Let's say you receive an OpenPGP (PGP, GPG) encrypted email which requires your public key to decrypt. Once your key expires you're going to switch to a new key. Even if you're good at keeping old legacy expired keys around, eventually the message will become unreadable (forgot passphrase etc.) I don't know where I'm going with this mind you
Google is more than a search engine, but how does it make money? Mostly by paid search results
Google may be just a search engine right now but it on the brink of becoming the world's biggest ever data mining tool, offering marketers and governments incredible volumes of information. What can be done with the information Google gets from the public? Analysis and anticipation of product demand, habits, social trends, etc. In marketing, information is power and Google has the most information of all of them. They are "worth" way more than a few billion $.
From my experience (mind you, I've been making money in the 2000 marketers while most other people have lost) analysts, experts, advisors are generally full of $hit. The great majority of these people have a reason to look out for their own interests, and there is actually motivation to lead others down the wrong path. A lot of what you hear on CNBC etc is just pure garbage.
So whether an analyst tells me that Google's IPO is overpriced, or the warnings are overblown (as this article claims), I pretty much take any of that advice with a whopping scoop of salt and do what I feel is best, given my knowledge in the area.
White LEDs are less efficient than fluorescent lights. Colored LEDs are quite efficient.
Sorry, you are right. White LEDs are currently not as efficient in lumens/watt than the higher efficiency fluroescent lighting systems. Perhaps that high % efficiency figure in my head was for red LEDs or something.
There are lots of interesting things that could be done to produce more ecologically friendly buildings.
The first is simply to make more efficient use of natural light! I stayed for a week in a new residence building at The University of East Anglia (Norwich, UK) and the building really intrigued me. It had hollow lighting columns running up to the top of the building, despite being a rather tall apartment. So there was natural light from the top reaching all floors. That definitely saves lighting costs.
So with approaches like that (using natural light as much as you can) coupled with clear solar panels, you could both use natural lighting and collect power for electrical lighting later on. Improve actual lighting with high-efficiency (85% +) white LEDs (last forever) or high efficiency fluorescents, and you've got one amazing power-efficient building.
The problem is that these supplies -- solar panels, white LEDs have large initial costs. As these costs come down we'll see lots of nice new interiors. I can only expect such things to become more common as people actually realized they're screwed for cheap power.
Your holier-than-thou attitude is realy condescending
I didn't mean to be condescending, I'm just suggesting that music might be not as worth buying as it used to be. Just because marketers force feed template-generated pop music down kids' throats every chance they get, and there's a knee jerk reaction from the 'consumers' that looks like "buying interest"... perhaps in fact the audience tires of the product after a single purchase. Because I really don't think kids are as stupid as marketers hope they are, and there are way more entertaining things to do with an afternoon then listen to Unremarkable Band XYZ.
My business faces ruin. CD sales have dropped through the floor.
Not to knock your business (I'm a small business owner myself), but maybe the product you are selling, this modern family-friendly music, is just not as good a product as music used to be? I know I can't stand listening to any music on commercial radio, so I wouldn't buy any of it.
When a commercial industry lobby can influence the curriculum, where the system is already barely covering the basics and government is ignoring the pleas of academics to invest more in proper education... makes you realise who owns you doesn't it?
Gotta eduh-kate them early on, before the little consumers grow up! It's only sensible!
I'm hoping the kids think this is bullshit, and it might trigger the opposite response. It deeply saddens me that the industry feels so strongly that people are just consumers of products and not that there is an inherent right to fair-use, sharing or collective ownership/stakeholders. Sharing something you own does not make you a thief or a commie -- it's a behaviour that is blessed by the spirit of copyright law, that of fair use and public stakeholdership.
Seriously, I think so too. I visited finance.yahoo.com a lot and when the site became unresponsive I become suspicious, so I checked out slashdot and there was the prominent link right to their chart generator.
Silly slashdot! Why not link just link directly to NYSE instead?
I think OS X is really going places. If I could afford a laptop, I would get an Apple. If you look at what Apple is selling, I think it's a very attractive mix for professionals in IT. I'm not just talking laptops here.
