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• How can I implement full disk encryption for a disk containing Ubuntu with plausible deniability?

  - by Rupert

  I would like to have a disk that: has Ubuntu installed is fully encrypted is setup in such a way as to make denial of the existence of the Ubuntu install plausible Truecrypt provides the last two features but only for Windows: http://www.truecrypt.org/docs/?s=sys-encryption-supported-os The alternate installer for Ubuntu provides the first two features but not the last. I imagine that plausible deniability would be achieved by, at least: Having two installs of Ubuntu and 2 passphrases (or keyfiles) which would unencrypt each one. Moving any unencrypted data (such as /boot) onto a USB stick Are there any programs out there which support this feature set for Ubuntu?

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• Writing a spell checker similar to "did you mean"

  - by user888734

  I'm hoping to write a spellchecker for search queries in a web application - not unlike Google's "Did you mean?" The algorithm will be loosely based on this: http://catalog.ldc.upenn.edu/LDC2006T13 In short, it generates correction candidates and scores them on how often they appear (along with adjacent words in the search query) in an enormous dataset of known n-grams - Google Web 1T - which contains well over 1 billion 5-grams. I'm not using the Web 1T dataset, but building my n-gram sets from my own documents - about 200k docs, and I'm estimating tens or hundreds of millions of n-grams will be generated. This kind of process is pushing the limits of my understanding of basic computing performance - can I simply load my n-grams into memory in a hashtable or dictionary when the app starts? Is the only limiting factor the amount of memory on the machine? Or am I barking up the wrong tree? Perhaps putting all my n-grams in a graph database with some sort of tree query optimisation? Could that ever be fast enough?

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• Tracking logged in vs. non-logged in users in Google Analytics

  - by Justin

  I am building a social media site that is similar is structure to twitter and facebook.com where unauthenticated users who go to https://mysite.com will see a login + sign-up page, and authenticated users who go to https://mysite.com will see their timeline. My question is, what is the best practice (using Google Analytics) for tracking these two different types of users who are viewing completely different content but are visiting the same URL. I tried searching the Google Analytics docs but couldn't find what they suggested for this scenario. Perhaps I just don't know what keywords to search for. Thanks in advance for any help.

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• Apps Script Office Hours - November 9, 2012

  Apps Script Office Hours - November 9, 2012 In this episode Ikai and Eric ... - Plugged the upcoming hackathon in Los Angeles. - Covered the release notes from the past week, which included some great enchancements to the Gmail and Drive services. - Discussed the new Google Cloud SQL integration in Apps Script. - Hyped the upcoming special episode with the creator of the "Google Analytics Report Automation (Magic)" script. - Answered questions about integrating Apps Script with Google Docs and Forms. The schedule of future episodes can be found at: developers.google.com From: GoogleDevelopers Views: 61 2 ratings Time: 31:24 More in Science & Technology

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• Le Marketplace professionnel des Google Apps a un an, sa croissance sur les 12 premiers mois a été de 600 %

  Le Marketplace des Google Apps a un an Sa croissance sur les 12 premiers mois est de 600 % Il y a un an Google lançait sa deuxième galerie d'applications. La première était destinée à Android (l'Android Market), la deuxième à ses Google Apps. Le Google Apps Marketplace possède aujourd'hui plus de 300 applications professionnelles. Le but de cette galerie et de ces applications est de compléter l'offre initiale de Google pour les entreprises. Les Google Apps s'appuient en effet sur les Google Docs (traitement de texte en ligne, tableur, etc.), sur Gmail, sur un agenda partagé, ainsi que sur un ensemble de services en constante évolution (éditeur de blogue, de...

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• Jersey 2.0 Milestone 2 Now Available

  - by arungupta

  Jersey 2.0 milestone 2 is now available. It builds upon the first milestone and adds several new features such as server-side asynchronous processing, server-side content negotiation, improved JAX-RS parameter injection, and several others. The REST endpoints can be published on Java SE HTTP Server, Grizzly 2 HTTP container, and some basic Servlet-based deployments. It also provides HTTPURLConnection-based client API implementation. Read about these and more about what's new in Marek's detailed post. Of course this is also the future reference implementation for JAX-RS 2.0. Feel like trying it out? Simply go to Maven Central (of course none of this is production quality at this point). The latest JAX-RS Javadocs and Jersey 2.0 API docs are good starting points to explore. And provide them feedback at [email protected].

