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• System does not detect USB pendrives

  - by cshubhamrao

  This USB thing is driving me crazy. 2 problems in time span of 3 hours. Ok I was already trying to cope up with "wrong fs type, bad option, bad superblock" error while mounting FAT Drives when to my amazement I discovered that none of the USB Storage devices showed up in the system Useful outputs: - tail /var/log/syslog: root@shubham-pc:~# tail /var/log/syslog Nov 7 21:41:47 shubham-pc colord: device removed: sysfs-HP-v250w Nov 7 21:41:51 shubham-pc kernel: [ 3441.529542] usb 1-1: USB disconnect, device number 11 Nov 7 21:41:53 shubham-pc kernel: [ 3443.820029] usb 1-2: new high-speed USB device number 14 using ehci-pci Nov 7 21:41:54 shubham-pc kernel: [ 3443.952897] usb 1-2: New USB device found, idVendor=0781, idProduct=5530 Nov 7 21:41:54 shubham-pc kernel: [ 3443.952905] usb 1-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3 Nov 7 21:41:54 shubham-pc kernel: [ 3443.952909] usb 1-2: Product: Cruzer Nov 7 21:41:54 shubham-pc kernel: [ 3443.952913] usb 1-2: Manufacturer: SanDisk Nov 7 21:41:54 shubham-pc kernel: [ 3443.952917] usb 1-2: SerialNumber: 20060876420EC6016847 Nov 7 21:41:54 shubham-pc mtp-probe: checking bus 1, device 14: "/sys/devices/pci0000:00/0000:00:1d.7/usb1/1-2" Nov 7 21:41:54 shubham-pc mtp-probe: bus: 1, device: 14 was not an MTP device

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• Is it possible to remove a particular host key from known_hosts?

  - by Kaustubh P

  I usually end up deleting the entire known_hosts file, which I have no problems for. But just out of curiosity, Is it possible to remove just a single entry? I opened the known_hosts file, and other han understanding that the file contains fingerprints for a given machine, I ddnt understand anything. Below is the message I faced, which led me to ask this question. Add correct host key in /home/wissen16/.ssh/known_hosts to get rid of this message. Offending key in /home/wissen16/.ssh/known_hosts:1 RSA host key for foo.com has changed and you have requested strict checking. Host key verification failed. Thanks.

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• What ways are there to set permissions on an Exchange 2003 mailbox?

  - by HopelessN00b

  I'm having a difficult/impossible time tracing down a permissions issue on an Exchange 2003 mailbox, and I was wondering if I'm missing any technical possibilities here. The basic question is what ways are there to set a user's permissions to access a mailbox in Exchange 2003? I know of two. Permissions on the mailbox itself (Mailbox Rights) and having delegated rights. And then, if it's possible, how would one view all the permissions (including delegated permissions) on the mailbox? The situation is that a new user who's been set up "exactly like all the others" in his department (pretty sure he was copied via the right click option in ADUC, in fact) can't access a specific shared mailbox, which I've been assured about a dozen other people do have access to and access on a regular basis. As to how they got permissions to the mailbox, no one knows, so it must have been granted by a white wizard whose spell has since worn off, so now IT has to handle it instead. Anyway... This mailbox is a normal AD user, created as a service account, for which no one knows the password (of course), so it's probably not the case that this service account was being used to delegate permissions. Upon taking examining the Mailbox Rights directly... Here are the permissions I see: This leads me to believe that one of two things are happening - the managers have been delegating full mailbox permissions to the rest of the department, or everyone's logging in using... not their own account. But, before I get too excited about the prospect of busting out the LART and strolling over to that department, I want to make sure I'm not missing another possible explanation. Like most of the rest of the world, I ditched Exchange 2003 at the earliest possible opportunity, and had been looking forward to never seeing it again, so I'm a bit rusty on the intricacies of how it [mostly, sort of] works. Anyone see any or possibilities, or things I may have missed, or does the LART get to come out and play?

