Well, it turns out that I can read. I know, who would have thunk? I did a review of "Atlas Shrugged" with Dann Washko from TLLTS (look it up if you don't know). Stranger still is that Dann can read too!

So we were talking it over and decided to do a book review which wasn't really the content for either of our podcasts, so we recorded it and set it up to HPR and it got dropped!!!

If you are interested in hearing what Dann and I had to say then please go listen to the podcast and offer feedback for Dann and I who are actually talking about reviewing other books that we have both read.

--

CafeNinja

This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 United States License.

Tin Foil Hat Show - Episode 005

Episode 5. Not my best work, but still appliciable. I'm just doing my best to keep my eye on the prize for the bi-weekly release date.

I have had no response to the call for feedback on the introduction of the "podcast review" segment of the show, so I'll start producing that with episode 6.

The new episode should be in your favorite podcatcher for download by the time you read this. If you haven't added me to your podcatcher software, please add the RSS feed on the right.

The podcast is also available to play directly online at the Fuzion Podcast Network.

For the instructions to get the show notes please see the instructions as posted in the post for the first episode. These instructions haven't changed.

Feedback as always is welcome, tinfoilhatshow@gmail.com or you can contact me by any of the other methods listed here on this blog. Please remember that the show is very new and still settling in, but constructive criticisms are always appreciated.

Enjoy and please do send me feedback and corrections, it can only make the show better. A permanent link to the show's rss feed is listed on the right side of the blog.

--

CafeNinja

This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 United States License.

Let's start talking about keys

I have received quite a few requests after the last Tin Foil Hat Show asking for gpg keys to be shared so that webs of trust could be built. While I won't be able to organize a key sharing party like the one described in "Little Brother" by Cory Doctorow, I do believe in the security and trust levels that are supported by GPG keys.

I'd like to offer my key for the Tin Foil Hat Show as the contact point for key sharing. I would be happy to sign, read or verify anyone's key if you wish to share it. My key is "0x5110932D" and you should be able to import tinfoilhatshow@gmail.com from hkp://pgp.mit.edu:11371 or hkp://keyserver.ubuntu.com:11371 as I have uploaded them there.

If you have created a key based on Tin Foil Hat Show, make sure you export them to a keyserver so that it can be validated as a real key. I look forward to anyone who would like to test their keys or signatures out writing to tinfoilhatshow@gmail.com.

--

CafeNinja

This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 United States License.

Tin Foil Hat Show - Episode 004

Success!! Well, my bar is low.  I have made it to Episode 4.   I've really appreciated the feedback and participation in the podcast so far.  You guys are a real credit to "fans". Please find the link to the feed on the right of the blog or here.

The podcast is also available to play directly online at the Fuzion Podcast Network.

For the instructions to get the show notes please see the instructions as posted in the post for the first episode.  These instructions haven't changed.

Feedback as always is welcome, tinfoilhatshow@gmail.com or you can contact me by any of the other methods listed here on this blog.  Please remember that the show is very new and still settling in, but constructive criticisms are always appreciated.

Enjoy and please do send me feedback and corrections, it can only make the show better.  A permanent link to the show's rss feed is listed on the right side of the blog.

--
CafeNinja

This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 United States License.

Tin Foil Hat Show - Promo

For promo's of the Tin Foil Hat Show, please feel free to download and use with authorization of the original artist the following mp3 files:

http://dl.dropbox.com/u/396749/TFH-promo-1m.mp3

http://dl.dropbox.com/u/396749/TFH-promo-29sec.mp3

Thanks for spreading the word, if you use the promo in your show please let me know in the comments so I can return the favor.

--

CafeNinja

This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 United States License.

CLI - Vim and Awk

Vim and awk.  It is great to make a list, then modify that list and save it out.  These types of tools are why using any text editor on Linux is way more powerful than on the competition's operating system.  Just like with most solutions in Linux is that the tools are probably too many and do too much so the first steps are overwhelming with choices.

