2007 Sep 23 - Sun

Implementing SpeedyCGI/PersistentPerl on Debian Etch

I've recently moved away from Perl and Mason for web hosting into the world of C++ and CGI with Wt.

But for my own future reference, for if/when I need to do something with Perl in Apache, I can refer to Falko Timme's article on Speeding Up Perl Scripts With SpeedyCGI/PersistentPerl On Debian Etch as a reference on how to make Perl fast in Apache.

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Embedded Debian

Enterprise Networking has a short article on some recent specialized motherboards running embedded Debian. They have an article called Voyage Linux: The Comforts of Debian. Embedded.. A number of specific distributions are mentioned, such as m0n0wall, uClibc, Pyramid, and iMedia. The article is about a new contender called Voyage Linux.

The article is about getting Voyage Linux installed and running on flash card. It is the first in a series for ultimately getting an internet-connection sharing firewall in place.

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phoneAlarm for the PocketPC, and GPS Also

I believe the HTC Kaiser is now out and availble. It is getting good reviews as a good device that does have everything, including the kitchen sink. The only think I havn't heard yet is whether or not it has good battery life (for a device with more memory and more functionality, does it come with a power price?).

A reviewer at Pocket PC Thoughts mentioned a piece of software the may prove useful with the device, at least it did for him... something called PhoneAlarm by pocketMAx.

On the GPS side of things, the reviewer mentioned GPS products called Pharos Ostia and Delorme. These are add-on packages. The HTC does come bundled with TOm Tom Navigator, but maps are extra cost, which may be true with the other two mentioned items.

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Sentiment Indicators with Option Statistics

When I have the time, I've been spending it adding capabilities to my trading software. My current addition is an Option Watcher. Nothing to really trade, just some thing to watch the state a complete options list for the trading instrument in which I'm interested.

A while ago, or rather, a long while ago, I looked into trading options. That turned out to be a very complicated endeavor. I decided to set it aside and come back to it later. Now isn't quite the 'later' I was thinking about, but I've been keeping them in mind. An article by Jeff Neal from Optionetics expanded upon the recent thoughts I've been having with his article called OUTSIDE THE BOX: Option Statistics as Sentiment Indicators. Here are a few choice exerpts where he says things better than I can:

One of the best ways to get a handle on sentiment in a particular stock is to monitor the activity of option traders. For instance, monitoring and tracking option volume and option open interest changes can reveal important information in regards to the expectations of traders, as well as how they may be positioned.

Option volume when unusually high can often times can identify explosive moves and identifies for the trader just where the action is taking place.

To best forecast a directional change in the market, it is important to monitor the daily gyrations of open interest. The thinking is that small investors are typically on the wrong side of a rally, an unusual increase or decline in the open interest of put and/or calls often signal a change in directional bias. Usually an abnormal rise or decline in open interest sends a contrarian type signal to the sentiment trader.

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Recent Comments on Scalping in Elite Trader Forums

"The market is all about watching the same areas as the pros are and following their lead. Breakouts on low volume are rookies taking the shares off the pro's hands with no clue they can't fuel the next leg." -- mcichocki

"Some people can't scalp and others can't swing trade, it's all about finding what works for your mind." -- mcichocki

"learn to read tape and remember key numbers from tape support and resistance. The tape is true buying and selling so if you know what your doing with it you will know key levels to watch for breaks with heavy buyers/sellers." -- mcichocki (If one has a good memory, tape reading works. For those of us with less than good memories, having a program that shows total 'volume at price' opens up new vistas of information, similar to what you find when reading a tape.)

"Scalping can work at any market conditions, up, down, sideway... there are slow but no garbage days for a good scalper." -- enlightedtrader

"It's not unusual for a master scalper to obtain a daily trading outcome greater than the daily range although I've never seen it done on a consistently basis, day after day, often yes but not always." -- QuantPlus

"Signals always abound and noise has little impact - this is the zone where noise is tradable. " -- yoohoo

"The fact remains that the market zig-zags in every timeframe, and he who captures most of the distance covered has lower risk and greater return. Of course there us a cut off point where size is the final limiting factor for the scalper." -- yoohoo

"A zig-zag is longer than a straight line. The maximum profits are gained by trading the waves - that's simple maths." -- yoohoo

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HOW-TO: SSH and Remote File Systems

Debian Admin has an article called "Mount a remote file system through ssh using sshfs".

Here is the introduction of the how-to:

If you want to access a remote file system through ssh you need to install sshfs. sshfs is a filesystem client based on the SSH File Transfer Protocol. Since most SSH servers already support this protocol it is very easy to set up: i.e. on the server side there's nothing to do. On the client side mounting the file system is as easy as logging into the server with ssh.

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