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• Is it possible to remove a particular host key from SSH's known_hosts file?

  - by Kaustubh P

  I usually end up deleting the entire known_hosts file, which I have no problems for. But just out of curiosity, Is it possible to remove just a single entry? I opened the known_hosts file, and other han understanding that the file contains fingerprints for a given machine, I dont understand anything. Below is the message I faced, which led me to ask this question. Add correct host key in /home/wissen16/.ssh/known_hosts to get rid of this message. Offending key in /home/wissen16/.ssh/known_hosts:1 RSA host key for foo.com has changed and you have requested strict checking. Host key verification failed. Thanks.

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• Sanity checks vs file sizes

  - by Richard Fabian

  In your game assets do you make room for explicit sanity checks, or do you have some generally expected bounds which you assert? I've been thinking about how we compress data and thought that it's much better to have the former, and less of the latter. If your data can exceed your normal valid ranges, but if it does it's an error, then surely that implies you're not compressing the data well enough? What do you do to find out if your data is compressed as far as it can be, and what do you use to ensure your data isn't corrupted and ensure it's an official release? EDIT I'm not interested in sanity checking the file size, but instead, how you manage your sanity checks and whether you arrange the excess size caused by the opportunity to do sanity checks by using explicit extra data, or through allowing the data enough file space (data member size) to be out of valid range and thus able to be checked merely by looking at the asset in memory after loading.

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• Reading 'Index Status' graph in Google Webmaster tools

  - by sam

  I recently found a bunch of old files that had been ftp'ed to a live production server by mistake on a static (html / css / js) site. I manually deleted these files, but today when checking in Google Webmaster tools i found this graph below. The 'update' marker is from 3/9/14, what i can work out is what Google is trying to tell me, are they saying that : There was a ranking update like Penguin or Panda and they penalized my site and un-indexed a load of pages which they thought were junk.. OR Is this showing that I updated the site by deleting the files on the server on 3/9/14 OR Is this something else ?

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• Google Authorship Image of my blogspot has been disappeared in Google SERP. Why?

  - by Sathiya Kumar

  I have a blogspot and i used my image to appear on the Google SERP for my keywords using Google Authorship Markup. My image was showed for last 2 months but while checking SERP for my blog, i found that my authorship markup is not working. My image, name and G+ followers count is not appearing near my blogspot URL in SERP. I didn't made any changes in my google+ profile or in my blogspot header tag where i had put the authorship code. I tried to find the reason but i didn't find any value answer. May anyone answer this question. Please let me know if you had already experienced like this.

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• Making more complicated systems(entity-component-system model question)

  - by winch

  I'm using a model where entities are collections of components and components are just data. All the logic goes into systems which operate on components. Making basic systems(for Rendering and handling collision) was easy. But how do I do more compilcated systems? For example, in a CollisionSystem I can check if entity A collides with entity B. I have this code in CollisionSystem for checking if B damages A: if(collides(a, b)) { HealthComponent* hc = a->get<HealthComponent(); hc.reduceHealth(b->get<DamageComponent>()->getDamage()); But I feel that this code shouldn't belong to Collision system. Where should code like this be and which additional systems should I create to make this code generic?

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• Ubuntu doesn't boot after 11.10 upgrade from 11.04

  - by Gio Borje

  Had this problem earlier: Crash after update to 11.10, from 11.04; ran the solution and had everything updated and upgraded. I get the following lines after booting with some of the preceding start, stop an [OK] lines as the other topic. * Checking battery state... [ 21.640534] btusb_intr_complete: hci0 urb ffff88011e948480 failed to resubmit (19) [ 21.640690] btusb_bulk_complete: hci0 urb ffff88011e948cc0 failed to resubmit (19) [ 21.640734] btusb_bulk_complete: hci0 urb ffff88011e9480c0 failed to resubmit (19) I run tty2 and execute startx to start the GUI that I'm using right now but Ubuntu won't boot without it.