While a use case that doesn't happen every day here is the quick geek-mode of explaining a recent use I had.   Situation: home server runs dnsmasq (dns and dhcp server) for the home network.  I needed to ping assigned IP's for a monitoring script.  This is the geek-mode of explaining what I did.  With the resulting screenshot.

$vim fake-hosts   

This makes the new empty file.

:r !cat /etc/hosts

Fills the file with the current hosts file contents.  I've cleaned up comments and lines that won't change by using "dd" to delete the self referring IP's and lines that start with "#" since they aren't really IP addresses

%!awk '{print "ping "$1}'

This takes the IP column and prints it as the second column while creating a new first column with only the word 'ping' and notice that there is the space included inside the double quotes.

Remember, if you make a mistake with one of these that while in the CMD mode of vim the keyboard command "u" does undo just as you might expect it should. 

This process works differently than a search and replace where you need to change the subnet, it would make since to just do a search and replace of "168.0." -> "168.2." which would replace only that value.

This process works if you need to do transitive work on a text file that isn't a csv format.  Note that with this tool it is easy to take a list of results and make a csv with something like  %!awk '{print $1 ", " $2 ", " $3}'  and the 3 column file turns into a csv.  But wait, the original is correct, but in the wrong order, make your corrected csv with the following -> %!awk '{print $2 ", " $3 ", " $1}' with awesome results.

Play with it, have fun.

--
CafeNinja

This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 United States License.

MythTv troubles

Well, I have had a couple of issues this month with mythtv.  I should clarify that statement, not with mythtv so much per se as with the mythtv frontend builds.

On my home network during the run of Ubuntu 10.04 I had the server, 4 Ubuntu desktops and 2 Mac's all using the mythserver that was in the standard 10.04(.01) repo's without any issues.

When Ubuntu 10.10 was released I did a single clean install on my netbook to ensure the clean install went well and there were no other issues when I discovered that the 10.10 Ubutnu mythtv backend and frontend had been upgraded to 0.23+patches (build 26437). 

While independently this gave me no worries since I knew once I upgraded all Ubuntu machines everything would jive up and be right with the world.   And to their Apple-ish credit, as long as I did just that, everything worked out dandy and without issue.  Five complete in-line upgrades of the server and desktops and all worked smashingly well.

Oh, save two.  Turns out there haven't been any "nightly" builds of the MacOS version of the frontend of myth using the 26437 build, so any version of the mythtv frontend of MacOS just fails claiming the database is 9 versions too old.

This issue would normally not even raise an eyebrow since one of the two machines actually dual-boots to Ubuntu so I can watch from that side however the last machine in question would be the Mac Mini in the living room attached to the large screen TV.  When it's easy, the family is good at managing the situation and watching their media in comfort, but now, I have no answer and only hope and pray someone updates the MacOS frontend.

I love open source and I know this is one of the perils of version control that isn't strictly released and maintained by some monster company.  But I would like for this article to serve as advise for anyone deploying "systems" or "servers" on their own.  Beware, there is a reason why SysAdmins and Network Eng get paid the money they do and it is very easy for a home user to forget to check such things and he/she should do their due diligence if they don't want to break things that they and their family depend on, which happens if you build it well :)

--
CafeNinja

This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 United States License.

Tin Foil Hat Show - Episode 003

As an additional appointment in the continuing saga that is the Tin Foil Hat Show, it would seem that episode 003 has been dropped in the feed.   Please find the link to the feed on the right of the blog or here.

The podcast is also available to play directly online at the Fuzion Podcast Network.

For the instructions to get the show notes please see the instructions as posted in the post for the first episode.  These instructions shouldn't change.

Feedback as always is welcome, tinfoilhatshow@gmail.com or you can contact me by any of the other methods listed here on this blog.  Please remember that the show is very new and still settling in, but constructive criticisms are always appreciated.

Enjoy and please do send me feedback and corrections, it can only make the show better.  A permanent link to the show's rss feed is listed on the right side of the blog.


--
CafeNinja

This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 United States License.