The platform is computationally powerful. This is why the multimedia people adore Macs, but for the same reasons the Engineering/IT community is showing more interest. Our university's new G5 lab blows away all other equipment we use for CAD and modeling.
The computers function well. The interface is flexible and powerful; the system stays together, rather than falling apart.
OS X, based on BSD, is pretty much a *NIX environment. This is the important point that people still haven't caught on to! You can compile and use all kinds of Linux/UNIX software. You have all the basic tools. The UNIX basis brings a new flexibility.
Macs are pervasive enough that any software you would want to use is available. Because of OS X (the UNIX direction), much more software is rapidly becoming available too.
If someone actually thought that Lycos was worth $12.5 billion, you have a pretty good idea how messed up people were in the 90s, and why the bubble burst. A bunch of 'companies' creating no products, acting as nothing more than advertising and marketing information hubs, fooled millions of investors. Bravo, you sirs were truly kings.
This is an insurance company who has created a new "product" (OS insurance) and is looking to drum up business (by spreading fear). Nothing to see here, move along.
Kidding aside, yeah there is money to be made out there. I do part time work as a consultant and am able to make some cash on the side coding for Linux. But I really think this has much more to do with the growing demand for *NIX people as a whole, as the industry is starting to discover the wonderful fact that properly written UNIX-y software (e.g. in POSIX C) will work beautifully on Linux, BSD, Mac OS X, Solaris,... etc etc.
A hear from a friend of mine, who is also a BSD developer, that many improvements to jails are on the way in 5.3 (A reminder -- jails allow multiple virtual servers to exist within one system, allowing several customers to each have their own root). Some aspects of jails that have been improved:
More efficient resource usage among processes in different jails
Superior isolation between jails
Raw sockets etc. so you can finally ping and traceroute
Check your own CDRs for rot. You can use the DriveSpeed utility that comes with Nero. In one of the menus there's a 'ScanDisk' option which can show you what percent of the disk is damaged (these are not critical errors but degrading spots). Fresh discs I burn have 0 to 5% damage, and several year old discs I scan show 10% to 50% damage! I have not yet encountered a disc that is unreadable due to errors, luckily.
LVM is easier to set up then RAID (although it doesn't have the same redundnacy/recovery features as RAID). Think of it as chaining together several disks, throwing out the conventional notion of partioning. It makes it convenient for dealing with large disks, and several of them! And EIDE storage is cheap...
One of the most important things you can do for email (not just applied to phishing, but also for establishing the legitimacy of identities) is to learn how to read email headers. If you're unsure about an email, check the headers -- the vital part is the IP address within [square] or (curly) brackets on the topmost Received: lines. You can trust top Received lines, but ones after your ISP's hop can be forged.
The host name of the connecting mail peer will usually appear beside the [IP] address. Beware of forgeable host names. The best check, by far, is to do a WHOIS lookup on the IP that sent you the email and see if it makes sense.
e.g. VISA, Paypal, real banks, etc. will never deliver mail through a cable customer IP! Expect the IP to belong to the company. It's really simple to check, and unforgeable.
Hans Reiser has some interesting ideas about the role of a modern file system. Here's a recent USENET post describing some of the immediately visible features of reiserfs v3. Some people have said that there was corruption in the past, but I think there are no longer any problems in recent 2.4 kernels. Namesys is now developing Reiser4, which appears to be more flexible (still needs time to stabilize though). If I had to put down my money on a future filesystem though, it would be ReiserFS.
*NIX is modular in that you can pass output from one command to another via pipes
Definitely, and I think what escapes modern comp sci people is the incredible flexibility of being able to use several simple, distinct programs together to achieve a broader processing goal. Data flow between processes achieves the best separation possible, allows for the ultimate 'compatibility' (inter-process communication) and leaves performance monitoring/control to the OS. In the long term, the UNIX model sounds like a winner to me.
i have never hurd of this C language, is it like C# or ASP ? I think it is very complicated and doesnt work with modern OOP models. my comp sci teacher says it has acadehmic value but the 1970s are over the language porbably doesnt have use in modern computers?
I'm an Engineer, not a doctor, but I have recently been doing research into an unrelated type of surgery (wisdom teeth) and I think I can still suggest some useful advice to anyone considering any kind of elective surgery:
When dealing with a for-profit surgery centre, realize that the information you receive may well be skewed, fraudulant, or manipulative. These places are trying to make money.
