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• Weird keyboard problem

  - by Sebastian

  I just installed Ubuntu on an Acer Extensa 5620 laptop. The keyboard works fine except when I want to type things that require me to use Ctrl+Alt+(any key). I can't use Ctrl+Alt+(any key) shortcuts in any program, but I can open terminal with Ctrl+Alt+T. Ctrl+(any key) and Alt+(any key) shortcuts seems to work though. Also I just installed the game Heroes of Newerth and neither Alt or Ctrl keys seem to work in the game. Any answer would be appreciated!

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• Is the Windows Start button an example of poor mapping? [migrated]

  - by user336359

  In my recent course on HCI, I've been told that start button on Windows systems is an example of poor mapping. The reason for that, as explained in materials, is that it doesn't start anything, but rather reveals a menu. I think that this is only valid if you approaching this from low level of abstraction (meaning that the button must start something). If you on the other hand take a view on this from higher level of abstraction, as of "Place where I start most of my tasks", i.e. This is the place where you are start*ing the task of switching off your computer This is the place where you are start*ing the task of searching for something on your computer This is the place where you are start*ing the task of running a program This is the place where you are start*ing the task ... Then I think it makes perfect sense and has perfect mapping. Is this a sensible interpretation?

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• Most standard / Best way to keep the same top menu among different web pages?

  - by jsoldi

  What's the standard way to keep the same menu on top among different web pages without having to duplicate it on each page (I don't mean that it doesn't reload like when using frames and only loading the bottom part; I want the menu to scroll with the page when scrolling down, like this, this, this and pretty much every single web page that exists). I found this answer but the guy can't use Php and I can. Plus, I see several people giving different suggestions, but I assume there is a standard since pretty much every single web page in the whole web have a menu on top that stays the same among multiple pages . I'm just a newbie on web design (I can program Php and Html easily but I have no idea about standards and stuff like that since I'm self-taught guy ;)). What I would normally do is to include the menu with php but I'm not sure if this is the "standard".

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• Hadoop:Only master node does the work

  - by user287722

  I've setup a Hadoop 2.2 cluster with 1 master node(namenode and secondary namenode) and 3 slave nodes(datanode and namenode on each one).All of the machines use Linux Mint 64bit. When I run my MapReduce program, writen in Java, I can only see that master node is using extra CPU and RAM. Slave nodes are not doing a thing. I've checked the logs from all of the namenodes and there is nothing wrong with the namenodes on slave nodes. Resource Manager is running and all of the slave nodes can see the Resource Manager. I used this http://n0where.net/hadoop-2-2-multi-node-cluster-setup/ tutorial to configure my nodes. Datanodes are working in terms of distributed data storing but I can't see any indication of distributed data processing. Do I have to configure the xml configuration files in some other way so all of the machines will process data while I'm running my MapReduce Job?

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• Java ME JSRs approved by the JCP EC

  - by heathervc

  The two new Java ME related JSRs were submitted to the JCP earlier in October have been approved by the Executive Committee (EC) to continue development in the JCP program.  These JSRs are now open for Expert Group nominations. All registered JCP.org users can nominate themselves to serve on the JSR Expert Group, but you must become a JCP Member to be approved to serve on a JSR Expert Group. JSR 360, Connected Limited Device Configuration (CLDC) 8, was approved by the EC with 11 yes votes (AT&T was not eligible to vote).  You can also follow this project on their java.net project. JSR 361, Java ME Embedded Profile, was also approved by the EC with 11 yes votes (AT&T was not eligible to vote).  You can also follow this project on their java.net project. 11 yes votes

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• Please help, mounting other partitions on startup [duplicate]

  - by Kongthap

  This question already has an answer here: Is there a program to mount all of my drives automatically? 2 answers These are my all partitions. This is my /etc/fstab I would like to auto mount sda3 (NTFS), sda6 (ext4), sda7 (ext4) on startup, please help me edit the /etc/fstab file. I've searched for GUI way of doing this but I cannot find pysdm on the software center. Thanks. Edited!!! I've edited fstab as shown in the picture, I got error during booting, please help me find out what went wrong. P.S. I've created /mnt/extdisk1, I copied and pasted the UUID so it was not misspelling.

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• Should we design programs to randomly kill themselves?