Tin Foil Hat Show - Fan Support

I'd like to make a huge call out to Bernd, a Tin Foil Hat Show listener.  He found the show notes interesting enough and made a plugin for gpodder to get the show notes out.   I want to say a few things on this and they are not in order of priority:





1.) WOW man, that is frackin' cool!  I am way impressed and good on ya!
2.) This is EXACTLY what "open source" and "community" are all about.
3.) I am moved by your engagement with the show and I hope to keep the goodness coming for as long as I have listeners like yourself.

In short, Thanks Bernd!!!  In long, Bernd, you are awesome for coding this tool and more awesome for making it available.  I hope this post makes you rock-star famous.  And how you managed to find the username "Bread" to be free, I'll never know.

--
CafeNinja

This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 United States License.

Tin Foil Hat Show - Update

Thanks to the anonymous listener who commented on my Tin Foil Hat Show post for episode 001, who let me know there was an issue with the images in the files.  While I have posted the files individually in the posts for episode 001 and 002 the files in the podcast feed have been replaced and you should be able to either download them again or use the images in those posts.  This shouldn't be an issue moving forward since the production team are now aware of how/what I'm doing with that jpeg.  

Enjoy the future shows and thanks again for the feedback.

--
CafeNinja

This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 United States License.

Tin Foil Hat Show - Episode 002

As an additional appointment in the continuing saga that is the Tin Foil Hat Show, it would seem that episode 002 has been dropped in the feed.   Please find the link to the feed on the right of the blog or here.

I'd like to thank Seawn from the Fuzion Podcast Network for the upgraded artwork.  Thanks a bunch Seawn, really strong work.

For the instructions to get the show notes please see the instructions as posted in the post for the first episode.  These instructions shouldn't change.


Feedback as always is welcome, tinfoilhatshow@gmail.com or you can contact me by any of the other methods listed here on this blog.  Please remember that the show is very new and still settling in, but constructive criticisms are always appreciated.

Enjoy and please do send me feedback and corrections, it can only make the show better.  A permanent link to the show's rss feed is listed on the right side of the blog.

--
CafeNinja

This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 United States License.

 ------------------------------------------UPDATE------------------------------
It seems that the mp3 file has ID3 tags processed during the workflow to get it in the feed.  During these steps the original image becomes corrupted.   Here is the original JPEG and I'll work with the production folks to make sure the original mp3 file gets fixed.  Sorry for the problems with the commands, I hope that will work correctly in future episodes.

Tin Foil Hat Show - Episode 001

Well to answer popular demands I am proud to announce my debut podcast episode on the Fuzion Podcast Network. This is my podcast where I will soap-box about digital human rights, personal security and the online age.

The intro show is the only one posted at the moment, and I won't say too much except to ask you all to be patient and give me a few shows to let it settle out.

I look forward to your feedback, you can send feedback for the show to tinfoilhatshow@gmail.com or you can contact me by any of the other methods listed here on this blog.

In the show I mention that there would be a couple of commands shared on this post. So in closing, I just want to say to use the following commands to get at the show notes. The number on the text file should change with each episodes, but it will be the only mystery text file in the directory after the other two commands.


eyeD3 --write-image=./ $Filename.mp3
steghide extract -sf FRONT_COVER.jpeg
less tfh-00X.txt

Enjoy and please do send me feedback and corrections, it can only make the show better. A permanent link to the show's rss feed is listed on the right side of the blog.


--
CafeNinja

This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 United States License.

-----------------------UPDATE----------------------------

It seems that the mp3 file has ID3 tags processed during the workflow to get it in the feed. During these steps the original image becomes corrupted. Here is the original JPEG and I'll work with the production folks to make sure the original mp3 file gets fixed. Sorry for the problems with the commands, I hope that will work correctly in future episodes.

Apple App store - Best news

Well, there was an Apple event and the "Master -o- Disaster" opened that hole under his nose to my own personal delight.

While others rant on about the 2nd usb port on the new Air or the "Jobs Reality Distortion Field"™ I was resting, non-plussed.  Then came my bombshell.

