probably LOTR_ROTK. There were a lot of noisy kids... I probably heard people blurt out "Mr. Anderson" twenty times whenever Elrond popped up on the screen. It got old after the first time. Movies are still cheap entertainment for kids, and they long ago stopped trying to attract adults (at least in my part of town).
I'm not so sure that your original message was all that off the mark.
The attack is really against Postscript from what I can see. It is the same document, just relying on differences in the document name (it appears) to generate the different pages. In fact, it's not so unusual for unix scripts to behave differently based on how it was called. Same binary, different behaviour.
The article premise is wrong. It is not a collision attack, just a Postscript attack. Adding a single byte will change the md5sum, so that's still safe.
Not libre, but also check out MuPAD. I use it quite often in addition to Octave when I tutor. MuPad and Octave do 100% of the mathematics required for Calc 1-3 and with some work, did everything I needed for other analysis courses. I can't speak to Matlab since I'm not a user, but the free alternatives, at least on the beginning calculus levels, are as easy to use as Mathematica. The graphical output is not as refined, but with Gnuplot and some (shameless plug) resourcefullness can do much of the same things... (well, if you speak TeX:D ).
It's in my interest to keep the mainstream away from Linux.
Wow, what an interesting thought. There's a certain appeal in having a curses based interface spewing filesystem and CPU metrics in a green-screen looking xterm window. Like lost of geeks I enjoy the blinkenlights....
But something else matters...
I enjoy Linux for many things. I started with it entirely for practical reasons (had to monitor a bunch of remote sites and needed a scriptable platform). Over the years practicality is still the main raison d'etre but something else matter... Namely, I sincerely believe in the democratizing force of Linux. For years computing power has been in the hands of a select few who had the luck to work or go to school where a Unix machine existed. Now I'm not saying that a Windows or Macintosh machine is not computing power, just that these systems are consumer boxes *WITHOUT* compilers.
Linux changes all this. People who want to learn mathematics can experiment with the Newton-Raphson examples in their texts, they can create mail gateways and Internet sites, they can access native language versions of the operating system. Their main investment is time. No money, no license fees, maybe just an ancient '486 and they can do many of the things the big boxes can, though slower.
The reason I'm so passionate about Linux is that it's for people like me, and for people unlike me. And though there be legions of unwashed masses that will never *get it*, there are enough children of very moderate means living in those same villages that will get it. And they'll likely use Linux. If I have to give up the relative elitism of being a Linux user to allow these children to escape some eternal cycle of poverty, or even to just allow one kid to play nethack, then it's all worth it.
The Discoverers, Daniel Boorstin Beyond Numeracy, John Allen Paulos Heart of Darkness, Joseph Conrad The Mathematical Experience, Davis & Hirsch Mrs. Frisby and the Rats of NIMH, Robert C Obrien Lord of Light, Roger Zelazny The Character of Physical Law, Feynman The Art of War, Sun Tzu Alice in Wonderland, Carroll 20 Love Songs and a Song of Despair, Pablo Neruda
No particular theme... Just books that I've re-read and re-read over the years.
Yeah, that one had me scratching my head. I have tons of MP3s that I moved over via the Import Folder menu. Sounds like another case of someone forming an opinion without even trying out the product. Not that anyone here would do anything like that:P
I live in sunny S. Florida... Last year I had a phone interview that went something like:
Interviewer: So tell me what you know about mail?
Me: Well, I've configured dozens of mail servers. I've configured everything from the DNS down to the spam filtering software.
Interviewer: Spam filtering software?
Me: All aspects. I can configure software such as SpamAssassin and of course hard Postfix and Sendmail against lots of spam attacks. Depending on what the customer wants, I can set it up to be super aggressive or not.
Interviewer: So you don't agree with the practice?
Me: Man, I hate spam. These people don't realize the headaches that it can cause. I wish they'd get some fungus that science hasn't heard about yet.
[snip]
Interviewer: So any questions that you'd like to ask us?
Me: There are a couple. Things such as salary and of course the job description. The headhunter was a little vague.
Interviewer: We're an, umm, direct marketing association.
Me: Direct marketing?
Interviewer: Yeah, we send email to people who have expressed an interest in our products.
Me: [light beginning to flicker on] So how do you know they're interested?
Interviewer: They have visited related sites...
The interview pretty went south from there. He finally told me that I perhaps wasn't the best candidate for the position. I agreed.
I've got bunches of PCs in my office. Most of them have separate video cards, but recently I picked up a bunch of AMD 2500+ boards with built in video, sound, ethernet, USB, etc.. for under $40 each shipped. They've been running for six weeks straight in a hot closet without a hiccup. They're not the fastest machines, but if you don't need high-end graphics or sound, they're a good deal. Total cost of each machine was just a little over $230.
