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  • Intermittent USB 3.0 access - How do I troubleshoot?

    - by Billy ONeal
    I've got a WD Passport hard disk with "superspeed" USB 3.0 support. When I use my USB 3.0 flash drive (this is a Lenovo X220 laptop), USB 3.0 consistently works. But when I use the passport drive, almost without fail the connection drops to USB 2.0. Touching the cable seems to immediately trigger the problem, but it seems to happen on its own though. I've got another cable on order right now... but is it likely the cable's the issue here? Is there anything else I can check?

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  • How to backup a full Centos Server?

    - by benjisail
    Hi, I switched a few weeks ago from a dedicated server to a VPS. Now that everything is working well on the VPS I would like to shutdown the dedicated server and close my account with the hosting company. For peace of mind and in order to be more safe I would like to do a full backup of the server before stopping it. The best would be a backup that I could browse if I find that I need a something in the backup. What would be the best solution from command line? Thanks!!!

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  • Photo transfer problems from camera

    - by warkior
    We have a digital camera (Cannon SX130 IS) which we often connect to the Ubuntu 12.10 desktop via USB in order to download the images. In past flavours of Linux (Mint 12 was most recent) it worked fine, however since upgrading to Ubuntu 12.10, the process fails after downloading a small number of the images. I can view the images which will be transferred in the preview window, and I can browse the camera file system to download the images manually, but if I just drag/drop the images over from camera to desktop, it freezes after 5-6 are copied over. I've been able to get around the problem by only copying 3-4 at a time, but when you have 100+ images to transfer, that gets really frustrating. Any advice on where I could start looking for answers, or how I could diagnose the source of the problem further? We have also had some issues with WireLess USB mice though it may not be related. I'm hoping my USB controller in the computer isn't dying... it's not that old. Also, it seems to work much better under Windows.

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  • HP dv9000 Vista laptop won't boot from CD/DVD drive

    - by ScottEdwards2000
    My HP dv9000 Vista laptop recently got the BSOD with error 0x0000c1f5. The only way to fix this error is to be able to boot from CD/DVD and use some repair software I have. The problem is that the laptop REFUSES to boot from any CD/DVD I try. I've changed the boot order so the CD/DVD is first, and I can hear the drive spin up a bit upon power-up, but after a second, it spins down and then the laptop tries to boot from hard drive. Any ideas? (I've tried lots of CDs so it's not the media itself) Thanks much!

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  • How to implement "bullet time" in a multiplayer game?

    - by Tom
    I have never seen such a feature before, but it should provide an interesting gameplay opportunity. So yes, in a multiplayer/real-time environment (imagine FPS), how could I implement a slow motion/bullet time effect? Something like an illusion for the player that's currently slo-mo'ed. So everybody sees him "real-time", but he sees everything slowed down. Update A sidenote: keep in mind that a FPS game has to be balanced in order for it to be fun. So yes, this bullet time feature has to be solid, giving a small advantage to the "player", while not taking away from other players. Plus, there is a possibility that two players could activate their bullet time at the same time. Furthermore: I'm going to implement this in the future no matter what it takes. And, the idea is to build a whole new game engine for all this. If that gives new options, I'm more then interested in hearing the ideas. Meanwhile, here with my team we're thinking about this too, when our theory will be crafted, I'm going to share it here. Is this even possible? So, the question on "is this even possible" has been answered, now it's time to find the best solution. I'm keeping the "answer" until something exceptionally good comes up, like a prototype theory with something close to working pseudo code.

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  • Question regarding Readability vs Processing Time

    - by Jordy
    I am creating a flowchart for a program with multiple sequential steps. Every step should be performed if the previous step is succesful. I use a c-based programming language so the lay-out would be something like this: METHOD 1: if(step_one_succeeded()) { if(step_two_succeeded()) { if(step_three_succeeded()) { //etc. etc. } } } If my program would have 15+ steps, the resulting code would be terribly unfriendly to read. So I changed my design and implemented a global errorcode that I keep passing by reference, make everything more readable. The resulting code would be something like this: METHOD 2: int _no_error = 0; step_one(_no_error); if(_no_error == 0) step_two(_no_error); if(_no_error == 0) step_three(_no_error); if(_no_error == 0) step_two(_no_error); The cyclomatic complexibility stays the same. Now let's say there are N number of steps. And let's assume that checking a condition is 1 clock long and performing a step doesn't take up time. The processing speed of Method1 can be anywhere between 1 and N. The processing speed of Method2 however is always equal to N-1. So Method1 will be faster most of the time. Which brings me to my question, is it bad practice to sacrifice time in order to make the code more readable? And why (not)?