In the next iteration of the Mac OS X operating system they are going to include a lot of IOS4 features including an app store.  Really?!?!?! An app store?!?!?  I think only two things, both I mentally scream at the top of my lungs:  1.) No greater validation of an idea that was birthed in Ubuntu 9.10 (to much ridicule) and 2.) fantastic, they will just give me another avenue to speak to and convert mac-heads.  I can already imagine the pitch line of "An app store, we have had one in Ubuntu for years!" only to see their eyes light up and beg me to install Ubuntu on their old Mac hardware.

Apple, if the best you can do with OS 10.7 is make an app store and copy Ubuntu, BRING IT ON!  I truly used to hold Apple in high regard for their design and user interface features, but this single action has pushed them to the modest position of "even" with Ubuntu and truthfully, a step behind since they had to copy it and there is "prior art".

Long Live Ubuntu.  Thanks Mac.  You are no longer my hero, just my pimp.

--
CafeNinja

This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 United States License.

Fun CLI uses

So if nothing we have learned that command line interfaces are not for novice users, very efficient, loved by CafeNinja and usually very boring and never any fun.

Well that isn't quite true.  I follow one my my favorite sites commandlinefu.com and have in the last few weeks seen some great fun uses of commands that can make anyone look to be a command line ninja with no further training.

The first command that I noticed makes use of a ncurses dialog box.  The command reads like this:

"dialog --gauge "Processing..." 6 40 36"  This defines a progress par that has reached 36 percent with the other numbers being the measure of the progress box.  This doesn't "do" anything, it is stuck in this way and uses no resources, but can make you look quite busy "processing" something.  It looks like the image I've put here.  You make it go away by just pressing Ctrl+C.


The next one make the screen just spew gibberish from the random number generator.  The only "problem" with this one is that it can drive even new processors to spike 100%, even worse than a run away flash page.  I added the "timelimit" command portion to prevent this running on a system that I'm not watching closely.  The command itself is 'cat /dev/urandom | hexdump -d |grep "25"', and will run crazy on your cpu.  My version is : 'timelimit -t120 cat /dev/urandom | hexdump -d |grep "25"'  This looks like this:


There are other commands that can actually make the progress bar count up like "for i in `seq 0 100`;do timeout 6 dialog --gauge "Install..." 6 40 "$i";done"  which like the first command is only making a dialog box that ins't really doing anything besides counting.  Look for your favorite and post them back here.  I bet we can make a small collection that if launched and run in an individual Terminator tab could always make you look diligent and beat the crap outta any "Boss key".

--
CafeNinja

This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 United States License.

Distro Review: Crunchbang 9.04 + 10 Alpha 2

My review of Crunchbang Linux (herefore referred to as "#!" for ease of typing).  I did manage in the same 48 hour period try and use #! 9.04, 9.04-lite and 10-Alpha2.

The story begins with looking for a smaller footprint distro to put on my son's Asus eeepc 700 which has a dead SSD and is using a 4gb class 4 SD card as a hard drive.

Looked at a few and recalled "Crucheee" (I remembered the name being funny) so I went to look at the Crunchbang website.  Where I read that the old CrunchEEE distro was based on 8.10 (following the Ubuntu numbering scheme for which the distro was based) and that the current #! 9.04 had all the support for the EEE built in.  As I arrived at the download page I noticed the "lite" version and saw it was a smaller iso file.  So I grabbed that, put it on a usb key and installed it.

It runs great.  With the low memory footprint and smaller app selection the bottle neck of read/write speed to the SD card is not a huge issue once applications are open.  So the verdict:

✔ #! 9.04 Lite on eeepc 700 = Awesome, Fantastic and more.

Then I saw there was a "full" version and though, hey, I have VM space.  Let's take that for a spin.
I put it in, same experience with the wonder and grace of the full graphical install of Ubuntu, the software repo's available and a wonderful default configuration for Openbox I was very impressed.   So the verdict was:

✔ #! 9.04 Full in VirtualBox = Way Cool. Great Interface, a real treat.