  - by jimbojw

  In a nutshell, should we design death into our programs, processes, and threads at a low level, for the good of the overall system? Failures happen. Processes die. We plan for disaster and occasionally recover from it. But we rarely design and implement unpredictable program death. We hope that our services' uptimes are as long as we care to keep them running. A macro-example of this concept is Netflix's Chaos Monkey, which randomly terminates AWS instances in some scenarios. They claim that this has helped them discover problems and build more redundant systems. What I'm talking about is lower level. The idea is for traditionally long-running processes to randomly exit. This should force redundancy into the design and ultimately produce more resilient systems. Does this concept already have a name? Is it already being used in the industry?

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• Thank You MySQL Connect Content Committee Members

  - by Bertrand Matthelié

  Yesterday we announced the publication of the MySQL Connect Content Catalog. We would like today to thank the MySQL Connect Content Committee members, and especially our external members, for their efforts helping us to build the best possible MySQL Connect program. The Call for Papers had generated a large number of great submissions (thank you all for that!) and it was indeed a tough job to select sessions among those. So thank you very much, Sheeri, Erin, Giuseppe, Calvin and Yoshinori! Your input has been invaluable. Learn more about MySQL Connect (San Francisco Sept 21-23). Register Now and Save US$500 with the Early Bird Discount.

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• What can i do if i made a bootable usb stick, but it doesn't work properly?

  - by eff

  Currently i have ubuntu 11.10 as an os and i want ubuntu 12.04 lts. I made a bootable usb stick with the program 'startup disk creator'. Everything went well (i choose the language, and then i choose ' install'), the purple screen with the title 'ubuntu' come up, it started loading too. After a time black screen come up with white letters last sentence was something like: panic occured, switching back to text. I tried it several times, the same thing happens. i tried to click on ' trying ubuntu from usb too, but it didn't work either . Please help me!

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• How to Install Xampp on Windows XP

  To begin, visit the XAMPP for Windows home page, located at: http://www.apachefriends.org/en/xampp-windows.html. You will have several options for which flavor of XAMPP you wish to install, including the Installer, Zip, and 7zip versions. For simplicity's sake, this tutorial will use the simplest method: the installer. Click on the Installer link and you will be redirected to the program's SourceForge page. You may get a pop-up like the one below; if so, click Run: Next, you will be prompted to choose an installation language. Choose English (or whichever language you wish) and click the quo...

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• Installing g77 in Ubuntu 12.04 LTS (32bit)

  - by pksahani

  I am using Ubuntu 12.04 LTS (32bit-i386) in my desktop PC. I need g77 compiler for some specific applications. The app can only be installed after having g77 compiler. This specific app is designed based on g77 fortran compiler and can't be used with gfortran which is the standard available compiler in 12.04 LTS. And guide me the procedure to install g77 in 12.04. I have been trying apt-get update & apt-get install g77 after changing the sources.list file. After processing I am able to install g77 but when i try to compile a fortran program, it shows error /usr/bin/ld: cannot find crt1.o: No such file or directory /usr/bin/ld: cannot find crti.o: No such file or directory /usr/bin/ld: cannot find -lgcc_s collect2: ld returned 1 exit status Please help me. I m struggling a lot to fix this.

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• What is the best strategy for licensing a desktop application using a web service, when all I need to know is when people use the product?

  - by user1667022

  Our company's main application is a desktop program that is used at warehouses and written in C# and Windows Presentation Forms. The next thing we want to be able to do is track when customers open up the application and when it is being used. The reason for this is so we can charge them per month, based on if they are/arn't using the application. My boss is having me research different ways to "license" the product under these requirements. Not having any experience doing this, a few things come to mind. I could create a web application that runs on a server, and every time the desktop application is opened and the user logs in, the application connects to the server and marks a database with the DateTime. Or is there licensing software that I can use to accomplish this? Just looking for tips/advice from people who have experience with this type of stuff.

