Tuesday, July 26, 2011

Work in progress

I just wrapped up a class on Apache web server administration.  I learned a lot, some of it on purpose.  One of the things I learned accidentally is that Apache installs differently on Debian-based Linux distributions than on those based on Red Hat.  How did I learn this?  Well, the book used in class assumed a Red Hat distribution, and I used an Ubuntu 11.04 virtual appliance (Ubuntu is based on Debian).  Whoops.

So, now I have a bit of free time to work on my personal projects.  These include:


That's a pretty good list for now.  Back to working on a PowerShell script for my job.

Friday, April 8, 2011

Dropbox authentication: insecure by design

Dropbox authentication: insecure by design

Derek Newton, on his Information Security Insights blog, has observed that copying a single file (config.db), not specific to a particular computer, out of Dropbox's application data folder (%APPDATA%\Dropbox)*, allows anyone with that file to install and sync with the Dropbox account linked to that particular installation of the local client software. What's the big deal? This means that all of the files stored in that Dropbox are accessible** to anyone who has a copy of that particular config.db, even if the password for the Dropbox account is changed. Please give the original post a read for his three recommendations to deal with this vulnerability.


*His example is from a machine running Windows.
** For viewing, copying, changing or infecting with malware.

Monday, February 21, 2011

I want: HP ProLiant MicroServer

HP ProLiant MicroServer series - HP ProLiant MicroServer

These are quite affordable (<$400), fairly expandable and capable of RAID 0 or 1.


I think I'm going to get one and put ESXi on it.

Tuesday, September 7, 2010

Unidentified Network issue with VMWare’s virtual NICs in Vista | a Single Point of Contact

I ran into the problem of the virtual network adapters used by VMWare virtual machines remaining unidentified after I reinstalled VMWare Workstation (version 6.5.4) on my freshly installed Windows 7 build (I figured that it was time for an upgrade from XP).

I found the fix at Matt Wade's blog, a Single Point of Contact:
Unidentified Network issue with VMWare’s virtual NICs in Vista | a Single Point of Contact

Sunday, April 25, 2010

B-17 at the Santa Barbara Airport (edited)

This is the B-17 "Aluminum Overcast", at the Santa Barbara Airport on 4/25/2010. I posted these pictures earlier, but decided to consolidate them all to a single post. Click on the pictures to see them full size.

Above: Cockpit from the port side.

Above: Technical specifications and crew positions.

Above: Exterior seen from starboard side.

Above: Exterior seen from port side (closer).

Above: Bow exterior.

Above: Engine closeup.

Above: Ball turret closeup. Note the Nazi swastika on the right side of the turret. That means a Luftwaffe pilot had a VERY bad day.

Above: Cockpit interior. Hard to see in this picture, but some of the modern equipment present includes GPS and satellite radio. The satellite radio is used to provide consistent weather reports.

Above: Interior bomb bay.

Tuesday, March 23, 2010

PowerShell

I recently concluded a class on using Microsoft's PowerShell, which is a more sophisticated scripting shell than the basic Windows command line interface (cmd.exe). All in all, I was impressed by it. It's still not as integral to Windows as bash (or other flavor of shell) is to UNIX/Linux, but it's a step closer.

Sunday, March 21, 2010

Microsoft's advantage over open-source

Now, I realize that open-source software has many advantages. This posting is not about them. Go Google "open source advantage" to see the multitude of postings that cover that subject. No, this posting is about Microsoft's advantage over the open source development community. Horrors!

No, not horrors... what was the other word of which I was thinking?

Oh, yeah. Boredom.

Huh?

Here is the back story. I was recently revising my resume using OpenOffice Writer. All in all, Open Office is a pretty solid office suite, especially for the price (which is free, if you didn't know.) However, I encountered some problems* when saving to Rich Text Format (.RTF). Why did I choose .RTF? So that people can open the file with a minimum of hassle. This would be preferable to sending out my resume in OpenOffice Writer's default format (.ODS), which would basically require people to have OpenOffice installed** if they wanted to read it. Reading the resume, of course, being the goal of sending it out in the first place, instead of having the recipients do something such as ignore the file. Microsoft can't really say that it is ahead in this part of the game: just ask anyone who has tried to send a Word 2007 (.DOCX) file to someone using a plain vanilla version of Word 2003.

So, I encountered a problem with formatting in my document when I tried to save the document in a form that doesn't require me to provide free technical support to the people to whom I send the document. This problem is one known to the OpenOffice user community, and I would hope it is known to the developers within that community. (Sadly, my coding skills are as of yet insufficient to grab the raw source code and fix it myself.) Apparently, this issue (which perusal of the forums will reveal has been known about for at least a year) is too boring (not sufficiently interesting) to attract the unpaid programming efforts of the open source community to effect a fix.

And therein lies my realization of an advantage Microsoft (or any other company) has over the open source development community: money. You see, money is what you give people to do things that they otherwise not be inclined to do. Things that might make them bored. So, when a problem is sufficiently boring, the (largely unpaid) open source community might never get around to fixing it. A company like Microsoft, on the other hand, can decide that the problem needs to get fixed and pay someone to do the boring work. (Actually making that decision is a whole other mess, mind you.)