So, I'm realizing that these versions are based on a distro nearly a year old and I think to myself, what would be better would be a newer version, with more current repo's and all the other updates.  So I return to the #! website to discover there is a "unstable" version.   Enter #! 10 Alpha 2 "Statler".  So I just did the sane thing and installed this over top of the #! 9.04 Full Vbox install.  Of great importance is to know that the new version of #1 (10) is based on Debian Testing (Squeezy).  This changed the rules for the installer (text and blah, but not impossible) and the first impression was the same as with #! 9.04, in fact the conky impression the menu's and most other things didn't change (in the Openbox version) from #! 9.04 -> 10.  The #! team has done well to make that experience so similar that the difference is almost unnoticeable.   Until you go to install chromium-browser from the repos which was removed 1 month ago from the "testing" branch of Debian.  If you can't tell by the tone, that's a fail.  There were 3 deb packages that I tried to install from the net (binary blob stuff) all failed on Debian that installed just fine under the Ubuntu 10.10 install I have right next to it.  Verdict of #! 10 Alpha 2:

× #! 10 Alpha 2 in VirtualBox = meh.

Total Summary,  I'm on a personal quest to install Ubuntu 10.10 add Openbox and "borrow" the default Openbox config files from a #! 9.04 Full install.  That way I get the awesome interface on the software/distro platform that offers me a large software repo, comfort zone (used since 2006) and keeps me on the distro that I recommend to folks (eating my own dog food).

--
CafeNinja

This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 United States License.

Ubuntu Countdown to 10.10

With the impending release of the next version of Ubuntu come the normal countdown banners.  I'm no exception to the long list of folks who eagerly await each new release.

While at the moment I am not aware of any must have feature, I have been quite happy with the incremental improvements from version to version.  I must confess though that the 10.10.10 countdown to so many things commercial is starting to wear on my nerves, but this is one countdown that I think is worth watching out for.

While I won't do a pre-release distro review of Ubuntu 10.10, I will be doing a post release since I have to upgrade all the systems in my home at the same time, so please come back for the full write-up.

--
CafeNinja

This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 United States License.

App Review (Update) : tty-clock - working on Ubuntu

Previously I mentioned an app called tty-clock.  I really do like it, but on Ubuntu it didn't quite compile nice so I thought I would give the quick "howto" get it working.

1.) Grab source code and unpack
2.) install the dependencies with "sudo apt-get install ncurses-dev ncurses-runtime ncurses-term"
3**.) Optional--Open the Makefile in the source code folder and change the $INSTALLPATH=/usr/bin/
4.) Terminal in the source code directory and do "make" (should have no errors) and then "sudo make install".

After that the tty-clock should be accessible.   For your information I use the flags to display seconds, center the time and set the color to blue.   Looks like "tty-clock -s -c -C 6" and I hope that might help you get it working on your Ubuntu system.   I've added a screen grab of my clock so you can see what the command does output.

--
CafeNinja

This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 United States License.

Podcast: Guest appearance on Kernel Panic Oggcast eps. 14

I have been honored this last weekend to participate on the Kernel Panic Oggcast Episode 14.  This podcast is one of the forked oggcasts from the former Linux Cranks Oggcast which I have reviewed previously.  On the panel were Azimuth, threethirty, jlindsay, Dann, and the notorious Peter64.

The new Kernel Panic Oggcast keeps in a very similar vein as the old Linux Cranks Podcast by topics and discussions.  It has been and still remains safe for work.  I have to say that I have quite a bit of respect for everyone who was on the panel and I had a great time.

With most topics on the news and issues of the day there is good friendly banter with the nice mix of inter-cultural vocabulary and references to things being upside down in Australia.  All taken in good fun it is always a relaxing conversation with this crew and on more than one occasion they have caused me to open a browser and download and try some new software package.

The panel was in good form, we had some great discussions on there and I really do hope to visit with the guys again in the future, even though it meant I had to be up at 04:00 on a Sunday morning.  Tune in and listen for the hint of things to come. 

Listen, enjoy, tell me what you thought of the show or the podcast overall.

--
CafeNinja

This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 United States License.

