I just read a really cool article in August's issue of Scientific American. (Yes, I know, I'm a little behind. I've had other things on my mind :)
The general concept is that Sun Microsystems has packaged 250 servers into a standard shipping container. Add electricity, water (for cooling) and a high speed internet connection and you have an instant data center. "Project Blackbox" has seven terabytes of active memory and can support 10,000 users.
I found it particularly interesting because Sun is claiming that this is the next step towards fully distributed computing - one of the "future trends" Laura and I talked about at the end of our Flash/Flex presentation.
Monday, November 5, 2007
RE Leslie's Database problem
Hey Leslie -
I don't use Oracle but I have a possible suggestion about your problem ...
If it's the LONG/LONGRAW data type that's crashing your system, is it a field you really need to return in the code that's crashing? When I'm lazy, I just return the entire record when I only need a couple of fields.
dm
I don't use Oracle but I have a possible suggestion about your problem ...
If it's the LONG/LONGRAW data type that's crashing your system, is it a field you really need to return in the code that's crashing? When I'm lazy, I just return the entire record when I only need a couple of fields.
dm
Tuesday, October 30, 2007
Farenheit 451
I'm a huge Science Fiction fan. Laura's post mentioning (among many other things) Ray Bradbury's book recalls the (not a, the) time I won a trivia contest by knowing that paper spontaneously combusts at 451 degrees Fahrenheit. Just a bit of trivia, not everyone knows why the book is called that.
Sunday, October 28, 2007
How the Internet Works cross posting from Legal and Ethical Issues
When you win a bid on for an Internet domain name, you don't own that name; you are only renting it. You pay the previous owner for the right to rent that name for a year - so who really owns it? The answer to that question is a tricky one. To answer it, you really need to know a little bit about how the Internet works.
In order to get an Internet connection to your house, business, car etc. you typically must pay an Internet Provider. This is similar to paying a phone company for telephone service and can be exactly like that as many phone companies are also Internet providers. Once you are connected to the Internet you can send email, listen to music, surf web pages and all other things cyberspace but what really happens when you type www.gradcenter.marlboro.edu into your browser? www.gradcenter.marlboro.edu is known as a URL or Universal Resource Locator. Each URL can be translated into a unique I.P. or Internet Protocol address. This translation occurs at a special type of computer called a Domain Name Server (DNS) which keeps a lookup table of URLs (www.gradcenter.marlboro.edu) and IP addresses (206.192.68.2). If you want to find the I.P. address of a URL you can go to a site like http://www.ip-adress.com/, type in a URL and it will tell you all sorts of information about it.
I also "own" a domain name 398North.com. Every year, I pay a hosting company called Planet Hosting $25.00 to continue to "own" it.
If I type my URL into another website http://reports.internic.net/cgi/whois I get back
What does this all have to do with Internet Real Estate? Notice the last like of the listing above; "Experation Date:" If I am even one day late in paying that fee, someone else can buy 398North.com - for one year - for my $25.00. So, if I am only renting my URL, who owns it? One possible answer is Planet Hosting; that's who I pay my rent to. However, I can change to another Internet Host, keep my URL and pay the new host an annual fee instead of paying it to Planet Hosting. Another possibility is ICANN - the Internet Corporation for Assigned Names and Numbers. From their website -
ICANN is responsible for managing and coordinating the Domain Name System (DNS) to ensure that every address is unique and that all users of the Internet can find all valid addresses. It does this by overseeing the distribution of unique IP addresses and domain names. It also ensures that each domain name maps to the correct IP address.
- but I don't pay ICANN anything. So really what I'm paying for is to have the DNS system connect people who type www.398North.com into their browser window to the IP address I have designated. I'm pretty happy I didn't pay $150,000 for that.
In order to get an Internet connection to your house, business, car etc. you typically must pay an Internet Provider. This is similar to paying a phone company for telephone service and can be exactly like that as many phone companies are also Internet providers. Once you are connected to the Internet you can send email, listen to music, surf web pages and all other things cyberspace but what really happens when you type www.gradcenter.marlboro.edu into your browser? www.gradcenter.marlboro.edu is known as a URL or Universal Resource Locator. Each URL can be translated into a unique I.P. or Internet Protocol address. This translation occurs at a special type of computer called a Domain Name Server (DNS) which keeps a lookup table of URLs (www.gradcenter.marlboro.edu) and IP addresses (206.192.68.2). If you want to find the I.P. address of a URL you can go to a site like http://www.ip-adress.com/, type in a URL and it will tell you all sorts of information about it.