I've had good luck with PC Chips, Asus, ECS boards. I've had some bad experiences with Biostar boards, but others swear by them.
Having the RAM used is fine. The Linux kernel will use all available memory for file buffers and cache but it's immediately available to applications that need it. This is better than having the memory sit around and doing nothing.
You're not kidding. We'd put cardboard on the windows to block out the light, move the dining room table over a few feet, and have just enough light to see the dice rools. This was a slight improvement over the first game I ever played -- in a library with the occasional evil stare and shush from the librarians.
D&D was a whole lotta fun... but I'll admit that the most engrossing "experience" was with a Call of Cthulhu module. We'd entered the study of the obligatory missing scientist's house, browsed his notes, found the secret passageway (always measure the inside and outside dimensions of suspicious houses). While in the passageway we heard scurrying noises. The noises got louder. We moved into a smaller room. Eh, what's that crunching noise underfoot? Uh oh, bugs. Big bugs. Then the lights went out.
Wow, I remember D&D being an almost pure mind-game. This was back in 1985-90. There were some really good DMs, some who went on to be writers and at least one who went into film production. The most we did was darken the room and clear a spot to throw dice. No lead figurines, no physical maps, just dice and a character sheet. Maybe I'm just being an old fogey, but I think I'd prefer the old way than all these props.
Slashdot Mirror
Been done... The DoS is called Java.
(Ducking and running)
Just kidding. Java is my friend.
Virtual machines also have virtual screens that are independent of each other. You can, for example, have a 800x600 window right next to a 1024x768 window. Depending on how you have it configured, toggling between full screen sessions of the VM will either re-size the screen or play inside a portion of the existing screen. It's still virtual video, however, so there's no conflict.
For printers you can either set up a print server or the printer gets attached to a particular OS instance.
This can be a deadly trap.. We can give more weight to people within their field of expertise -- and this appears to be within the scope of Scheiner's domain -- but "celebrity endorsements" mean nothing for stuff outside their areas. I've seen so many cult-of-personalities pop up with the disciples attributing godlike omniscience to their idol so gotta speak up on this one.
Works great on FC4 host. So far I've tested a Win2K image, Fedora Core 4 guest, Solaris 9. Images were created on VMWare Workstation for Windows from the the full version from my work. It also seems a heckuva lot faster than the other version I'm running.
I don't watch much TV; most weeks it's less than 2 hrs. I enjoy Battlestar Galactica but shuffling my week around the TV schedule (or even shuffling it around time to be at home to watch a recorded version) is not convenient. If I could catch it on an iPod or laptop then I'd watch it... and I like the show enough that I'd fork out $2 per episode. Sounds like Apple has a solution for me.
I tutored math (calc, algebra, stats) up until about five years ago. It was worse than when I tutored in college some ten years ago. One of the sadder stories was trying to show an 'A' student how to do arithmetic. He got out of high school with a good GPA but couldn't multiply decimals.
The problem goes a lot further than bad teachers, of which there are many. All the politicians do their yearly vote-grubbing by promising to improve education. In Florida, the current governor got elected with lots of education promises but now is saying that class size doesn't matter and small class sizes are not needed. We had the Lottery put in with assurances that dollars from the Lottery wouldn't replace other funds. Guess what? A few years later, lots of money was *stolen* from education to fund other pork barrel projects. We spend hundreds of millions building stadiums but scoff at putting more money into the school system. Developers are allowed to build million dollar (the Florida real estate market is booming) housing projects with government tax concessions yet are not forced to fund schools in the new developments?
Why? I think a big reason is that kids can't vote. Plus it probably makes it easier to keep the established government in power if the people can't do math and see through the bullshit.
Politicians suck. All politicians. Both parties.
It's a pretty cool technology. We're running multiple AIX 5.3 partitions on IBM pSeries boxes. Setup of the systems are pretty easy and allocating memory/CPUs is straightforward. The only concern is that the overhead increases substantially with the number of LPARs.
The only problem I have with pSeries linux is that it somewhat negates the cost advantage of Linux on Intel. Well, make that obliterates the cost advantage. IBMs AIX is free with the hardware. Linux is licensed per instance. So it's cheaper to run AIX *on pSeries* when you have many instances.
Reminds me of the D&D studies done while I was in college... D&D players were more likely to do marijuana, more likely to commit suicide, etc.. No different from the high correlation between shoe size and the ability to do math problems in Kindergarten to 5th graders.