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  • Gnome 3 - Unable to change date and time

    - by Chris Harris
    I am running Arch Linux with Gnome 3. Unfortunately, although my time and date settings in /etc/rc.conf show that HARDWARECLOCK='UTC' and TIMEZONE='America/LosAngeles'. I continue to get the timezone of Europe/London. If I try to change the date and time via the GUI. It requires root access. After authorizing root access, the date and time may be changed; however, after closing the GUI window, it automatically reverts back to the previous incorrect timezone. I am able to use pool.ntp.org in order to sync my time to the correct one; however, this works only for the current session and is not fixed. This solution is inconvenient since there is not always network access. What other solutions are available for this problem?

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  • Efficient path-finding in free space

    - by DeadMG
    I've got a game situated in space, and I'd like to issue movement orders, which requires pathfinding. Now, it's my understanding that A* and such mostly apply to trees, and not empty space which does not have pathfinding nodes. I have some obstacles, which are currently expressed as fixed AABBs- that is, there is no unbounded "terrain" obstacle. In addition, I expect most obstacles to be reasonably approximable as cubes or spheres. So I've been thinking of applying a much simpler pathfinding algorithm- that is, simply cast a ray from the current position to the target position, and then I can get a list of obstacles using spatial partitioning relatively quickly. What I'm not so sure about is how to determine the part where the ordered unit manoeuvres around the obstacles. What I've been thinking so far is that I will simply use potential fields- that is, all units will feel a strong repulsive force away from each other and a moderate force towards the desired point. This also has the advantage that to issue group orders, I can simply order a mid-level force towards another entity. But this obviously won't achieve the optimal solution. Will potential fields achieve a reasonable approximation given my parameters, or do I need another solution?

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  • How can I force my browser to search Google in English?

    - by Tom Wijsman
    I'm too bored of seeing sites like Google and such show up in my native language, I would rather like them to be in English. Yet, I have to explicitly change the URL to .com and en and that kind of parameters in order for them to show up in English. Can I somehow force this? So, how is Google configured? However, it is set to English on the site itself so it has to be my browser: Then, how does my browser land up on non-english pages, like Google? It usually shows up in non-English when I'm performing a search, which uses: {google:baseURL}search?{google:RLZ}{google:acceptedSuggestion}{google:originalQueryForSuggestion}{google:searchFieldtrialParameter}{google:instantFieldTrialGroupParameter}sourceid=chrome&ie={inputEncoding}&q=%s When performing a search, it fills these variables in with non-english values. How can I tell my browser to fill these in with the English values? My Google Chrome options give preference to English:

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  • page rank 0 penalty

    - by mark
    I have a wordpress blog and a www-website on the same domain for about one year. Together it is about 170 pages. The page rank is still 0. I understand that page rank 0 is a penalty for duplicate content. The pages are indexed in google but still no page rank. In google webmaster tools there is no indication for any problem. I asked for reconsideration of both blog and website a month ago. Google accepted the reconsideration but it did not change anything. Other pages of similar size and similar audience earn PR 4-6. Is there something I can do in order to get a fair page rank? A coworker told me that it might be the case that a link farm is using the content and I can do nothing about it. Is there a reliable way to check for something like that? I do not like to give up so quickly is there a chance to fix this by for example moving to another domain?

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  • Translate MSOffice menus from Chinese to English

    - by terence_laoshi
    Hi! I'm stuck in China using a Chinese language MSOffice package (Home and Student). All of the menus and system instructions are in Chinese. I know there's a pack I can buy but that's not an option for this computer and this temporary situation. Is there another way to convert from Chinese to English? OR is there a site that provides some type of tree of all the menu and system information in English. At least that might help. I've done individual searches for a couple of items but that is incredibly time consuming in order to make a simple operational change. Thanks for any help.

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  • Framework for Everything - Where to begin? [Longer post]