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• Have you downloaded the All-In-One Code Framework?

  - by Eric Nelson

  The Microsoft All-In-One Code Framework is a free, centralized code sample library provided by the Microsoft Community team. It aims to provide typical code samples for all Microsoft development technologies. The team listens to developers’ pains in MSDN forums, social media and various developer communities and write code samples based on developers’ frequently asked programming tasks. Additionally, our team offers a free code sample request service. Awesome?! I think so. Have also just added it to 99 technical resources for developers and architects inside ISVs – also worth checking out. Check it out on codeplex

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• Inspection, code review - is it really testing?

  - by user970696

  ISTQB, Wikipedia or other sources classify verification acitivities (reviews etc.) as a static testing, yet other do not. If we can say that peer reviews and inspections are actually a kind of a testing, then a lot of standards do not make sense (consider e.g. ISO which say that validation is done by testing, while verification by checking of work products) - it should at least say dynamic testing for validation, shouldn't it? I am completing master thesis dealing with QA and I must admit that I have never seen worse and more ambiguous and contradicting literature than in this field :/ Do you think (and if so, why) that static testing is a good and justifiable term or should we stick to testing and static checks/analysis?

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• Wiped data, and duplicated folders into files.

  - by Kaustubh P

  Something weird happened today, and I dont know how. Within a folder, all folders have a file by the same name, with a colon appended to it. And all the files from the most inner-most directory in my home, have been dumped to ~, with a size of 0 bytes. I have not executed any scripts or anything. I was just checking out some easter eggs, namely the gegls from outer space and free the fish and was away from the computer and was logged because of the screensaver. I couldnt log-back in with my password, so I just reset the PC, and while booting, the PC went into a drive check. BUT, IIRC, i saw the duplicate "folder files" before I had logged out, so thats not the reason! All the files have a timestamp of 14 Jan. Also, the contents of my eclipse folder have been dumped into ~. Right down to the jars and ini files. HELP!

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• update-apt-xapian-index uses 100% CPU, even when Update Manager is set to not check for updates

  - by Dave M G

  I have a slightly older laptop running Ubuntu 11.10. It runs fine, but frequently, when I start it up, the CPU monitor in my Gnome Panel shows 100% usage for for what can be up to five minutes or so. It seems that the offending process is update-apt-xapian-index, which, if I understand correctly, is the update manager checking for updates. I have gone into the update manager settings, and selected to never check for updates. I'll do that manually when I feel like I have the time to leave the laptop running for that. However, despite my selection, this still happens. Roughly 50% of the time or more, when I start my laptop, it runs update-apt-xapian-index. How can I get the update manager to respect my settings, or at least to get this process to stop eating my CPU cycles?

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• 500.50 error using URL Rewrite

  I ran into a 500.50 error yesterday, which wasnt very descriptive initially, so I thought I would provide some details on what it could be. First, off, if you hit the page remotely, its going to hide the real details.  It will look something like this: Server Error 500 - Internal server error. There is a problem with the resource you are looking for, and it cannot be displayed. Checking the IIS logs will show that its a 500.50 error in this case. The first thing to do after running into...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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• XNA: SpriteFont question

  - by Zukki

  Hi everyone, I need some help with the SpriteFont. I want a different font for my game, other than Kootenay. So, I edit the SpriteFont xml, i.e: <FontName>Kootenay</FontName> or <FontName>Arial</FontName> No problem with Windows fonts, or other XNA redistributable fonts pack. However, I want to use other fonts, that I downloaded and installed already, they are TTF or OTF, both supported by XNA. My problem is, I cant use them, I got this error: The font family "all the fonts i tried" could not be found. Please ensure the requested font is installed, and is a TrueType or OpenType font. So, checking at the windows fonts folder, I check the properties and details of the fonts, I try all the names they have, and but never works. Maybe I need some kind of importing or installing in order to use them, I dont know, and I hope you guys can help me, thanks!