Money comes and goes, but you only get one body. Don't cut corners when your health is at stake.
Is your surgery necessary? It's very important to balance risks against benefits. Is your current situation manageable? Do you actually need surgery, or is marketing getting the better of you? There is nothing more disastrous than severe complications resulting from unnecessary surgery. There is inherent risk with all types of surgery and you must not take this lightly. If things go wrong, it's you that suffers.
Surgeon skills vary widely. Practice makes perfect, so try to find a surgeon that has the most experience. There is a reason these people are paid well -- they're good at what they do, and they deserve good pay.
Do your own research. Remember, you have to look out for yourself. Research the people doing the surgery. Research the surgical procedure itself. Make sure that appropriate protocols are being adhered to. Make sure that safety measures are being observed. People make mistakes; you have to watch out for yourself.
You named one component. ActiveX is a subset of the IE component. Other than IE, do you have any other insecure components to mention?
Yes, I can name other insecure components. How about USER32/GDI32 and its messaging design that allows privilege escalation/leaking, demonstrated by the very real Shatter Attack. This demonstrates fundamental flaws in the Win32 messaging design, which can not be fixed without radical changes to Windows.
Note that I'm not arguing by talking about insecure/vulnerable libraries, like MS crypto or RPC which has led to dozens of major exploits. Equivalent vulnerabilities in portmapper or OpenSSL would lead to similar problems on UNIX. Rather I'm talking about fundamental design flaws that allow privilege leakage -- (1) IE integration (a huge one), (2) Win32 API messaging,... any more?
if eavesdropping on the encrypted transmission destroys it, couldnt the eavesdropper do so on purpose everytime, effectively jamming all transmission?
Definitely. The main problem with practical quantum crypto communications is this issue of information loss due to noise or tampering. If you could send photons over a lossless link (impossibility) then you guarantee entirely protected communications, or easy detection of tampering/eavesdropping.
But since real transmission lines (even the best optic fibers) will always lose photons, you have to start adding on complicated processing to deal with the losses. Were the photons lost due to natural causes, or is someone eavesdropping? And if data is duplicated to account for losses, the system can possibly be tricked by an attacker into revealing information. This is a delicate subject and a great cause of complication in the field!
The communications can also be jammed of course but the focus of the technology is delivering a secure link.
Slashdot Mirror
Let's say you receive an OpenPGP (PGP, GPG) encrypted email which requires your public key to decrypt. Once your key expires you're going to switch to a new key. Even if you're good at keeping old legacy expired keys around, eventually the message will become unreadable (forgot passphrase etc.) I don't know where I'm going with this mind you
From my experience (mind you, I've been making money in the 2000 marketers while most other people have lost) analysts, experts, advisors are generally full of $hit. The great majority of these people have a reason to look out for their own interests, and there is actually motivation to lead others down the wrong path. A lot of what you hear on CNBC etc is just pure garbage.
So whether an analyst tells me that Google's IPO is overpriced, or the warnings are overblown (as this article claims), I pretty much take any of that advice with a whopping scoop of salt and do what I feel is best, given my knowledge in the area.
There are lots of interesting things that could be done to produce more ecologically friendly buildings.
The first is simply to make more efficient use of natural light! I stayed for a week in a new residence building at The University of East Anglia (Norwich, UK) and the building really intrigued me. It had hollow lighting columns running up to the top of the building, despite being a rather tall apartment. So there was natural light from the top reaching all floors. That definitely saves lighting costs.
So with approaches like that (using natural light as much as you can) coupled with clear solar panels, you could both use natural lighting and collect power for electrical lighting later on. Improve actual lighting with high-efficiency (85% +) white LEDs (last forever) or high efficiency fluorescents, and you've got one amazing power-efficient building.
The problem is that these supplies -- solar panels, white LEDs have large initial costs. As these costs come down we'll see lots of nice new interiors. I can only expect such things to become more common as people actually realized they're screwed for cheap power.
When a commercial industry lobby can influence the curriculum, where the system is already barely covering the basics and government is ignoring the pleas of academics to invest more in proper education... makes you realise who owns you doesn't it?