    - by SquaredSoft
    Back story of this question, feel free to skip down for the specific question Hello, I've been very interested in the idea of abstract programming the last few years. I've made about 30 attempts at creating a piece of software that is capable of almost anything you throw at it. I've undertook some attempts at this that have taken upwards of a year, while getting close, never releasing it beyond my compiler. This has been something I've always tried wrapping my head around, and something is always missing. With the title, I'm sure you're assuming, "Yes of course you noob! You can't account for everything!" To which I have to reply, "Why not?" To give you some background into what I'm talking about, this all started with doing maybe a shade of gray hat SEO software. I found myself constantly having to create similar, but slightly different sets of code. I've gone through as many iterations of way to communicate on http as the universe has particles. "How many times am I going to have to write this multi-threaded class?" is something I found myself asking a lot. Sure, I could create a class library, and just work with that, but I always felt I could optimize what I had, which often was a large undertaking and typically involved frequent use of the CRTL+A keyboard shortcut, mixed with the delete button. It dawned on me that it was time to invest in a plugin system. This would allow me to simply add snippets of code. as time went on, and I could subversion stuff out, and distribute small chunks of code, rather than something that encompasses only a specific function or design. This comes with its own complexity, of course, and by the time I had finished the software scope for this addition, it hit me that I would want to add to everything in the software, not just a new http method, or automation code for a specific website. Great, we're getting more abstract. However, the software that I have in my mind comes down to a quite a few questions regarding its execution. I have to have some parameters to what I am going to do. After writing what the perfect software would do in my mind, I came up with this as a list of requirements: Should be able to use networking A "Macro" or "Expression system" which would allow people to do something like : =First(=ParseToList(=GetUrl("http://www.google.com?q=helloworld!"), Template.Google)) Multithreaded Able to add UI elements through some type of XML -- People can make their own addons etc. Can use third party API through the plugins, such as Microsoft CRM, Exchange, etc. This would allow the software to essentially be used for everything. Really, any task you wish to automate, in a simple way. Making the UI was as also extremely hard. How do you do all of this? Its very difficult. So my question: With so many attempts at this, I'm out of ideas how to successfully complete this. I have a very specific idea in my mind, but I keep failing to execute it. I'm a self taught programmer. I've been doing it for years, and work professionally in it, but I've never encountered something that would be as complex and in-depth as a system which essentially does everything. Where would you start? What are the best practices for design? How can I avoid constantly having to go back and optimize my software. What can I do to generalize this and draw everything out to completion. These are things I struggle with. P.s., I'm using c# as my main language. I feel like in this example, I might be hitting the outer limit of the language, although, I don't know if that is the case, or if I'm just a bad programmer. Thanks for your time.

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  • How to access a site in IIS with no DNS mapping

    - by CiccioMiami
    In my IIS 7.5 hosted in a Windows Server 2008 R2 I have several websites with no DNS address assigned. Let's take for instance the site (as named in IIS) with site name mySite. I have for this site the standard binding with no host name. Suppose that my server IP address is, for instance, 101.22.23.01. Therefore it seems logic to me that in order to access the website, I should place in the address bar of my browser: [IP_address]/[sitename] in this case: 101.22.23.01/mySite but it does not work. Shall I specify something else in the bindings?

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  • sharepoint 2007 access denied when accessing user profiles via ssp

    - by user22215
    Guys I have a really strange problem in regards to sharepoint mysites today I go into user profiles and properties in order to setup a property all of a sudden I get access denied. First off I know that I'm logged in with the correct account after the access denied I decided to click on personalization services and permissions I than get An unhandled exception occurred in the user interface.Exception Information: Cannot complete this action. I'm not seeing anything in the server application logs either. So have any of you guys seen this before is there some kind of way to grant a user account the manage profiles right permission using stsadm. BTW all other fucntions of the ssp are working fine so my question is if the user profiles and my sites of a ssp tanks how do you repair that portion of the ssp? BTW the user accounts that I'm using are site collection owners and also they have full control at the web application level. I actually ran across this interesting post but this does not really help my problem. http://blog.tylerholmes.com/2008/09/access-denied-for-site-collection.html

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  • Apache: Assign SSL server / client certs to directories

    - by Daniel Amaya
    I have multiple directories on my system, e.g., /var/www/dir1 /var/www/dir2 /var/www/dir3 And what I'd like to do is to generate a server/client SSL certificate for each directory, and then set up each directory such that the client cert must match the server cert in order to access said directory. Now, if someone has the client cert for /var/www/dir2 and they try to access /var/www/dir1, they will be unable to do so since those directories use different certs. Each of these directories is hosted on the same domain (i.e., domain.com/dir1, domain.com/dir2). Now, the problem I am having is that I am not exactly sure how to accomplish this in Apache. (Also, I don't really care for domain.com to require SSL, but I do want the directories to require it.)

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  • Airpot Express configuration

    - by Christina
    We are trying to set up remote access to a computer that houses a server fro a particular program we are running. The program says we need to configure the office router. In the firewall settings it says to open ports 5345-5351 (TCP only). Port Forwarding: You will also need to forward the same range of ports (5345-5351) to the computer running the Server. This typically requires that the computer running the Server be assigned a static IP on the local network. Having trouble figuring out which IP address we actually need to be using on the client side of this program in order to access the server computer. Can someone walk through this process?? We are working on Mac OSX 10.5. Thank you in advance!