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• Boot problem with Ubuntu 11.10

  - by leonard

  So, I am an Ubuntu newbie, and I don't know a thing about it. I tried to install restricted extras (am I using it right?) through terminal, but it seems I failed :) maybe because during installation the internet connection crashed... anyway, I restarted and I got the Ubuntu intro screen at the boot, and then a black screen appeared with this information: checking battery state I restarted and it showed something else, so I rebooted for 5 times. Then a screen appeared *starting bluetooth *pulseaudio configured for per-user sessions saned disabled; edit /etc/default/saned I tried this: My fresh installation doesn't load. (PulseAudio problem) but didn't know how to save so I just skipped to update-grub, anyway nothing helped. What do I do?

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• Juju bootstrap fails to start network on local environment

  - by Amith KK

  I've followed the instructions at https://juju.ubuntu.com/CharmSchool and rebooted 5 times...... I cant seem to do a juju-bootstrap (local) This is the output: amith@amith-desktop:~$ juju bootstrap 2011-11-24 17:08:05,708 INFO Bootstrapping environment 'local' (type: local)... 2011-11-24 17:08:05,710 INFO Checking for required packages... 2011-11-24 17:08:06,593 INFO Starting networking... error: Failed to start network default error: internal error Child process (dnsmasq --strict-order --bind-interfaces --pid-file=/var/run/libvirt/network/default.pid --conf-file= --except-interface lo --listen-address 192.168.122.1 --dhcp-range 192.168.122.2,192.168.122.254 --dhcp-leasefile=/var/lib/libvirt/dnsmasq/default.leases --dhcp-lease-max=253 --dhcp-no-override) status unexpected: exit status 2 Command '['virsh', 'net-start', 'default']' returned non-zero exit status 1 2011-11-24 17:08:07,217 ERROR Command '['virsh', 'net-start', 'default']' returned non-zero exit status 1 Is there any fix at all?

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• Skills to Focus on to land Big 5 Software Engineer Position

  - by Megadeth.Metallica

  Guys, I'm in my penultimate quarter of grad school and have a software engineering internship lined up at a big 5 tech company. I have dabbled a lot recently in Python and am average at Java. I want to prepare myself for coding interviews when I apply for new grad positions at the Big 5 tech companies when I graduate at the end of this year. Since I want to have a good shot at all 5 companies (Amazon,Google,Yahoo,Microsoft and Apple) - Should I focus my time and effort on mastering and improving my Java. Or is my time better spent checking out other languages and tools ( Attracted to RoR, Clojure, Git, C# ) I am planning to spend my spring break implementing all the common algorithms and Data structure out of my algorithms textbook in Java.

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• The updated Survey pattern for Power Pivot and Tabular #powerpivot #tabular #ssas #dax

  - by Marco Russo (SQLBI)

  One of the first models I created for the many-to-many revolution white paper was the Survey one. At the time, it was in Analysis Services Multidimensional, and then we implemented it in Analysis Services Tabular and in Power Pivot, using the DAX language. I recently reviewed the data model and published it in the Survey article on DAX Patterns site. The Survey pattern is the foundation for others, such as the Basket Analysis, and it is widely used in many different business scenario. I was particularly happy to know it has been using to perform data analysis for cancer research! In this article I did some maintenance on the DAX formulas, checking that the proper error handling is part of the formulas, and highlighting some differences in slicers behavior between Excel 2010 and Excel 2013, which could be particularly important for the Survey scenario. As usual, we provide sample workbooks for both Excel 2010 and Excel 2013, and we use DAX Formatter to make the DAX code easier to read. Any feedback will be appreciated!

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• JavaOne Content Catalog Live!