Gotta eduh-kate them early on, before the little consumers grow up! It's only sensible!
I'm hoping the kids think this is bullshit, and it might trigger the opposite response. It deeply saddens me that the industry feels so strongly that people are just consumers of products and not that there is an inherent right to fair-use, sharing or collective ownership/stakeholders. Sharing something you own does not make you a thief or a commie -- it's a behaviour that is blessed by the spirit of copyright law, that of fair use and public stakeholdership.
Seriously, I think so too. I visited finance.yahoo.com a lot and when the site became unresponsive I become suspicious, so I checked out slashdot and there was the prominent link right to their chart generator.
Silly slashdot! Why not link just link directly to NYSE instead?
If someone actually thought that Lycos was worth $12.5 billion, you have a pretty good idea how messed up people were in the 90s, and why the bubble burst. A bunch of 'companies' creating no products, acting as nothing more than advertising and marketing information hubs, fooled millions of investors. Bravo, you sirs were truly kings.
This is an insurance company who has created a new "product" (OS insurance) and is looking to drum up business (by spreading fear). Nothing to see here, move along.
Surfing for pr0n in the dark is not a job :)
... etc etc.
Kidding aside, yeah there is money to be made out there. I do part time work as a consultant and am able to make some cash on the side coding for Linux. But I really think this has much more to do with the growing demand for *NIX people as a whole, as the industry is starting to discover the wonderful fact that properly written UNIX-y software (e.g. in POSIX C) will work beautifully on Linux, BSD, Mac OS X, Solaris,
Check your own CDRs for rot. You can use the DriveSpeed utility that comes with Nero. In one of the menus there's a 'ScanDisk' option which can show you what percent of the disk is damaged (these are not critical errors but degrading spots). Fresh discs I burn have 0 to 5% damage, and several year old discs I scan show 10% to 50% damage! I have not yet encountered a disc that is unreadable due to errors, luckily.
LVM is easier to set up then RAID (although it doesn't have the same redundnacy/recovery features as RAID). Think of it as chaining together several disks, throwing out the conventional notion of partioning. It makes it convenient for dealing with large disks, and several of them! And EIDE storage is cheap...
One of the most important things you can do for email (not just applied to phishing, but also for establishing the legitimacy of identities) is to learn how to read email headers. If you're unsure about an email, check the headers -- the vital part is the IP address within [square] or (curly) brackets on the topmost Received: lines. You can trust top Received lines, but ones after your ISP's hop can be forged.
The host name of the connecting mail peer will usually appear beside the [IP] address. Beware of forgeable host names. The best check, by far, is to do a WHOIS lookup on the IP that sent you the email and see if it makes sense.
e.g. VISA, Paypal, real banks, etc. will never deliver mail through a cable customer IP! Expect the IP to belong to the company. It's really simple to check, and unforgeable.
Hans Reiser has some interesting ideas about the role of a modern file system. Here's a recent USENET post describing some of the immediately visible features of reiserfs v3. Some people have said that there was corruption in the past, but I think there are no longer any problems in recent 2.4 kernels. Namesys is now developing Reiser4, which appears to be more flexible (still needs time to stabilize though). If I had to put down my money on a future filesystem though, it would be ReiserFS.
i have never hurd of this C language, is it like C# or ASP ? I think it is very complicated and doesnt work with modern OOP models. my comp sci teacher says it has acadehmic value but the 1970s are over the language porbably doesnt have use in modern computers?
Note that I'm not arguing by talking about insecure/vulnerable libraries, like MS crypto or RPC which has led to dozens of major exploits. Equivalent vulnerabilities in portmapper or OpenSSL would lead to similar problems on UNIX. Rather I'm talking about fundamental design flaws that allow privilege leakage -- (1) IE integration (a huge one), (2) Win32 API messaging,
But since real transmission lines (even the best optic fibers) will always lose photons, you have to start adding on complicated processing to deal with the losses. Were the photons lost due to natural causes, or is someone eavesdropping? And if data is duplicated to account for losses, the system can possibly be tricked by an attacker into revealing information. This is a delicate subject and a great cause of complication in the field!
The communications can also be jammed of course but the focus of the technology is delivering a secure link.