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  • Overriding Apache auth directive

    - by Machine
    Hi! I'm trying to allow public access to a method that generates a WSDL-file for our API. The rest of the site is behind basic auth protection. Can you guys take a look at the following virtual-host configuration and see why the override does not take place? <VirtualHost *:80> ServerName xyz.mydomain.com DocumentRoot /var/www/dev/public <Directory /var/www/dev/public> Options Indexes FollowSymLinks MultiViews AllowOverride All Order allow,deny allow from all SetEnv APPLICATION_ENV testing </Directory> <Location /> AuthName "XYZ Development Server" AuthType Basic AuthUserFile /etc/apache2/xyz.passwd Require valid-user </Location> <Location /api/soap/wsdl> Satisfy Any allow from all </Location> </VirtualHost>

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  • Hourly CRON task running more frequently than one hour

    - by Justin
    I have a cron task that calls a special PHP script via wget. Here is the crontab entry: 0 * * * * wget http://www.... It will work perfect for several days, running on the hour. However, after a few days the cron job will start to be called several times an hour. I have never seen CRON drift like this, so I imagine it can't really be a CRON issue. However, the logs of the script that is called clearly show it running several times an hour. Server details: Ubuntu Luci Apache MySQL PHP5 Time is showing correct @ command line Server is setup to sync with a NTP server In order for the script to run it must be passed a unique 50-character hash key in the URL, so this script isn't being called from any other source accidentally. What might cause CRON to drift like this?

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  • Automatic generate code: "derived work"?

    - by Peregring-lk
    For example, I've GPL software. I'm the author of this GPL software. This GPL software has, between its code, Doxygen comments. These Doxygen comments are written to generate a CC-BY-SA html page, in order to upload this generated documentation in my project website under CC-BY-SA license. But, the Doxygen documentation output is a "derivate work"? After all, this documentation is based on my GPL source code. In this case, the documentation must be GPL. But, I want the documentation is CC-BY-SA, because it is documentation. GFDL doesn't help. GPL code can't become GFDL (the opposite yes). If this output is really a derivate work, I think, creates a strange situation, because, if I distribute my work, the recipient users can't legally distribute the generated documentation: while with my work I can do I want, the users don't, thus, they have to distribute any derivated work with the same license I offer them. What is the solution?

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  • how to keep display tick rate steady when using continuous collision detection?

    - by nas Ns
    (I've just found about this forum). I hope it is ok to repost my question again here. I posted this question at stackoverflow, but it looks like I might get better help here. Here is the question: I've implemented basic particles motion simulation with continuous collision detection. But there is small issue in display. Assume simple case of circles moving inside square. All elastic collisions. no firction. All motion is constant speed. No forces are involved, no gravity. So when a particle is moving, it is always moving at constant speed (in between collisions) What I do now is this: Let the simulation time step be 1 second (for example). This is the time step simulation is advanced before displaying the new state (unless there is a collision sooner than this). At start of each time step, time for the next collision between any particles or a particle with a wall is determined. Call this the TOC time; let’s say TOC was .5 seconds in this case. Since TOC is smaller than the standard time step, then the system is moved by TOC and the new system is displayed so that the new display shows any collisions as just taking place (say 2 circles just touched each other’s, or a circle just touched a wall) Next, the collision(s) are resolved (i.e. speeds updated, changed directions etc..). A new step is started. The same thing happens. Now assume there is no collision detected within the next 1 second (those 2 circles above will not be in collision any more, even though they are still touching, due to their speeds showing they are moving apart now), Hence, simulation time is advanced now by the full one second, the standard time step, and particles are moved on the screen using 1 second simulation time and new display is shown. You see what has just happened: One frame ran for .5 seconds, but the next frame runs for 1 second, may be the 3rd frame is displayed after 2 seconds, may be the 4th frame is displayed after 2.8 seconds (because TOC was .8 seconds then) and so on. What happens is that the motion of a particle on the screen appears to speed up or slow down, even though it is moving at constant speed and was not even involved in a collision. i.e. Looking at one particle on its own, I see it suddenly speeding up or slowing down, becuase another particle had hit a wall. This is because the display tick is not uniform. i.e. the frame rate update is changing, giving the false illusion that a particle is moving at non-constant speed while in fact it is moving at constant speed. The motion on the screen is not smooth, since the screen is not updating at constant rate. I am not able to figure how to fix this. If I want to show 2 particles at the moment of the collision, I must draw the screen at different times. Drawing the screen always at the same tick interval, results in seeing 2 particles before the collision, and then after the collision, and not just when they colliding, which looked bad when I tried it. So, how do real games handle this issue? How to display things in order to show collisions when it happen, yet keep the display tick constant? These 2 requirements seem to contradict each other’s.

