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• How will Deja-Dup operates when backing up to an external USB drive?

  - by Little Bobby Tables

  I want to set up regular backups, and deja-dup seems like a nice tool. However, I want to put my backups on an extension USB drive that I have, not on a remote network location. Naturally, this drive is not always connected. If I configure deja-dup to backup to a directory on this drive (e.g. /media/extention/backup), what would happen? Will it prompt me to connect the drive when it is missing (the desired behavior), or just fail silently? Is there some way to tweak it to do so? I can roll my own cron-based backup script that checks if this drive is mounted, but I would really prefer to use an existing, integrated tool.

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• The practical cost of swapping effects

  - by sebf

  Hello, I use XNA for my projects and on those forums I sometimes see references to the fact that swapping an effect for a mesh has a relatively high cost, which surprises me as I thought to swap an effect was simply a case of copying the replacement shader program to the GPU along with appropriate parameters. I wondered if someone could explain exactly what is costly about this process? And put, if possible, 'relatively' into context? For example say I wanted to use a short shader to help with picking, I would: Change the effect on every object, calculting a unique color to identify it and providing it to the shader. Draw all the objects to a render target in memory. Get the color from the target and use it to look up the selected object. What portion of the total time taken to complete that process would be spent swapping the shaders? My instincts would say that rendering the scene again, no matter how simple the shader, would be an order of magnitude slower than any other part of the process so why all the concern over effects?

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• Own an iPad, iPhone, or Touch? Add GWB to your Home

  - by Staff of Geeks

  I know it is goofy to geek out about such things, but I am a pretty goofy geek.  Today we published support for the Apple icons for devices like the iPhone, iPad, or iPod Touch.  Now when you add Geekswithblogs.net to your home screen (via the little + in Safari) it will load the icon to the left instead of a screenshot of the site.  We have been using my iPhone and iPad to surf to GWB for awhile and we were tired of that screenshot.  Simple Google/Bing search and a little Photoshop CS5 (Amazing!!!) work and there it is.  Next step we are taking in the Apple iPad/Phone arena is getting our developer kit and seeing what possiblities there are for Geekswithblogs.net and a custom App.  Got any ideas? Here is a shot of my iPad 3G: Also, would anyone be interested in a Geekswithblogs.net custom background for the iPhone or iPad?  I can put something together real quick if there are any takers.

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• Tiny Wings - Placing items

  - by Federico

  I'm currently developing a Flash game like 'Tiny Wings'. I have a lot of work done, but i'm currently working on placing the items ( coins and obstacles ) on the terrain. My player it is moving on a auto-generated terrain (based on Emanuele Feronato's tutorials) so every time the player's x position is greater than (screenWidth + x) another hill is generated and so on. I'm currently having problems placing the items in a correct angle and put 5 or more items together on a hill. Could you please help me with this? Thanks, Regards. PS: This is the URL to the Emanuele Feronato post and the code to make the hills http://www.emanueleferonato.com/2011/10/04/create-a-terrain-like-the-one-in-tiny-wings-with-flash-and-box2d-%E2%80%93-adding-more-bumps/

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• Suspend/hibernate doesn't work on an Asus Laptop

  - by b1ackjosh

  I'm having issues suspending 11.04 on my new Asus U30sd-XA1 laptop, it's a new laptop on the market and I'm wondering if anyone else has had this issue and maybe have a fix for it. Basically whenever I close or put the laptop to sleep the screen goes black but the video card doesn't actually turn off, then the fan spins up even faster then it was before and gets hot. I did see that some people were having similar issues on other laptops and they set the kernal back. I'm newish to ubuntu and I'm not super comfortable messing with the kernal. If anyone has any other solutions that would be great. I am not using the 520m nvidia driver because it won't load unity after it's installed. I've also heard quite a few bad things about the drivers on the ubuntu forums, so I deactivated the driver.

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• Help me make a cronjob/screen command please?