Having done some cleanup work after Andrew...nah, that was completely different...
To all those folks having Mad Max and Postman and Tank Girl apocalyptic delusions, beware. Louisiana is hot and humid. It's not, as a bunch of posters seem to think, going to be a camping trip. It won't be some Fallout II New Reno environment with ammo and hidden loot in destroyed buildings. Supplies that are useful on a camping trip may not be quite as useful in a flooded city.
Bring a towel.
No seriously. Bring those moist towels (e.g., baby wipes), bring gloves, sturdy shoes, lots of clean socks, clean underwear, talcum powder, antiseptic, bleach, toilet paper, soap, sunblock.
Bring a towel. They can be moistened and placed on your head. This really helps to keep cool. No kidding.
Bring some hard candies, breath mints, antiseptic (iodine is good).
Disposable cameras, latex gloves, breathing mask and antiseptic.
Bring some sort of anti-histamine and allergy medication, ibuprofen, and antiseptic.
GPS? Walkie talkies for the group.
Here's this for a weird hobby... I collect LED flashlights... A company called Coast has a bunch of great lights, all fairly expensive considering the tech. They're much brighter and better than traditional lights. Great suggestion.
My office (well, cubicle) is set up the same way. The laptop goes onto a docking station attached to a couple largish LCD monitors. The laptop has a browser, Java, text editor and most importantly, an SSH client. In other words, the laptop is just a glorified terminal since the real work goes on in the servers and a fixed desktop machine. I access home email via a web page. Work email is either replicated or accessed via a webpage or local client.
At home I have multiple machines running different applications that are accessed either via X-over-SSH or VNC. At 100Mbit, remote applications appear to be running locally and are even accessed via the same desktop menu using VNC passwd files. Having the laptop is really convenient because I can roam the house and do anything I need, including watch video.
Yes, you are an anomaly.
Much of the present climate is very much anti-science. In recent times I've been almost ridiculed for "believing" in DNA. One woman sneered and called me an "academic".
I think the problem is that science is being made into a "belief system". I've heard so many times, "Science is just like religion" or "Science is just another paradigm". Clearly it's not. If I were to say that the Bible instructs the faithful to wear purple polka-dotted pantaloons on Wednesdays I'd be dismissed as a crackpot. Yet so many in the religious community can claim that science is a "belief system" and misrepresent aspects of scientific theory (evolution, the Big Bang) and get away with it. They have conned people into believing that science is something more than a process and by doing so, forced people to choose between God and science.
Sure it's noble to seek knowledge, but ultimately it's just a process. One might as well call arithmetic a belief system. "You're adding! You godless heathen!!!"
A politician once campaigned that a few jobs were a lot more important than some minor species living in a field... This seems so damn funny in light of this news. If it turns out that crocodiles can provide the next penicillin-like leap and a years later the last crocodiles die off, that politician will have some fun.
http://www.fws.gov/endangered/i/C0U.html
The last movie I saw in the theatre was probably LOTR_ROTK. There were a lot of noisy kids... I probably heard people blurt out "Mr. Anderson" twenty times whenever Elrond popped up on the screen. It got old after the first time. Movies are still cheap entertainment for kids, and they long ago stopped trying to attract adults (at least in my part of town).
I'm not so sure that your original message was all that off the mark.
The attack is really against Postscript from what I can see. It is the same document, just relying on differences in the document name (it appears) to generate the different pages. In fact, it's not so unusual for unix scripts to behave differently based on how it was called. Same binary, different behaviour.
The article premise is wrong. It is not a collision attack, just a Postscript attack. Adding a single byte will change the md5sum, so that's still safe.
Shameless plug:
http://www.digitalhermit.com/linux/ray_tracing
The link is to a presentation I gave to my LUG on Linux Ray Tracing. It's very basic, but (hopefully) is a good start.
Not libre, but also check out MuPAD. I use it quite often in addition to Octave when I tutor. MuPad and Octave do 100% of the mathematics required for Calc 1-3 and with some work, did everything I needed for other analysis courses. I can't speak to Matlab since I'm not a user, but the free alternatives, at least on the beginning calculus levels, are as easy to use as Mathematica. The graphical output is not as refined, but with Gnuplot and some (shameless plug) resourcefullness can do much of the same things... (well, if you speak TeX :D ).
It's in my interest to keep the mainstream away from Linux.
Wow, what an interesting thought. There's a certain appeal in having a curses based interface spewing filesystem and CPU metrics in a green-screen looking xterm window. Like lost of geeks I enjoy the blinkenlights....
But something else matters...