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• Where does Rails get it's datetime for creating records?

  - by gwapEs9

  I have a rails app with a data model called 'jobs' and i'm faced with a critical design choice crossroads. I don't know enough about Rails and it's inner workings to be able to say for sure what I should do despite a complete read of the rails and ruby docs. I want to be able to accurately display the age of a job record in days. So when a customer logs in, they can see that the job they submitted is 'x' days old. Where does a rails app on Heroku get it's time stamps? From Heroku? or the customers system clock? If a customer has a out of date system clock and submits a job, it could really mess up the sorting of their job list, not to mention me the overseer of job records. Any advice out there? EDIT: Just to be clear, i'm not asking how to list jobs by their date, but to which clock does a rails app on Heroku base it's records.

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• How to use Ubuntu Touch manage-address-books.py?

  - by Rotary Heart

  Well I have been reading the docs for a few days and I found that I can "import" my contacts from a .csv file with the following: Alternatively you can import contacts from a csv file. The csv file should be in same format as /usr/share/demo-assets/contacts-data/data.csv. Replace the sample data.csv file with your own version and run manage-address-books.py create to import your contacts. But I can't figure out how to use manage-address-books.py create could anyone help me? I know that I can use syncevolution, but I want to sync my .csv file too.

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• Is there a way to sync my laptop's Ubuntu install with a jumpdrive Ubuntu install?

  - by trezy

  So I'm doing a fresh install of Ubuntu on my laptop right now. I also have a jumpdrive with Ubuntu installed on it with a persistent setup. What I would like is to be able to plug the jumpdrive into my laptop and have the installs sync certain data. I don't want docs and such to sync of course, but I would like some software to sync with installs and updates, mostly security and recovery stuff. Here's an example of what I would like to happen: I already have TestDisk installed on my jumpdrive but I haven't booted the drive in a while. I plug it in to my laptop where TestDisk has been updated and Wireshark has been installed. I would like the jumpdrive to check to see what has changed on the laptop install (in this case TestDisk has updated and Wireshark has been installed) and make those changes to the jumpdrive. Is there any kind of software to do that?

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• Apache FilesMatch regexp: Can it match by the cache buster 10 digit (rails generated) following the filename?

  - by ynkr

  According to the apache FilesMatch docs: The FilesMatch directive provides for access control by filename Basically, I only want to set an expires header for resources that have a 10 digit "cache buster" id appended to the name. So, here is my attempt at such a thing in my httpd.conf <FilesMatch "(jpg|jpeg|png|gif|js|css)\?\d{10}$"> ExpiresActive On ExpiresDefault "now plus 5 minutes" </FilesMatch> And here is an example of a resource I want to match: http://localhost:3000/images/of/elvis/eating-a-bacon-sandwich.png?1306277384 Now obviously my FilesMatch regexp is not matching so I am guessing 1 of 2 things is happening. Either my regexp is wonky or the '?1231231231' cache busting part of the file is not part of what apache considers part of the filename. Can anybody confirm and/or give me a way to cache only those resources that will not persist beyond the next deploy?

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• is this the correct way to use glTexCoordPointer?

  - by RubyKing

  Hey all Just trying to work out how to use this function glTexCoordPointer. Here is the man pages http://www.opengl.org/sdk/docs/man/xhtml/glTexCoordPointer.xml which states that I must set a pointer to the first element of the array that uses the texture cordinate. Here is my array static const GLfloat GUIVertices[] = { //FIRST QUAD 1.0f, 1.0f, 0.0f, 1.0f, 1.0f, 0.0f, -1.0f, 1.0f, 0.0f, 1.0f, 0.0f, 0.0f, -1.0f, 0.94f, 0.0f, 1.0f, 0.0f, 1.0f, 1.0f, 0.94f, 0.0f, 1.0f, 1.0f, 1.0f, //2ND QUAD // x y z w X Y 1.0f, -1.0f, 0.0f, 1.0f, 1.0f, 0.0f, -1.0f,-1.0f, 0.0f, 1.0f, 0.0f, 0.0f, -1.0f,-0.94f, 0.0f,1.0f, 0.0f, 1.0f, 1.0f, -0.94f, 0.0f,1.0f, 1.0f, 1.0, }; But how do I set the pointer correctly? like this glTexCoordPointer(1, GL_FLOAT, 6, reinterpret_cast(29 * sizeof(float)) ); for the fifth element on the 2nd quad first row. any help is thankful