  - by Josip Gòdly Zirdum

  Hi guys I want to set up a cronjob on reboot to do this cd /home/admin/vivalaminecraft.com && screen -d -m -S mcscreen && mono McMyAdmin.exe The issue is when I execute this it seems to create the screen but doesn't do the mono McMyAdmin.exe in the screen... Is there like a then command ? so it does 1. then 2. then 3. ? Could someone please help out :) So I tried this: so I did this: @reboot screen -dmS minecraft @reboot cd /home/admin/vivalaminecraft.com @reboot mono McMyAdmin.exe It still doesn't work. The screen is created but it doesn't have the mono execution in it I put this in it #!/bin/bash screen -dmS minecraft; cd /home/admin/vivalaminecraft.com; mono McMyAdmin.exe; is this correct?

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• Restricting crawler activity to certain directories with robots.txt

  - by neimad

  I would like to use robots.txt to prevent indexing of some parts of my website. I want search engines to index only the / directory and not search inside my controllers. In my robots.txt, I have this: User-Agent: * Disallow: /compagnies/ Disallow: /floors/ Disallow: /spaces/ Disallow: /buildings/ Disallow: /users/ Disallow: / I put this file in /mysite/public. I tested the file with a robots.txt validator and got no errors. However, Google always returns the result of my site. For testing, I added Disallow: /, but again, Google indexed all pages. floors, spaces, buildings, etc. are not physical directories. Is this a bug? How can I work around it?

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• '/'var/www/' vs '/home/$USER/public_html'

  - by OrganizedFellow

  I recently started using Ubuntu as a LAMP server. I've come across plenty of tutorials that say to place the files at '/var/www/' and I've also seen others that put them in '/home/$USER/public_html/'. During my testing and figuring stuff out, I was successfully able to view a test site URL from each location. Is one better than the other? I thought that maybe it was just preference. But the more I think about it, the more I want to keep all my work in my Home folder.

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• MVC - Business Logic

  - by BriskLabs Pakistan

  I have created a MVC based simple java application. its helps the user to add records through data forms to database..... i want that the data that i put into the database as a record is worked upon i.e by performing calculations on it. the original data should remain unaffected. while the new data after calculations performed must be stored as a new entity record into database. Where should i write the code for this background calculation .. as it is the rules and business logic... in a new java beans file... Please guide. regards

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• What norms/API for monitoring my servers?

  - by dystroy

  I have a dozen server applications installed on my customers intranets (they can send http requests over the internet but cannot be called from outside). They're written in various technologies, mainly java and Go. I want them to regularly push information about their state towards a central server which is visible on internet. Some of this information is generic (is it ON ?), some is specific (size of a cache in an application for example). The main goal is to be able to make a small web page on which I could instantly check the state of every servers. And maybe later add some kind of notification in case of problem. Obviously I can do this by writing a few dozen lines of code each side (or a little more if I put this data in a database) but in order to ease future evolution, it could be interesting to use some existing norms or libraries. So, what are the current opensource free and light solutions to do this, preferably with no central configuration when I add a server ? I'd prefer a norm over a library.

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• What is the typical example of old school website design?

  - by Pierre 303

  I want to build a website for a retro thing that was popular in the mid 90s (beginning of the commercial internet). So I want use old designs that was very popular at that time. The first thing that comes to my mind was those "under construction" animated gifs. People often put animated gifs everywhere. But also those awful repeating backgrounds. So yes, I want my website to look exactly like in the mid nineties ;) (please suggest practical and usable features, I guess an Java Applet menu would not work today, or saying on the bottom that this website is optimized for Netscape 3) EDIT: for those that wants to see the result: Retrology

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• One True Event Loop

  - by CyberShadow

  Simple programs that collect data from only one system need only one event loop. For example, Windows applications have the message loop, POSIX network programs usually have a select/epoll/etc. loop at their core, pure SDL games use SDL's event loop. But what if you need to collect events from several subsystems? Such as an SDL game which doesn't use SDL_net for networking. I can think of several solutions: Polling (ugh) Put each event loop in its own thread, and: Send messages to the main thread, which collects and processes the events, or Place the event-processing code of each thread in a critical section, so that the threads can wait for events asynchronously but process them synchronously Choose one subsystem for the main event loop, and pass events from other subsystems via that subsystem as custom messages (for example, the Windows message loop and custom messages, or a socket select() loop and passing events via a loopback connection). Option 2.1 is more interesting on platforms where message-passing is a well-developed threading primitive (e.g. in the D programming language), but 2.2 looks like the best option to me.

