General

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A Short Networking Quiz

1) An essential characteristic of UDP is that it is

a) unreliable
b) undecipherable
c) unconscionable
d) unwieldy

2) This characteristic is a result of which quality of UDP?

a) guaranteed
b) ordered
c) archaic
d) stateless

3) Which essential service of the Internet relies on UDP?

a) WINS
b) NFS
c) DNS
d) FTP

4) What happens when you increase the “connection timeout” in a firewall for UDP packets from 40 seconds to 60 minutes? (Hint: the connection timeout value determines how long entries are retained in the table the firewall maintains in order to track state.)

If necessary, review http://en.wikipedia.org/wiki/User_Datagram_Protocol

A $50 Gift Card

$50

Frankly, I don’t understand why people buy gift cards. I understand why they give them, but not why they buy them.

Gift cards are given because giving the card, instead of cash, shows that you spent some time and effort thinking about the gift. The selection of which store can even indicate that you know a little something about the recipient. I tend to receive Barnes & Noble cards, for example.

What’s puzzling is why people buy gift cards. Many entail fees, declining value over time, and expiration dates. Is the benefit of a good impression sufficient to cover these additional costs?

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In Memoriam

Back before Twitter, there was jogger.jabber.org.

September 11th
10:40:10 AM
R.I.P. WTC :-(
10:06:15 AM
Looks like most of the news sites have been /.d. Guess no one has learned their bandwidth lessons.
10:05:26 AM
a0551 —–
wbx
AP-PENTAGON EXPLOSION, 1ST ADD
“I saw the tail of a large airliner. … It plowed right into the Pentagon,” said an Associated Press Radio reporter. “There is billowing black smoke.”
09:12:02 AM
A plane just crashed into the World Trade Center. Picture on www.cnn.com

Many people started writing that day.

While reading In Our Image: America’s Empire in the Phillipines, I came across mention of a disturbingly familiar topic. War is hell.

From The New York Times, April 15, 1902, the following (also at wikisource).

WASHINGTON, April 14.—The Senate Committee on the Philippines began the week with the intention of making an investigation of the charges to the effect that the “water cure,” so-called, is practiced on the insurgents, and Charles S. Riley of Northampton, Mass., formerly a Sergeant in Company M, Twenty-sixth Volunteer Infantry, was the first witness Called with that end in view.

Mr. Riley said that he had been in the Philippines from Oct. 25, 1899, to March 4, 1901. In reply to questions by Senator Rawlins, he said he had witnessed the “water cure” at Igbaras, in the Province of Iloilo, on Nov. 27, 1900. It was administered to the Presidente or chief Filipino official of the town. He said that upon the arrival of his command at Igbaras the Presidente was asked whether runners had been sent out notifying the insurgents of their presence, and that upon his refusal to give the information he was taken to the convent where the witness was stationed and the water cure was administered to him.

This official was, he said, a man about forty years of age. When he (the witness) first saw him he was standing in the corridor of the convent, stripped to the waist and his hands tied behind him, with officers and soldiers about. The man, he said, was then thrown under a water tank which held about 100 gallons of water, and his mouth placed directly under the faucet and held open so as to compel him to swallow the water which was allowed to escape from the tank. Over him stood an interpreter repeating one word, which the witness said he did not understand, but which he believed to be the native equivalent of “confess.” The Presidente agreed to tell what he knew, was released, and allowed to start away. He was not, however; permitted to escape. Water was brought in a five-gallon can, one end of a syringe was placed in it and the other in the man’s mouth. As he still refused a second syringe was brought and one end of it placed in the prostrate man’s nose. He still refused, and a handful of salt was thrown into the water. This had the desired effect, and the Presidente agreed to answer questions.

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Benefits

Health care as an employer-provided benefit arose in response to salary caps and payroll taxes [citation needed]. It was a way to compete for employees by increasing the employee’s effective salary without having to pay all of the cost. Employee benefits, as part of the total compensation package, are still used to compete for quality workers. Compare, for example, the descriptions of the benefits offered to work for these three companies. Two are fast-rising stars. Two are publicly-traded. One ranks seventh among the most profitable companies in America.

For which would you wish to work?

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Grandmother’s Fruit Cobbler

  • 1 c. sugar
  • 1 c. flour
  • 1 c. milk
  • 1 stick butter
  • 3 tsp. baking powder
  • 1 qt. fruit, sweetened

Heat sweetened fruit in saucepan. Melt butter in deep baking dish (at least a 2 qt. size). Mix sugar, flour, milk and baking powder. Pour batter into hot, melted butter, then add hot fruit.