IP address location & IP address info:
IP address [?]: 206.192.68.2 Copy
IP address country: flag United States
IP address state: Vermont
IP address city: Marlboro
IP postcode: 05344
IP address latitude: 42.860100
IP address longitude: -72.728897
ISP [?]: TelCove
Organization: Marlboro College
Host: ernestine.marlboro.edu
Local Time: 2007-10-28 21:30
IP address [?]: 206.192.68.2 Copy
IP address country: flag United States
IP address state: Vermont
IP address city: Marlboro
IP postcode: 05344
IP address latitude: 42.860100
IP address longitude: -72.728897
ISP [?]: TelCove
Organization: Marlboro College
Host: ernestine.marlboro.edu
Local Time: 2007-10-28 21:30
I also "own" a domain name 398North.com. Every year, I pay a hosting company called Planet Hosting $25.00 to continue to "own" it.
If I type my URL into another website http://reports.internic.net/cgi/whois I get back
Whois Server Version 1.3
Domain names in the .com and .net domains can now be registered
with many different competing registrars. Go to http://www.internic.net
for detailed information.
Domain names in the .com and .net domains can now be registered
with many different competing registrars. Go to http://www.internic.net
for detailed information.
Domain Name: 398NORTH.COM
Registrar: INTERCOSMOS MEDIA GROUP, INC. D/B/A DIRECTNIC.COM
Whois Server: whois.directnic.com
Referral URL: http://www.directnic.com
Name Server: NS0.PLANETHOSTING.COM
Name Server: NS1.PLANETHOSTING.COM
Status: clientTransferProhibited
Status: clientUpdateProhibited
Status: clientDeleteProhibited
Updated Date: 07-may-2007
Creation Date: 26-may-2004
Expiration Date: 26-may-2008
Registrar: INTERCOSMOS MEDIA GROUP, INC. D/B/A DIRECTNIC.COM
Whois Server: whois.directnic.com
Referral URL: http://www.directnic.com
Name Server: NS0.PLANETHOSTING.COM
Name Server: NS1.PLANETHOSTING.COM
Status: clientTransferProhibited
Status: clientUpdateProhibited
Status: clientDeleteProhibited
Updated Date: 07-may-2007
Creation Date: 26-may-2004
Expiration Date: 26-may-2008
What does this all have to do with Internet Real Estate? Notice the last like of the listing above; "Experation Date:" If I am even one day late in paying that fee, someone else can buy 398North.com - for one year - for my $25.00. So, if I am only renting my URL, who owns it? One possible answer is Planet Hosting; that's who I pay my rent to. However, I can change to another Internet Host, keep my URL and pay the new host an annual fee instead of paying it to Planet Hosting. Another possibility is ICANN - the Internet Corporation for Assigned Names and Numbers. From their website -
ICANN is responsible for managing and coordinating the Domain Name System (DNS) to ensure that every address is unique and that all users of the Internet can find all valid addresses. It does this by overseeing the distribution of unique IP addresses and domain names. It also ensures that each domain name maps to the correct IP address.
- but I don't pay ICANN anything. So really what I'm paying for is to have the DNS system connect people who type www.398North.com into their browser window to the IP address I have designated. I'm pretty happy I didn't pay $150,000 for that.
Thursday, October 25, 2007
Blogging about Bloging about Blogging
So, I read Maury's blog entry about Blogging and I have to agree that I would never have done it without being forced to in this class and will probably stop as soon as the class is over.
There have been some positive aspects, such as being forced to examine my life for technical interactions. The way it usually works is that I have an idea for a Blog entry, go research it so I don't sound like a fool and so I have supporting links to add, then sit down and start to write. I usually compose it in TextPad, my favorite text editor, so that I can write in chunks - rather that in one sitting - and so I can spell check it. Again, so I don't sound like a fool. After pasting the entry into the Blog, I go and make the links
That said, I am still disinclined to continue Blogging after class is over because I feel that the time I spend Blogging, I could spend learning something or accomplishing something and not just talking about learning or accomplishing something. Now writing a Blog PROGRAM, that would be cool.
There have been some positive aspects, such as being forced to examine my life for technical interactions. The way it usually works is that I have an idea for a Blog entry, go research it so I don't sound like a fool and so I have supporting links to add, then sit down and start to write. I usually compose it in TextPad, my favorite text editor, so that I can write in chunks - rather that in one sitting - and so I can spell check it. Again, so I don't sound like a fool. After pasting the entry into the Blog, I go and make the links
That said, I am still disinclined to continue Blogging after class is over because I feel that the time I spend Blogging, I could spend learning something or accomplishing something and not just talking about learning or accomplishing something. Now writing a Blog PROGRAM, that would be cool.