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• Google veut doper l'adoption professionnelle de ses Google Apps avec un réseau de partenaires-revendeurs de plus en plus important

  Google veut doper l'adoption professionnelle de ses Google Apps Et mise sur un réseau de partenaires-revendeurs de plus en plus important Souscrire aux Google Apps for Business est on ne peut plus simple. Il suffit d'ouvrir un compte et un domaine. Les applications hébergées sont alors immédiatement accessibles et fonctionnelles. Cela, c'est pour la théorie. Dans la pratique, ce genre de choix implique très souvent de la part des entreprises une migration (de Outlook et Exchange vers Gmail par exemple), ou une articulation avec l'existant (entre Microsoft Office et Google Docs pour citer un autre exemple fréquent). Se pose alors pour le décide...

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• BIP 11g Dynamic SQL

  - by Tim Dexter

  Back in the 10g release, if you wanted something beyond the standard query for your report extract; you needed to break out your favorite text editor. You gotta love 'vi' and hate emacs, am I right? And get to building a data template, they were/are lovely to write, such fun ... not! Its not fun writing them by hand but, you do get to do some cool stuff around the data extract including dynamic SQL. By that I mean the ability to add content dynamically to your your query at runtime. With 11g, we spoiled you with a visual builder, no more vi or notepad sessions, a friendly drag and drop interface allowing you to build hierarchical data sets, calculated columns, summary columns, etc. You can still create the dynamic SQL statements, its not so well documented right now, in lieu of doc updates here's the skinny. If you check out the 10g process to create dynamic sql in the docs. You need to create a data trigger function where you assign the dynamic sql to a global variable that's matched in your report SQL. In 11g, the process is really the same, BI Publisher just provides a bit more help to define what trigger code needs to be called. You still need to create the function and place it inside a package in the db. Here's a simple plsql package with the 'beforedata' function trigger. Spec create or replace PACKAGE BIREPORTS AS whereCols varchar2(2000); FUNCTION beforeReportTrig return boolean; end BIREPORTS; Body create or replace PACKAGE BODY BIREPORTS AS   FUNCTION beforeReportTrig return boolean AS   BEGIN       whereCols := ' and d.department_id = 100';     RETURN true;   END beforeReportTrig; END BIREPORTS; you'll notice the additional where clause (whereCols - declared as a public variable) is hard coded. I'll cover parameterizing that in my next post. If you can not wait, check the 10g docs for an example. I have my package compiling successfully in the db. Now, onto the BIP data model definition. 1. Create a new data model and go ahead and create your query(s) as you would normally. 2. In the query dialog box, add in the variables you want replaced at runtime using an ampersand rather than a colon e.g. &whereCols.   select     d.DEPARTMENT_NAME, ...  from    "OE"."EMPLOYEES" e,     "OE"."DEPARTMENTS" d  where   d."DEPARTMENT_ID"= e."DEPARTMENT_ID" &whereCols   Note that 'whereCols' matches the global variable name in our package. When you click OK to clear the dialog, you'll be asked for a default value for the variable, just use ' and 1=1' That leading space is important to keep the SQL valid ie required whitespace. This value will be used for the where clause if case its not set by the function code. 3. Now click on the Event Triggers tree node and create a new trigger of the type Before Data. Type in the default package name, in my example, 'BIREPORTS'. Then hit the update button to get BIP to fetch the valid functions.In my case I get to see the following: Select the BEFOREREPORTTRIG function (or your name) and shuttle it across. 4. Save your data model and now test it. For now, you can update the where clause via the plsql package. Next time ... parametrizing the dynamic clause.

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• Apache Virtual Host setup not working?

  - by user214243

  I had follow this link to setup my first virtual host with apache2 under ubuntu 12.x. Looks easy but is not working. [How to][1] My internal dns can resolv the name, but my browsers is not showing me my webpage. from my lan, Im using ubuntu server no GUI. Every time I point to my virtual host name, I receive apache default page, I cannot see my custom page. My docs are under /home/mydomain/public_html This is my settings: ServerAdmin webmaster@localhost ServerName example.com DocumentRoot /home/example.com/public_html Options FollowSymLinks AllowOverride None Options Indexes FollowSymLinks MultiViews AllowOverride None Order allow,deny allow from all The rest of the file is the same. No, I even try to change the port from *:80 to *:81, restart and don't see apache listen to port 81. My localDNS running in other machine works. What I forget?