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• DataTable to Generic List Conversion

  using System;using System.Collections.Generic;using System.Linq;using System.Data;namespace ConsoleApplication1{ class Program { static void Main(string[] args) { DataTable table = new DataTable { Columns = { {"Number", typeof(int)}, {"Name", typeof(string)} } }; //Just adding few test rows to datatable. for (int i = 1; i <= 5; i++) { table.Rows.Add(i, "Name" + i); } var returnList = from row in table.AsEnumerable() select new MyObject { Number = row.Field<int>("Number"), Name = row.Field<String>("Name") }; //Displaying converted collection foreach (MyObject item in returnList) { Console.WriteLine("{0}\t{1}", item.Number, item.Name); } } } class MyObject { public int Number { get; set; } public String Name { get; set; } }} span.fullpost {display:none;}

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• Rotate Rigged and Animated Scene?

  - by Nick

  I have a rigged and animated mesh that I need to import into Unity. We several characters that all use the same script, and access their bones to do procedural animations as well. The problem is that the new model I was given is facing the wrong way. Instead of facing forward, the model is facing the right.. Is there any way to rotate the model with it's animations without screwing it up, so that it will import properly in unity facing forward? Because of the way it was done, selecting everything in the scene and just rotating it by 90 degrees ruins some of the animations, so I need a program that can fix this.

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• Mulitple processes aware of each other

  - by Abhan

  Hope you can help me with this, I've searched a lot and I got really confused of what to do here. I'm building a program in C and I need to run it multiple time as I need. So it's going to be like below, process 1 handle all rows on DB table test where process_flag=1 process 2 handle all rows on DB table test where process_flag=2 process 3 handle all rows on DB table test where process_flag=3 and so on How can I make the processes aware of each other, so if process 3 goes down then processes 2 & 3 start working on process_flag=3?

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• calling methods if previous call success

  - by New Developer

  I my c# program I have to perform 5 steps(tasks) sequentially. basically these five should execute one after the other only the previous task performed is success. Currently I have done it in following style. But this is not very good code style to follow. var isSuccess=false; isSuccess=a.method1(); if(isSuccess) isSuccess=a.method2(); if(isSuccess) isSuccess=a.method3(); if(isSuccess) isSuccess=a.method4(); if(isSuccess) isSuccess=a.method5(); How can I re factor this code. What is the best way I can follow?

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• Safest way (i.e. HTTPS, POST, PGP) to send decryption keys through the web?

  - by theGreenCabbage

  I am in the final stages of development for my Revit plugin. This plugin is programmed in C#, and distributed via a DLL. One of the DLLs is an encrypted SQLite database (with proprietary data) that is in the form of a DLL. Currently, in development stages, the decryption key for the SQLite database is hardcoded in my main DLL (the program's DLL). For distribution, since DLLs are easily decompilable, I am in need of a new method to decrypt the DLL. My solution is to send our decryption keys from our servers securely to the host's computer. I was looking in POST, thinking it was more secure than GET, but upon research, it appears it's similarly insecure, only more "obscure" than GET. I also looked into HTTPS, but Hostgator requires extra money for HTTPS use. I am in need of some advice - are there any custom solutions I can do to implement this?

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• An Annotated Line of Business Application

  The Silverlight HyperVideo Player  has met with strong support and interest. This mini-tutorial is the first in a series that will walk through the design and delivery of this project. This series will pretend that the design existed before we began coding, and will not take you through its evolution over the months between December 2009 and March 2010. In short, this series is a drop-line exercise highlighting how the program works with a focus on teasing out general principles of creating...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• Triple Monitor Setup with Nvidia and Compiz

  - by AndrewX192

  I have a triple monitor setup with two video cards on Ubuntu 10.04. I have the monitors and graphics cards currently setup as follows: Nvidia Geforce 210 #1 - 1920x1080 Monitor (Twinview) [Center - Monitor #1] - 1920x1080 Monitor (Twinview) [Right - Monitor #2] Nvidia Geforce 210 #2 - 1920x1080 Monitor (Separate X Screen) [Left - Monitor #3] This works fine, except when I open a program, it shows up in between monitor #1 and #2 - meaning I have to drag it to one screen before I can use the window. Gnome2's gnome-panel also does not work on the twinview setup; it spans between both monitors, but it does not redraw (ex: the clock never changes). In addition, when I maximize an application, it spans both monitors, which is not acceptable. When I enable Xinerama for my setup, gnome-panel no longer spans two monitors, and applications maximize as expected, but compiz does not work, as X11 compositing is not available. The lack of desktop compositing causes problems with dragging windows between screens (redraws take forever). Is there anything I can do to fix these issues without opting for different graphics cards?