Tip: Googlemail -> Gmail

If you were one of the folks who signed up at Gmail when the domain assignment was "@googlemail.com" visit your settings page right away.  I found a link there that converted mine to a genuine "@gmail.com".   You can find that link under Settings->Accounts and Import->Send mail as..->hyperlink to the right that asks "switch to @gmail.com"

While most of us knew that if you wrote to the @gmail.com domain with your @googlemail.com user it would forward and work, but your official login was always with the complete domain name.  All of that get's fixed with this click and all the software and apps out there that aren't ready to read in the @googlemail.com domain will work for you.

Check your account and get your free upgrade to the @gmail.com domain today!

-- CafeNinja

This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 United States License.

Distro Review - Arch Linux

I have now given Arch Linux a "fair shake" and while I have not tried to use it as a substitute on my office workstation yet (I will be doing that in the coming week) I did spend a solid 4 days using it exclusively.

Verdict:

======

I would install this on a non-production machine or older machine and be very happy with it.  I was completely impressed with it's speed which I blame on every bit of code being compiled on install.  I was moderately impressed that between official repos and the AUR I was able to find 99% of the software I was looking for.  I would not recommend this to any new Linux user but would happily recommend it to anyone with some Linux experience under their belt.  The Arch Wiki was truly impressive for content.

I need to preface my tone with the declaration that I completely expected to not enjoy Arch very much.  I am an Ubuntu user now for quite a few years and while that might upset some, it is my pragmatic step to ensure that I have ease of use, a vast repository, and an enormous community.  This article is just my opinion.  It is in layman's terms and isn't trying to be the technical digest of the Linux community.  

It was after a phone call with one of my friends that has fallen completely in love with Arch that I thought to give it another try.  I don't normally have a lot of time to review full blown distros just because to learn their quirks and getting to really know a system I feel takes more time than I normally have to spare for that kind of activity.

I like Arch, and that is my official declaration.  Official repos plus community maintained.  Automatic dependency resolution while compiling all apps in real time.  This is a great cross of the speed/performance increases you normally see with a Slackware (custom compiled) system but with the software management ease of apt-get or aptitude.

In fairness, the repo's aren't as large as Ubuntu.  But most of my needs were found in the official or community repos.  There were only a few apps where source installation was needed.  I also must give great credit to the Arch Wiki.  While not  the prettiest wiki I've ever seen, the documentation on it is accurate and complete.  Any reasonably experienced Linux user could follow the guides that are online at the wiki and have no issue using the system (command line time required).

The speed is insane.  On a VM using 1/4th of the system resources, large apps (i.e. OpenOffice.org) opened in order of magnitudes faster than on the native OS and hardware.

--
CafeNinja

This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 United States License.

Command Line Time - tty-clock

I was playing around with Arch Linux (another blog post soon to follow) and I found a neat little cli application.  I should say "cute" instead of neat.  I should also put this application find in the context in which I use it.

The find is tty-clock, it is a simple digital clock with only a few options.  In my daily pattern I have terminator open with multiple screen sessions to multiple servers.  In each of the screen sessions I'm using the byobu (formerly known as screen-profiles) to give myself a "taskbar" for the screen sessions.  This app, is then just one horizontal and vertical split in a screen filled with terminator with many tabs and splits already.  and it just means that without squinting, I can actually see the time.

This is what tty-clock looks like in action.  With just large Atari 2600 generation 8-bit color and date display centered in the open terminator split it is simply understated and serves it's purpose.  ->

I did also find binclock.py which is an executable script and while it serves the same purpose is the binary clock version.  After downloading, just set the python script to executable and put it in your path (/usr/bin/ or so) and run it. So yet one more split with even more time telling fun.






I do want to give all the credit to the links I found these gems at, I was for the most part cruising and looking for Arch Linux stuff and I came across this stuff.  So I found these apps by looking through K.Mandla’s blog, and Yu-Jie Lin's feedburner got me some other stuff.  Seems they are cli junkies like me.

--
CafeNinja

This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 United States License.