Bake at 375° for 25 minutes.

Serve from the oven, topped with ice cream.

recipe from Leta Bell Cox, published in the Beverly Presbyterian Church Cookbook (2002)

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Sometimes the Graphical Interface is Non-Optimal

mysql> delete from wp_comments where comment_approved = 'spam';
Query OK, 1758 rows affected (0.16 sec)

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Footprint per Capita

The newspaper had a map of each country’s carbon footprint per person. Something like this one from Wikipedia.

carbon dioxide emissions per capita per country

This is one of those graphics that misleads with statistics. The U.S. seems top of the charts here, but one has to recall that the ranking is per person. Compare, for example, China or India, which have many more people than the U.S. In the ranking of emissions per capita, the United States comes in 10th, behind Qatar and other well-known polluters such as Aruba. China is 91st, while India is 133rd. However, considering emissions alone, without dividing by the population, we’re #1, followed closely by China, with Russia and India lagging behind in 3rd and 4th place, respectively.

carbon dioxide emissions by country

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Faded Memories

All I remember of one of the few records I owned as a child is a line that ended one of the songs.

Save your Confederate credit cards. The South’s gonna rise again.

For some reason that stuck with me. I thought it was funny since the Confederacy didn’t have credit cards. I wonder what song that was, and who sang it.

Statistical Enquiry of the Devil’s Playground

Certain laws and regulations, and policies related to those, have a non-trivial impact on statistics which are not normally thought of in concert with those laws. For example, mandatory sentencing increases incarceration rates, which in turn will decrease the employable population. Child labor laws directly impact the employable population, but so do mandatory attendance requirements for high school.

How does the unemployment rate of the United States compare to other nations when differences in incarceration rates and school attendance are taken into account?

Or, where do these people find the time to riot?

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New York City Department of Kafka

What the fuck?

We hear from New York City school teachers about a secret room in the New York City Board of Education building. Teachers are told to report there, and when they arrive, they find out they’re under investigation for something. They have to wait in this room all day, every day, until the matter is cleared up. They call this bureaucratic purgatory “the rubber room.” Some teachers have been stuck in it for years.

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Air Conditioners

The Big Sister had an informed response to the President’s suggestion that we send our children to school all year.

They’d have to buy air conditioners!

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Incentives to Comment

Isn’t a shame that the only people with any incentive to comment are trolls or spammers?

What Makes Them So Special?

Why is it that banks can create money out of thin air but I can’t?

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Thank You

To the person who purchased something from Amazon by clicking on a link from this site, thank you.

Now I have the difficult, but enjoyable, task of selecting something from the 262 items on my wish list.

New Theme

I’ve updated the theme here to Tarski. Pretty nice looking so far.

Live! (on TiVo)

We’ll be watching the pomp and circumstance with the kids this evening, perhaps with a tub of popcorn and some hot chocolate.

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Debugging

I’ve liked WordPress because the interface has been straightforward, it’s easily upgraded, and the developers have done an excellent job of maintaining backward compatibility so I don’t have to think too much about it.

I just noticed that my feed URI is in an infinite loop, and likely has been since I installed WordPress 2.7 around December 11.

While I’ve left my half of the configuration unchanged — the rewrite rules that make the friendly URIs work — the WordPress team has deprecated the file that did the work: wp-feed.php. Unfortunately, the documentation is not quite up to date, so this may take some poking and prodding before it’s fixed. In the meantime, I’ve put the 2.6 version back in.

Must Be Nice

I get the feeling that Rick’s new job involves daily posts to his site.

Yell Back

I would like a quick way to yell back at the radio while I’m driving, and have that yell posted on my web site.

For example, yesterday Terry Gross assumed that electronic medical records are needed, and that they were an appropriate target of Federal stimulus funds. No! If electronic medical records were as desperately needed, then the businesses in the health care industry would build something. There’s absolutely no need, whatsoever, for government participation or funding.

(I suppose if you want easier access to the medical records of the population, then electronic records are easier to search, even with a warrant: SELECT citizen_name,citizen_address FROM citizens WHERE peanut_allergy = 'Y' AND political_party != "Democratic";

)

Don’t get me started on our “crumbling” infrastructure. It’s not. Those potholes appear in New York streets every year. The roads are in great condition, even many in poorer States. Bridges? Maybe if they had not been poorly designed, then they’d last longer than 40 years.

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