The moral of the story: a boring problem led to me paying Microsoft for a copy of Office 2007.



* Specifically, problems with bullets and indentation. More specifically, said bullets and indentation not always being present after the file was saved, closed, and reopened. This is a known issue and discussions can be found in the OpenOffice Community Forum. There are workarounds, but the issue has not yet been fixed in code.

** There are plug-ins for Microsoft Office that allow this, but you never want to assume that optional third-party components are installed.

Thursday, January 21, 2010

Help for Haiti

I'm linking this from Direct Relief International. Please contribute if you are at all capable of doing so at this time. Direct Relief is a medical aid organization based in my home town of Santa Barbara. As mentioned on their home page, "A recent bequest has enabled Direct Relief to cover all fundraising and administrative expenses from its own funds. All contributions will be used for programmatic work."


In the long run, Haiti will also need to rebuild its highly-degraded ecology to become self-sufficient. I believe that permaculture is the best way to accomplish this goal. Permaculture Haiti is a portal (still under construction) for coordinating efforts and sharing ideas on how to restore Haiti. Please take a look at it and contribute if you can.

Miller-McCune article on the Cyberwar for Iran's Future

Interesting article from Miller-McCune on the flexibility and limitations of electronic dissent. While in some ways it is more difficult for authorities to restrict, text messaging and the like are not necessarily a match for an authoritarian regime with a bit of technological knowledge. There are some examples in the article of popular movements that benefited greatly from new media technology. Most of the detail covers the events following Iranian election of 2009, as the title might indicate.

Here is the link:
Politics Articles | Inside the Cyberwar for Iran's Future | Miller-McCune Online Magazine

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Friday, January 8, 2010

AFL-CIO report on H1B hiring

According to this report from the AFL-CIO, American companies are using a non-existent labor shortage of high technology workers in order to justify H1B hiring. In turn, this depresses wages for American workers. In reality, the only shortage of American high technology workers is in the segment of the labor force willing to work at below-market wages.

http://www.dpeaflcio.org/pdf/Gaming_the_System_Report_.pdf

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Sunday, December 27, 2009

Wikipedia work

I'm considering putting in some work on Wikipedia on the history of my home town. Still at the considering phase, but I'll link any entries I put up.

Thursday, December 24, 2009

Sunday, December 20, 2009

Santa Barbara, seen from the end of Stearns Wharf. 12/20/2009

Saturday, December 19, 2009

Taken from West Camino Cielo overlooking Santa Barbara. 12/19/2009

Taken from West Camino Cielo overlooking Goleta. 12/19/2009

Thursday, December 10, 2009

Done with my finals for the semester

I'm done with my finals at SBCC for the semester. Looking back, I would say that classes on Exchange Server should be taken by themselves. I would also say that PowerShell and ActiveDirectory knowledge should be considered a prerequisite for studying Exchange Server. Don't get me wrong, I learned a lot, but it was a challenging class.

Thursday, November 26, 2009

Happy Thanksgiving!

Happy Thanksgiving to all!

If at all possible, take some time today to reflect on what you have to be thankful for in this world.

Wednesday, November 25, 2009

Day before Thanksgiving, beautiful day for a walk through the nearby park.

Wednesday, November 18, 2009

Petroleum depletion and biofuels

First of all, let's get something straight: the world is running out of petroleum. Yes, there is some being produced by natural processes, but, no, that doesn't compensate for what is being used. What makes me suspect that we are going to run out sooner than people like? Things like this article. If you didn't read the preceding link, let me sum it up for you: it seems the International Energy Agency was pressured by the United States government to adjust the reports of oil production and reserves to make it look like there was more oil available than was actually available. And the accuracy of oil reserves accounting needs to be scrutinized, like this report on Kuwait's reserves concludes. The Air Force is planning ahead, and the rest of the world should be, too.

Of course, there is the problem that petroleum replacements rely heavily on other fossil fuels, which are also in finite supply. As fossil fuels start being used as petroleum replacements, their scarcity will increase. This will mean that not only transportation costs, but everything that relies on fossil fuels will be more expensive: including what we eat. A lot of the food the world consumes depends on cheap and readily available fossil fuel products. We as a species have gotten into some bad habits by using things like fertilizer (largely made from natural gas) to compensate for farming techniques that are degrading our topsoil. Thus, biofuels are problematic: the crops used (corn in North America being a prime example) are already using fossil fuel inputs in their production and producing fuel from them means diverting them from the food supply, producing fuels in this way exacerbates fuel scarcity, further degrades the environment and drives up food costs.

This is why I am happy to read that there are ways to make biodiesel that are quite renewable, although the scale and convenience will never equal that of petroleum. The answer in the long term is to become more energy efficient, plan ahead and work on repairing the damage that has already been done to the environment. None of this is impossible, even replenishing the topsoil can be done.

Friday, November 13, 2009

Want 50Mbps Internet in your town? Threaten to roll out your own - Ars Technica

Ummm, here's a little free advice to America's telecommunications companies: spend less money on John McCain and more money on upgrading your capabilities, and you won't look as bad. Simply put, our broadband Internet access is not the best in the world, and won't be until the broadband providers start getting serious about improving service.

Want 50Mbps Internet in your town? Threaten to roll out your own - Ars Technica

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