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  • New SPC2 benchmark- The 7420 KILLS it !!!

    - by user12620172
    This is pretty sweet. The new SPC2 benchmark came out last week, and the 7420 not only came in 2nd of ALL speed scores, but came in #1 for price per MBPS. Check out this table. The 7420 score of 10,704 makes it really fast, but that's not the best part. The price one would have to pay in order to beat it is ridiculous. You can go see for yourself at http://www.storageperformance.org/results/benchmark_results_spc2The only system on the whole page that beats it was over twice the price per MBPS. Very sweet for Oracle. So let's see, the 7420 is the fastest per $. The 7420 is the cheapest per MBPS. The 7420 has incredible, built-in features, management services, analytics, and protocols. It's extremely stable and as a cluster has no single point of failure. It won the Storage Magazine award for best NAS system this year. So how long will it be before it's the number 1 NAS system in the market? What are the biggest hurdles still stopping the widespread adoption of the ZFSSA? From what I see, it's three things: 1. Administrator's comfort level with older legacy systems. 2. Politics 3. Past issues with Oracle Support.   I see all of these issues crop up regularly. Number 1 just takes time and education. Number 3 takes time with our new, better, and growing support team. many of them came from Oracle and there were growing pains when they went from a straight software-model to having to also support hardware. Number 2 is tricky, but it's the job of the sales teams to break through the internal politics and help their clients see the value in oracle hardware systems. Benchmarks like this will help.

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  • TechEd North America 2012-Day 4 #msTechEd #teched

    - by Marco Russo (SQLBI)
    I hadn’t time yesterday to write a blog post before of the beginning of the day and I recover now that I’m already back to Europe. I spent many hours at the Microsoft booth meeting people who asked questions about Tabular, Power View and PowerPivot. I have to say that I’m really glad so many people started using PowerPivot and of the large interest around Tabular. During my BISM: Multidimensional vs. Tabular I’ve been helped by Alberto during the demo (we joked about he was the demo monkey) and the feedback received are good. I tried to compare the strength and weakness of the two modeling options without spending time describing the area in which they are similar. During the days before I had many discussions about scenarios based on snapshots and I added a few slides to the presentation in order to cover this area that I thought was marginal but seems to be a very common one. To know more, watch the presentation when it will be available or wait for some article I’ll write in the future describing these patterns. In less than 10 days, I’ll be at TechEd Europe and I’m really looking forward to meet other Tabular developers and PowerPivot users there!

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  • Can't reinstall Office 2010

    - by Sniffer
    I had Office 2010 Professional Plus installed on my Windows 7 (32 bit machine), then I decided to remove it and install the 2013 version. I went to Programs and Features and removed the software as always, everything went successfully and it asked me to reboot the machine in order to complete the un-installation process, and when I clicked reboot a message suddenly appears telling me that an error occurred during un-installation and the system restarts instantly before I get a chance to see the error message. After that I tried to re-install Office 2010 but after the installer seems to have finished, it tells me that the installation failed without an explanations ? I have taken a look at the event viewer and there is some error saying the office protection platform service failed to start, could this have anything to do with the problem? What could be the cause, how can I fix this ?

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  • Apache conf for high trafic CMS with backend users?

    - by Annan
    I'm in the situation where a website is going to have a high number of web users and a few backend webmasters. Webmasters will upload images (+other high mem tasks) and this bumps up the memory allocation of the httpd child processes to 100-150mb. In order to stop swapping I'm currently setting MaxClients in httpd.conf to 20. However this lowers maximum simultaneous requests. Will this be a problem when the website goes live? What is the best configuration? Info: Drupal 6, PHP 5, Apache 2.2 (Prefork atm) I'm thinking about Worker MPM, two apache instances or low MaxRequestsPerChild.

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  • ACL mess after rsync on Windows 2008

    - by jdehaan
    The permissions in the ACL are not in the right order on some files and directories after having used rsync to synchronize directory trees. The stuff works well as it is on Windows 2003. Can someone explain this in detail. What exactly changed regarding ACLs from Windows 2003 to 2008? We fixed the rights with icalcs afterwards. But this thing seems a bit weird. Maybe 2008 has some restrictions or more checks 2003 did not have.

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