Tuesday, October 23, 2007
iPod
I received a free iPod from Marlboro for promising to graduate. I would never have purchased an iPod for myself but was willing to try it out risk free. My impressions? So-so. Right away I started to have problems with it; I couldn't get it out of the plastic do-hickey attached to the box. It took a 14 year old that helps my wife with the horses to show me that you have to take the top plastic plate out of the box before you can see the instructions on the back of the plate showing you how to bend the plate to get the iPod out.
It was smaller than I expected it to be, too small. I was afraid I would break it or drop it or sit on it every time I touched it. Still, this class is all about trying new technologies so I "ripped" a couple of my favorite CDs to my hard-drive using windows media player, plugged my iPod into my computer (which recognized it immediately) and ... tried to "synchronize" with my iPod. No luck.
After some research (browsing) I discovered that only iTunes can synch with and iPod so I downloaded and installed iTunes (aggressively saying no every time Apple insisted I give them my credit card number so I could open and iTunes account) and tried loading the .wav files I had ripped from my CDs. Hmmm, apparently, only mp3 format files can be transfered from Windows Media Player to iTunes so I re-ripped the CDs in mp3 format and, finally got a couple dozen songs on my iPod. I listened for a couple of minutes and turned it off. Enough for one night.
In the subsequent days, I loaded a class lecture into my iPod and listened to a couple of minutes of that too, before turning it off. After picking it up and setting it down a couple of times, I concluded that I didn't like an ear-full of music, I liked a car or room full. Off to Best Buy to price my options. For car? SOL. I don't have a tape deck in my stereo (who listens to tapes any more) so hooking it up through my car stereo becomes an electronic problem. I can buy a very nice speaker set to hook my iPod into but I already have a nice set of Bose speakers and I'm not inclined to blow another couple hundred dollars for a lower quality sound.
Finally I said "screw it" and gave it to the 14 year old who had dropped hers in a puddle and tried to dry it out in a microwave.
For $35.00 at Radio Shack, I bought an attachment for my stereo so I can play MP3s from my computer on my house stereo. I'll keep you posted.
It was smaller than I expected it to be, too small. I was afraid I would break it or drop it or sit on it every time I touched it. Still, this class is all about trying new technologies so I "ripped" a couple of my favorite CDs to my hard-drive using windows media player, plugged my iPod into my computer (which recognized it immediately) and ... tried to "synchronize" with my iPod. No luck.
After some research (browsing) I discovered that only iTunes can synch with and iPod so I downloaded and installed iTunes (aggressively saying no every time Apple insisted I give them my credit card number so I could open and iTunes account) and tried loading the .wav files I had ripped from my CDs. Hmmm, apparently, only mp3 format files can be transfered from Windows Media Player to iTunes so I re-ripped the CDs in mp3 format and, finally got a couple dozen songs on my iPod. I listened for a couple of minutes and turned it off. Enough for one night.
In the subsequent days, I loaded a class lecture into my iPod and listened to a couple of minutes of that too, before turning it off. After picking it up and setting it down a couple of times, I concluded that I didn't like an ear-full of music, I liked a car or room full. Off to Best Buy to price my options. For car? SOL. I don't have a tape deck in my stereo (who listens to tapes any more) so hooking it up through my car stereo becomes an electronic problem. I can buy a very nice speaker set to hook my iPod into but I already have a nice set of Bose speakers and I'm not inclined to blow another couple hundred dollars for a lower quality sound.
Finally I said "screw it" and gave it to the 14 year old who had dropped hers in a puddle and tried to dry it out in a microwave.
For $35.00 at Radio Shack, I bought an attachment for my stereo so I can play MP3s from my computer on my house stereo. I'll keep you posted.
Monday, October 22, 2007
Of cabbages and kings
I don't tend to look at who wrote a blog when I'm reading it but somehow always end up responding to Peter's postings - this one on RFID chips.
First, a note that three states have banned forced RFID tags, Wisconsin, North Dakota and now California, although Tommy Thompson, governor of Wisconsin has chosen to be implanted. I think Vermont should join the list.
And before you run for the protection of your tinfoil hat, please read this M.I.T. study ...
First, a note that three states have banned forced RFID tags, Wisconsin, North Dakota and now California, although Tommy Thompson, governor of Wisconsin has chosen to be implanted. I think Vermont should join the list.
And before you run for the protection of your tinfoil hat, please read this M.I.T. study ...
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