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• UIDocumentInteractionController in iOS for Whatsapp Integration

  - by Smitha

  I was looking for a way to share my application created files through Whatsapp. I found we can chat using custom URL scheme provided by whatsapp : https://www.whatsapp.com/faq/iphone/23559013. But, to share files of my app, read that I have to use DicumentIntercationController. So, is there any smaple available? Also, when I read about apple docs, it says, "Create an instance of the UIDocumentInteractionController class for each file you want to interact with" (https://developer.apple.com/library/ios/documentation/FileManagement/Conceptual/DocumentInteraction_TopicsForIOS/Articles/PreviewingandOpeningItems.html#//apple_ref/doc/uid/TP40010410-SW1). So is it necessary to create instance for each file? I just want to share the files as and when i receive it through my service to my app. Thanks for the help in advance.

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• Multiple Passwords on One Account

  - by user110789

  I'd like to join three ideas into one interesting and sometimes useful feature. There was a question about using multiple passwords earlier this year, but it didn't receive much attention. I'd like to ask the question again after showing an interesting and new way to use the feature. The three original posts I found to be interestingly combined were: (1) Multiple passwords per user (2) http://blog.littleimpact.de/index.php/2009/09/14/automatic-encryption-of-home-directories-using-truecrypt-62-and-pam_exec/ (3) http://www.truecrypt.org/docs/hidden-volume Basically I'd like to login to my account with two passwords and depending on the password I use, I would get a different content in my home directory. In a way I would get a cryptographically hidden account into my system. So the question is, is it possible to allow multiple passwords to log on to Ubuntu/Linux for the same user?

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• What should be learned for someone starting in Android Games?

  - by user14544

  I know this might be a little subjective. But I've read the other questions. A lot of answers kept on popping up like to use box2d, libgdx, andEngine, etc. So the real question is, what would be the best to start off with as a beginner. I have some experience with java code, just by reading about in the Oracle Docs. I've gone through Flash and Eclipse. When i mean gone through, i don't mean i have actually created my own game from Flash or Eclipse, but i just learn things here and there. Currently I'm reading Beginning Android for Beginners but I don't have the knowledge to implement my own Ideas into the game tutorials because of lack of experience. I'm looking for a way to learn how to program to create games for Android. While at the same time get experience from programming. I do not want to learn those drag and drop game making applications such as GameMaker.

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• Google Drive : une version pour iOS s'attaque à iCloud, un nouveau SDK et un mode hors-ligne pour Chrome sont disponibles

  Google Drive : une version pour iOS s'attaque à iCloud Un nouveau SDK et un mode hors-ligne pour Chrome sont disponibles Tout comme Chrome (disponible pour iOS) et tout comme les Google Maps (accessible hors-ligne sur Android), Google Drive ? le service de stockage qui chapeaute à présent Google Docs ? est disponible offline et sur les terminaux mobiles d'Apple. Hors-ligne. Ce qui signifie que l'utilisateur peut « créer et éditer des documents ou laisser un commentaire. Tous les changements seront automatiquement synchronisés dès que vous vous r...

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• SSL on multiple directories

  - by Shredder

  I have a website that is http, but has a port set up for https for a specific directory that is for the shopping cart. Now I'd like to use our SSL on a different directory in the same site as well. How can I go about configuring that? I have tried looking into all of the config files as well as the docs and cannot figure it out. I tried setting this in httpd.config as well <VirtualHost 127.0.0.1:[ssl port]> #also tried *:[ssl port] and [actual IP]:[ssl port] ServerAdmin [email protected] DocumentRoot "C:/path/sslNeededDir" ServerName www.example.com </VirtualHost> hoping that it would cause pages in this directory to use ssl port and become https, but that didn't do anything. Any help is greatly appreciated. Update: This finally got migrated over. I'm still looking for a solid answer on this. If anyone could help me, it would be greatly appreciated.