  - by programmarketingOTN

  The JavaOne Content Catalog—the central repository for information on sessions, demos, labs, user groups, exhibitors, and more for San Francisco 2012—is live!In the Content Catalog you can search on tracks, session types, session categories, keywords, and tags. Or, you can search for your favorite speakers to see what they’re presenting this year. And, directly from the catalog, you can share sessions you’re interested in with friends and colleagues through a broad array of social media channels.Start checking out JavaOne content now to plan your week at the conference. Then you’ll be ready to sign up for all of your sessions in mid-July when the scheduling tool goes live. Happy browsing! 

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• How to use a zenity progress bar with cclive

  - by Winael

  I tried to use a zenity progress bar with cclive. I'm writting a script to download web videos files and I wanna see the progression of the download. But when I try something like $cclive <url> 2>&1 | zenity --progress But when I execute the command line but it not seems to work. Any idea of how I can do that ? BR, [Edit] cclive have this kind of output : cclive http://www.youtube.com/watch?v=youtubevideo Checking ... .......... ..........done. youtubevideo.flv 2.5M 75.8K/s 00:09:29 5% So I need to send the last part to sdout but I dont know how. Else and about pulsate, we can't see th progression with this option, and I really need it... So I will not using pulsate for this script.

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• Render a 3D scene in multiple windows - extended panoramic view

  - by teodron

  Is there any resource location on how to view a 3D scene from an application or a game on multiple windows or monitors? Each window should continue drawing from where the neighbouring one left off (in the end, the result should be a mosaic of the scene). My idea is to use a camera for each window and have a reference position and orientation for a meta-camera object that is used to correctly offset the other camera. Since there are quite some elements to consider (window specs, viewport properties, position-orientation of each render camera), what is the correct way to update the individual cameras considering the position and orientation of the central, meta-camera? I currently cannot make the cameras present the scene contiguously (and I am reluctant in working out the transformations without checking whether this is the actual way of doing things).

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• How do you avoid working on the wrong branch?

  - by henginy

  Being careful is usually enough to prevent problems, but sometimes I need to double check the branch I'm working on (e.g. "hmm... I'm in the dev branch, right?") by checking the source control path of a random file. In looking for an easier way, I thought of naming the solution files accordingly (e.g. MySolution_Dev.sln) but with different file names in each branch, I can't merge the solution files. It's not that big of a deal but are there any methods or "small tricks" you use to quickly ensure you're in the correct branch? I'm using Visual Studio 2010 with TFS 2008.

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• Where should the database and mail parameters be stored in a Symfony2 app?

  - by Songo

  In the default folder structure for a Symfony2 project the database and mail server credentials are stored in parameters.yml file inside ProjectRoot/app/config/parameters.yml with these default values: parameters: database_driver: pdo_mysql database_host: 127.0.0.1 database_port: null database_name: symfony database_user: root database_password: null mailer_transport: smtp mailer_host: 127.0.0.1 mailer_user: null mailer_password: null locale: en secret: ThisTokenIsNotSoSecretChangeIt During development we change these parameters to the development database and mail servers. This file is checked into the source code repository. The problem is when we want to deploy to the production server. We are thinking about automating the deployment process by checking out the project from git and deploy it to the production server. The thing is that our project manager has to manually update these parameters after each update. The production database and mail servers parameters are confidential and only our project manager knows them. I need a way to automate this step and suggestion on where to store the production parameters until they are applied?

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• Laptop buttons not working on a Dell Latitude e6400

  - by Ido

  I have install Ubuntu 12.10 64 bit on my Dell Latitude E6400 laptop. I have the latest bios version for my laptop (A32) which I downloaded from the official Dell website by checking updates that matches the service tag on my laptop. I'm having serious problems with all the mouse buttons on my laptop. The right-click button doesn't work at all under any circumstance. The left click button only work when clicking on icons in the left side-bar and in the top menu (like clicking on the power icon in the top-right corner or clicking on the file menu). However none of the buttons work in any of the applications even simple one like the file browser (home folder). For example when I try to click on a folder inside nautilus it doesn't work or when I try to click on the "x" close icon to close the window it also doesn't work. Can you help me figure it out?

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