I enjoy Linux for many things. I started with it entirely for practical reasons (had to monitor a bunch of remote sites and needed a scriptable platform). Over the years practicality is still the main raison d'etre but something else matter... Namely, I sincerely believe in the democratizing force of Linux. For years computing power has been in the hands of a select few who had the luck to work or go to school where a Unix machine existed. Now I'm not saying that a Windows or Macintosh machine is not computing power, just that these systems are consumer boxes *WITHOUT* compilers.
Linux changes all this. People who want to learn mathematics can experiment with the Newton-Raphson examples in their texts, they can create mail gateways and Internet sites, they can access native language versions of the operating system. Their main investment is time. No money, no license fees, maybe just an ancient '486 and they can do many of the things the big boxes can, though slower.
The reason I'm so passionate about Linux is that it's for people like me, and for people unlike me. And though there be legions of unwashed masses that will never *get it*, there are enough children of very moderate means living in those same villages that will get it. And they'll likely use Linux. If I have to give up the relative elitism of being a Linux user to allow these children to escape some eternal cycle of poverty, or even to just allow one kid to play nethack, then it's all worth it.
Some of my recommendations:
The Discoverers, Daniel Boorstin
Beyond Numeracy, John Allen Paulos
Heart of Darkness, Joseph Conrad
The Mathematical Experience, Davis & Hirsch
Mrs. Frisby and the Rats of NIMH, Robert C Obrien
Lord of Light, Roger Zelazny
The Character of Physical Law, Feynman
The Art of War, Sun Tzu
Alice in Wonderland, Carroll
20 Love Songs and a Song of Despair, Pablo Neruda
No particular theme... Just books that I've re-read and re-read over the years.
Yeah, that one had me scratching my head. I have tons of MP3s that I moved over via the Import Folder menu. Sounds like another case of someone forming an opinion without even trying out the product. Not that anyone here would do anything like that :P
I live in sunny S. Florida... Last year I had a phone interview that went something like:
Interviewer: So tell me what you know about mail?
Me: Well, I've configured dozens of mail servers. I've configured everything from the DNS down to the spam filtering software.
Interviewer: Spam filtering software?
Me: All aspects. I can configure software such as SpamAssassin and of course hard Postfix and Sendmail against lots of spam attacks. Depending on what the customer wants, I can set it up to be super aggressive or not.
Interviewer: So you don't agree with the practice?
Me: Man, I hate spam. These people don't realize the headaches that it can cause. I wish they'd get some fungus that science hasn't heard about yet.
[snip]
Interviewer: So any questions that you'd like to ask us?
Me: There are a couple. Things such as salary and of course the job description. The headhunter was a little vague.
Interviewer: We're an, umm, direct marketing association.
Me: Direct marketing?
Interviewer: Yeah, we send email to people who have expressed an interest in our products.
Me: [light beginning to flicker on] So how do you know they're interested?
Interviewer: They have visited related sites...
The interview pretty went south from there. He finally told me that I perhaps wasn't the best candidate for the position. I agreed.
I've got bunches of PCs in my office. Most of them have separate video cards, but recently I picked up a bunch of AMD 2500+ boards with built in video, sound, ethernet, USB, etc.. for under $40 each shipped. They've been running for six weeks straight in a hot closet without a hiccup. They're not the fastest machines, but if you don't need high-end graphics or sound, they're a good deal. Total cost of each machine was just a little over $230.
I've had good luck with PC Chips, Asus, ECS boards. I've had some bad experiences with Biostar boards, but others swear by them.
Having the RAM used is fine. The Linux kernel will use all available memory for file buffers and cache but it's immediately available to applications that need it. This is better than having the memory sit around and doing nothing.
You're not kidding. We'd put cardboard on the windows to block out the light, move the dining room table over a few feet, and have just enough light to see the dice rools. This was a slight improvement over the first game I ever played -- in a library with the occasional evil stare and shush from the librarians.
D&D was a whole lotta fun... but I'll admit that the most engrossing "experience" was with a Call of Cthulhu module. We'd entered the study of the obligatory missing scientist's house, browsed his notes, found the secret passageway (always measure the inside and outside dimensions of suspicious houses). While in the passageway we heard scurrying noises. The noises got louder. We moved into a smaller room. Eh, what's that crunching noise underfoot? Uh oh, bugs. Big bugs. Then the lights went out.
Wow, I remember D&D being an almost pure mind-game. This was back in 1985-90. There were some really good DMs, some who went on to be writers and at least one who went into film production. The most we did was darken the room and clear a spot to throw dice. No lead figurines, no physical maps, just dice and a character sheet. Maybe I'm just being an old fogey, but I think I'd prefer the old way than all these props.