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• JavaFX 2.2.4 Documentation

  - by user12610255

  JavaFX 2.2.4 and JDK 7u10 were released on Tuesday. In addition to the release documentation, the following new information is provided: A new document, Using the Image Ops API, describes how to read and write raw pixel data to and from JavaFX images. The Handling JavaFX Events document has been updated with more information on touch events. The Working with Touch Events chapter and Touch Events sample provide information about handling individual touch points to provide sophisticated responses to touch actions. The Implementing Best Practices document has been updated to include information about running tasks on background threads. The Troubleshooting section of Deploying JavaFX Applications now includes a section about disabling the automatic proxy configuration in your application code. Other documents were updated to reflect minor bug fixes. You can download JavaFX 2.2.4 from OTN. For all tutorials and API documentation, see http://docs.oracle.com/javafx.

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• Is this a reliable method of parsing glGetShaderInfoLog()?

  - by m4ttbush

  I want to get a list of errors and their line numbers so I can display the error information differently from how it's formatted in the error string and also to show the line in the output. It looks easy enough to just parse the result of glGetShaderInfoLog(), look for ERROR:, then read the next number up to :, and then the next, and finally the error description up to the next newline. However, the OpenGL docs say: Application developers should not expect different OpenGL implementations to produce identical information logs. This makes me worry that my code may behave incorrectly on different systems. I don't need them to be identical, I just need them to follow the same format. So is there a better way to get a list of errors with the line number separate, is it safe to assume that they'll always follow the "ERROR: 0:123:" format, or is there simply no reliable way to do this?

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• Google Drive pour mobiles permet d'éditer les feuilles de calcul et de les créer directement depuis l'application iOS et Android

  Google Drive : une version pour iOS s'attaque à iCloud Un nouveau SDK et un mode hors-ligne pour Chrome sont disponibles Tout comme Chrome (disponible pour iOS) et tout comme les Google Maps (accessibles hors-ligne sur Android), Google Drive ? le service de stockage qui chapeaute à présent Google Docs ? est disponible offline et sur les terminaux mobiles d'Apple. Hors-ligne. Ce qui signifie que l'utilisateur peut « créer et éditer des documents ou laisser un commentaire. Tous les changements seront automatiquement synchronisés dès que vous vous ...

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• Basic/research RTS engine/model

  - by XTF

  Does a basic/research RTS engine/model exist that can be used as a basis for further experimentation/research? I'd like to avoid reinventing the wheel if possible. I'm aware of Spring Engine and Stratagus, but those are real game engines and may not be the best to experiment with and learn from. Ideally the docs for the model would answer questions like: How exactly do units move? (constant velocity? constant acceleration? constant force?) How is pathfinding handled? Does every grid cell become an A* graph node (may be expensive)? Does it consider threats? How are groups handled? (w.r.t pathfinding and movement) How is combat handled? I'm mostly interested in the low-level model details (for now), not the graphics etc. I've read a lot of the other quesions (and answers/references) tagged RTS but I haven't found my answer yet.

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• Les Google Apps veulent se positionner en concurrent de Sharepoint, Gmail passe les 425 millions d'utilisateurs

  Les Google Apps veulent se positionner en concurrent de Sharepoint Gmail passe les 425 millions d'utilisateurs Parmi les nombreux chiffres donnés sur ses différents produits, Google en a mis deux particulièrement en avant : ceux de ses Web Apps et de sa messagerie. Lancée en 2004, la messagerie Gmail possède aujourd'hui 425 millions d'utilisateurs. Un bon résultat. Surtout si on lui ajoute 5 millions de client "business" qui utilisent les Google Apps (en résumé Gmail + Google Docs) comme par exemple la compagnie aérienne européenne KLM. Mais cette annonce a surtout été l'occasion pour Sundar Pichai, vice-président de Google, de s'attaquer à son conc...

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• Ikoula débride sa solution de stockage en ligne : espace et trafic illimités pour concurrencer DropBox, Google Drive et Skydrive de Microsoft

  Ikoula débride sa solution de stockage en ligne Espace et trafic illimités pour concurrencer DropBox, Google Drive et Skydrive de Microsoft iKeepinCloud gagne en maturité. Le service de stockage en ligne de la société française Ikoula ? dont les datacenters sont basés à Reims ? bénéficie à présent d'un espace et de trafic illimités et de 10 Mbps en upload/download. Les documents hébergés n'ont par ailleurs pas de taille maximale imposée. Le tout pour une vingtaine d'euros par mois. L'alternative à Google Docs, SkyDrive et autres DropBox n'est certes pas encore aussi populaire que ses concurrents mais la géolocalisation des données et son ouverture sont deux arguments qui convaincra...

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