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• Where are the values of java.library.path being set?

  - by lmestre

  This one could be a WebLogic Server question, but this post is general for any java environment.We were getting  at the very beginning  java library path something like this: /home/lmestre/jdk1.6/jre/lib/amd64/server:/home/lmestre/jdk1.6/jre/lib/amd64:/home/lmestre/jdk1.6/jre/../lib/amd64So, the question was: Where WebLogic Server is setting java.library.path?I never found the answer, so why don't we try to try to answerWhere the JVM is setting java.library.path?public class LibraryPathPrinter {   public static void main(String[] args) {       String javaLibraryPath= System.getProperty("java.library.path");       System.out.println("java.library.path "+javaLibraryPath );   }}after a simplejavac LibraryPathPrinter.javaand then an easyjava LibraryPathPrintervoila!The program printed something like thisjava.library.path  /home/lmestre/jdk1.6/jre/lib/amd64/server:/home/lmestre/jdk1.6/jre/lib/amd64:/home/lmestre/jdk1.6/jre/../lib/amd64So the JVM was the culprit.Enjoy!

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• Why do I need to republish a file when I update it?

  - by user13089

  The story is: I am coding a program and at the same time, i want to share it with my group members using ubuntu. They don't have an Ubuntu One account and what I do is to publish the file and my friends just get the link and the file. But, strangely or not, every time I upload a new version of this file (I add more code and save it), the used link seems to be "outdated" and I need to publish the same file again and to get a new link every time i modify the same file. Couldn't it be possible to save a new version of your file and the same link just "points" to the newer version?

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• Tracing and blocking ip's

  - by Mark

  I was wondering if there is anyway you can block or exclude people from submitting multiple fake ip's online . For example I have a google pay-per-click campaign set up on adwords. I downloaded a program in minutes which enabled me to hide or give out a fake ip address which also allows you to use a different ip each time. I tried this out on my own link on google which in turn got through adwords and I was charged for the click. My question is how would you be able to counter or block someone who continuosly clicks on your link with a different fake ip each time?

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• 10th Annual JCP Award Winners Announced

  - by heathervc

  The 10th JCP Annual Awards were presented in three categories yesterday evening at the JCP Party during JavaOne.  Congratulations to the winners and the nominees for the contributions to the Java Community! JCP Member/Participant of the Year London Java Community and SouJava For their historic contribution to the Adopt a JSR program and supporting Java developers through the JCP. Outstanding Spec Lead Victor Grazi, Credit Suisse, (JSR 354, Money and Currency API) For his dedicated, focused expertise in solving issues representing Money and Currencies. Most Significant JSR JSR 348, JSR 355 and JSR 358, JCP.Next, These three JSRs will set the direction and procedures for the next-generation JCP. You can view profiles of all the nominees on jcp.org.

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• All traffic is passed through OpenVPN although not requested

  - by BFH

  I have a bash script on a Ubuntu box which searches for the fastest openvpn server, connects, and binds one program to the tun0 interface. Unfortunately, all traffic is being passed through the VPN. Does anybody know what's going on? The relevant line follows: openvpn --daemon --config $cfile --auth-user-pass ipvanish.pass --status openvpn-status.log There don't seem to be any entries in iptables when I enter sudo iptables --list. The config files look like this: client dev tun proto tcp remote nyc-a04.ipvanish.com 443 resolv-retry infinite nobind persist-key persist-tun persist-remote-ip ca ca.ipvanish.com.crt tls-remote nyc-a04.ipvanish.com auth-user-pass comp-lzo verb 3 auth SHA256 cipher AES-256-CBC keysize 256 tls-cipher DHE-RSA-AES256-SHA:DHE-DSS-AES256-SHA:AES256-SHA

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• Client-Side V.S. Server-Side Searching?

  - by user70278

  I am currently helping to design a web site and application in HTML. We would like the user to be able to search the site/app for desired content via a search bar. We would also like to include an advanced search ability to allow for different search options and more concentrated searches. We are having trouble deciding whether to program the search function on the Client-Side (with JavaScript) or on the Server-Side (with PHP). What are the pros and cons of both and what would you recommend?

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