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• Create association between informations

  - by Andrea Girardi

  I deployed a project some days ago that allow to extract some medical articles using the results of a questionnaire completed by a user. For instance, if I reply on questionnaire I'm affected by Diabetes type 2 and I'm a smoker, my algorithm extracts all articles related to diabetes bubbling up all articles contains information about Diabetes type 2 and smoking. Basically we created a list of topic and, for every topic we define a kind of "guideline" that allows to extract and order informations for a user. I'm quite sure there are some better way to put on relationship two content but I was not able to find them on network. Could you suggest my a model, algorithm or paper to better understand this kind of problem and that helps me to find a faster, and more accurate way to extract information for an user?

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• How do you remember where in your code you want to continue next time?

  - by bitbonk

  When you interrupt the work on some code (be it because you have to work on something else or go on vacation or simply because it is the end of the day), once you close that Visual Studio project, what is your preferred way to remember what you want to do next when you start working on that code again. Do you set a Visual Studio bookmark or do write down something like // TODO: continue here next time? Maybe you have a special tag like // NEXT:? Do you put a sticky note on your monitor? Do you use a cool tool or Visual Studio plugin I should know? Do you have any personal trick that helps you find the place in your code where you left off the last time you worked on your code?

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• Advertising Campaign Bidding Network

  - by David

  I hope this is the correct stackexchange to post on. Seems to most relevant. I'm looking for more ways to monetize my site. I'm already using the usual Google Adsense, tradedoublers, ad networks, etc. What I want to know, is if anyone knows of a service/network out there (similar to tradedoubler), which allows you to accept (or bid) on campaigns (primarily CPM based). For example: I log in, I get a list of advertising campaigns that are available and the prices they are willing to pay or I can put a bid in with imp count and cpm rate. I'm looking for something ideally europe or UK based, but im open to others. Thanks!

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• How to fix a gstreamer error

  - by BJsgoodlife

  I upgraded to 14.04 and now gstreamer is not working. What I am trying to accomplish is to hear the audio input on my computer coming from a ham radio. This is the command that I am using: gst-launch pulserc ! pulseink. This is the error message that I am receiving: ERROR: pipeline could not be constructed: no element "pulserc". I am wondering if I should purge gstreamer, or if there is another command that I should put it. Thank you again everyone for all of your help.

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• Advice: How to overcome the "accent" barrier in cross-geographical teams ?

  - by shan23

  I'm an Indian working in a MNC. As a result, I often have to attend(and contribute) to meetings where I have to listen to people who have a pronounced American accent. Some are still understandable, but a couple of people I have interact with speak such a different form of English, I mostly have to guess at what they are saying. When I ask them to clarify, they often speak the same sentence in the same tenor/speed, so my net gain is zero. My question is, how to politely put it across that due to their accent, I can't understand a thing, and may they please speak slowly and a bit clearly ? Some people might take it a bit personally, since "everyone else" is understanding them perfectly...and I don't want to cause offense at all. Any ideas ?

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• rsync not working between NTFS/FAT and EXT

  - by wim

  I have music that I play in my car, from an FAT32 USB stick. The folder which I use to put songs on is stored on my EXT4 hard drive. I add/remove/retag songs regularly and occassionally want to rsync the changes to the USB stick. But for some unknown reason (maybe permissions?), rsync copies all the files every time rather than just changed ones. I am calling rsync like : rsync -vrlptgD source dest How can I make it work like I want it to (i.e. know when a file hasn't been changed and don't copy it)?

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• Can't disable giant cursors (from accessibility mode)

  - by jackweirdy

  I've just installed ubuntu 12.04 from a livecd. Out of curiosity, I enabled the accessibility options for people who are hard of sight. As you can guess this does the usual stuff of inverting colours, increasing text size and making the cursor larger. Having finished the installation I booted into the new system to find accessibility mode was still installed. From the lightdm login screen I disabled this which switched colours and text size back to default, however it's only the pointer cursor that has gone back to default. To put it another way, the "hand" icon that you get when hovering over a link, the cursor which appears when typing and pretty much every other cursor on the system are still large. I've looked on the Universal Access menu, but there's no option to disable large cursors. I've tried toggling accessibility on and off but to no avail.

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• IDirect3DDevice9Ex and D3DPOOL_MANAGED?

  - by bluescrn

  So I wanted to switch to IDirect3DDevice9Ex, purely for the SetFrameLatency function, as fullscreen vsynced D3D seemed to produce noticable input lag. But then it tells me 'ha ha ha! now you can't use D3DPOOL_MANAGED!': Direct3D9: (ERROR) :D3DPOOL_MANAGED is not valid with IDirect3DDevice9Ex Is this really as unpleasant as it looks (when you're relying quite heavily on managed resources) - or is there a simple solution? If it really does mean manual management of everything (reloading all static textures, VBs, and IBs on a device reset), is it worth the hassle, will IDirect3DDevice9Ex bring enough benefit to make it worth writing a new resource manager? Starting to think I must be doing something wrong, due to this: Direct3D9: (ERROR) :Lock is not supported for textures allocated with POOL_DEFAULT unless they are marked D3DUSAGE_DYNAMIC. So if I put my (static) textures in POOL_DEFAULT, they need flagging as D3DUSAGE_DYNAMIC, just because I lock them once to load the data in?

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• Installing Broadcom Drivers on Ubuntu 12.04

  - by HDInfinity

  I downloaded Ubuntu 12.04 so that I could Dual boot between Ubuntu and Vista. I am currently using a Broadcom 802.11.n Network Adapter for internet, I DON'T have access to an Ethernet connection. Is there a way for me to install the Broadcom drivers for Ubuntu while running Vista, then just install the drivers on Ubuntu from my Vista files. Or put the Drivers on a USB and install from there. There is no way for me to get an internet connection on Ubuntu without the Broadcam drivers.

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• Ubuntu chroot “No such file or directory”

  - by Paris

  Hi there. I hace a web application where I create some folders on my server and put executables there. Then I try to wun them with chroot but I get a message that access is denied there. I tried chroot -r 777 blah blah.... and then I get a message that the folder or the file that I call (sudo chroot mydirectory myfile_inside_Mydirectory) does not exist. This happens only when I call chroot on folders created by the web server. My web application is in php and I use: shell_exec("cp -R /var/www/comp/prison/bin $dir"); shell_exec("cp -R /var/www/comp/prison/lib $dir"); shell_exec("cp /var/www/janitor.out $dir/janitor.out"); shell_exec("sudo chmod -R 777 $dir"); $process = proc_open("sudo chroot $dir janitor.out", $descriptorspec, $pipes); sudo does not need password.

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• What are my tool options to prototype a 2D online multiplayer game?

  - by Asher Einhorn

  I'm looking for the best tool to allow me to quickly put together a 2D game that relies largely on networking. It's extremely likely that this game will require a server side program to constantly run. I have little experience with these things and since it's a prototype i'd like the easiest options for achieving this. I am looking to make this game for the web and mobile devices, although at present I only have access to ios hardware, (no android etc). I just want to get the bare bones of this set up so I can test it from the earliest opportunity to see if it's fun. EDIT - doesn't unity have some inbuilt networking stuff in it?

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• failure to restore backup from deja dup

  - by Layla Kosakov

  I had ubuntu 12.04.1 and I made a backup with deja dup of the home folder in an external hard disk. Today I installed ubuntu 14.4 and erased the ubuntu 12.04.1. Now I'm trying to restore my back up. First it ask where is the back up to restore, then it ask of what date to restore, and then it starts, after a wile ask for the password. I put the password and it says Restoring and stays in preparing with out any advancement. Don't show any error, just stays preparing. The window of details is in white. I had all my documents... it's very bad for me, all my personal data... lost? Thanks for any help, Layla.

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• Child object free movement on Parent object

  - by The415

  Just to be straightforward, I am completely new to many aspects of coding and am searching for different specs and guidelines to aid me on my journey to crafting a wonderful game in Epic Games' Unreal Engine 4. Okay, I know upon viewing this, some may have little to no clue what I mean, so I'll put it like this to explain what I mean : Imagine a third person game with a simple model of a character. Now, say I have an object as a torso of a character in a game. Now Say I have an object as a head of the character. How could I keep the head as a child of the torso, but at the same time, allow it to move with the camera angle.

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