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  • REST API at backend and MVC Javascript framework at client side

    - by Prashere
    I am building an online social network. I have finished writing RESTful API service using Django. This will return only JSON response (No HTML will be generated from server side) so that this JSON response can be used to build native smartphone apps. API service being common to all clients. My question is, since there is no HTML response from server side, can the MV* Javascript Frameworks like Angular / Backbone / Ember take care of complete Front-end, right from generating HTML page with CSS?

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  • Failure to Boot Windows 7 after Ubuntu install

    - by Mike
    My computer is a (brand new) PC notebook, without a CD drive running Windows 7. I followed this page to install from USB: https://help.ubuntu.com/community/Installation/FromUSBStickQuick The installation went well and i am using Ubuntu now (v. 12.04 i believe) I want to be able to dual boot Ubuntu and Win7 The problem is that the disc partitioning during the Linux install caused a problem with Windows, caused some problem with windows, and windows can no longer boot when i choose it at the GNU GRUB screen. When i restart my computer i can successfully boot Linux, but not Windows 7. At the GRUB screen - if i run Win7 normally, it freezes, shows a blue screen, and returns back to GRUB - if i run Win7 recovery, i dont know how to access the files that i need in order to run windows again, so nothing helpful happens. Can you please tell me what i would need to do(or link a guide) in order to run Windows again. (Windows and Linux is preferable, but if thats impossible going back to only Windows will help too) Im guessing the easiest thing to do is just to reinstall both OS, or is there anyway to undo the partition i made during the install? Thanks

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  • Is it okay for programmers to be given the task of outlining database requirements?

    - by L'Ingenu
    In my current job, dba's and programmers are divided in tasks. Any code that needs to be written in procedures dba's write, and programmers do only application code. The strange thing is that whenever a task needs to be defined/specced, programmers get the task, and we have to define all the procedures needed and what they should return. Is this a common practice in software development? Are programmers generally the ones tasked with building requirements for the database side?

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  • How can I keep gnu screen from becoming unresponsive after losing my SSH connection?

    - by Mikey
    I use a VPN tunnel to connect to my work network and then SSH to connect to my work PC running cygwin. Once logged in I can attach to a screen session and everything works great. Now, after a while, I walk away from my computer and sooner or later, the VPN tunnel times out. The SSH connection on each end eventually times out and then I eventually come back to my computer to do some work. Theoretically, this should be a simple matter of just restarting the VPN, reconnecting via SSH, and then running "screen -r -d". However apparently when the sshd daemon times out on the cygwin PC, it leaves the screen session in some kind of hung state. I can reproduce a similar hung state by clicking the close box on a cygwin bash shell window while it's running a screen session. Is there any way to get the screen session to recover once this has happened, so that I don't lose anything?

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  • Enable multiple audio output on Windows 7

    - by patrick
    For Windows 7, 64 bit: I have a digital SPDIF output to my stereo, which controls speakers in other rooms. I also have a set of speakers connected to the regular audio jack at the computer. This allows me to send music to the kitchen while my child plays games on the computer. Works great. Except when I'm playing games and still want to listen to music. ;-D I know I can manually switch WMP to play through the speakers instead of SPDIF, but I was wondering if there's any way to enable simultaneous audio out in Windows 7? Virtual Audio Card is a non-starter because I'm running 64 bits and the VAC driver isn't signed.

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  • Windows 7 freezing unexpectedly

    - by Thomas Deutsch
    I have a Windows 7 computer here, which is freezing between 2 times a day and 1 time every second day. I see no problem, no special drivers, no special Apps are open, no encryption or something like that. Apps usually open then are Firefox, Thunderbird, Eclipse and maybe Office. Computer is just freezing. No Reboot, no shutdown, no bluescreen and no error. User has to hardreset it. Eventlog shows me an kernel error saying it has been unexpected rebooted due to an fatal error, but no statement about what kind of error happended. Anyone an idea what it can be? Chkdisk should be ok (currently, I run it a second time).

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  • Assisting a user using VNC

    - by wizlog
    I'm trying to help a friend with their computer remotely. He has a version of VNC, I'm not sure which one, so I downloaded and installed the VNC Viewer and Listening Viewer. I ask my friend for his IP address and port number, and he tells me that every time he's used it, the person giving him assistance (remotely controlling his computer) gave him some kind of number. I should note that my friend is not tech savy, and it may have been an IP address, but I'm not sure. What kind of number would the user be looking for? Does this indicate his version of VNC, Does that even matter? I am completly forign to VNC and don't know where to begin looking for an answer myself, and (for whatever reason) I can't ask my friend to figure out what version of VNC he is using.

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  • Windows VPN not authenticating from ADSL to Wireless link

    - by deanvz
    I have a normal windows VPN on a computer connecting to a 196.201.x.x/24 IP. If this VPN tries to connect from any address in the 41.x.x.x range it cant get there. The server is a normal windows 2008 server, running exchange with a PPPoE IP natted to a public IP on the public gateway of the wireless network as the server is on site and its connectivity is derived from Mikrotik RB's. The computer on the 41 range can traceroute and ping the server, but the VPN does not authenticate. When on the network or any other, the VPN works fine. Is there something that could be configured on the VPN client? All firewall settings of a standard ADSL router have been checked and found to block only ICMP's. Is this a VPN configuration problem or a network issue?

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  • Reboot loop after Windows XP Service Pack 3 update

    - by espais
    Recently I upgraded to Service Pack 3, and now it seems that something has gone terribly wrong with the update. After logging in, my computer will blue screen after about 5 minutes and then go into a reboot loop (I don't have the exact error message handy). I have a Sager NP2092 notebook, running an Intel chipset. I'd rather avoid having to reformat my XP, especially with my copy of Windows 7 arriving right around the corner. After doing some Googling, I came across this article: Does your AMD-based computer boot after installing XP SP3? However, it deals with the AMD chips, and specifically states not to use its fix on Intel based systems. EDIT After killing the reboot, this is the error that pops up: STOP: 0x000000F4 (0x00000003, 0x8A187118, 0x8A18728C, 0x80604438) EDIT2 I have run Memtest86, and it reported 0 errors.

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  • Screen is black at login screen if display driver is enabled

    - by Amir Rachum
    I have a Lenovo x200 and recently its screen didn't work, so I took it to a repair lab. The guy told me they replaced the screen inverter. I powered up the laptop and the ThinkPad logo was shown, so I was happy. When I got home the computer would boot up, then instead of the logon screen, I got a black screen. Went to safe mode, disabled the display adapters, reset the computer, and I got a clean boot. Then I tried to reinstall the drivers, and it just led to the same condition. My video card is (from device manager): Mobile Intel(R) 4 Series Express Chipset Family. Now my laptop works as I'm working with display drivers disabled, but without display drivers I can't watch movies, etc. Any solution to this problem? Edit: I plugged in an external monitor and it works on it with display drivers enabled. However, it does not find the laptop monitor.

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  • Lagging digital tv over ethernet

    - by Steve
    I have a HD Home Run TV over ethernet device, which connects the aerial to my router, and from there the router connects to my PC over about 15m of 100Mbps ethernet cable. The TV output lags every second. It does not do so for a computer much closer to the router. It is odd to me that the network rate is around 7Mbps on a 100Mbps cable. I am not downloading or streaming anything else on the affected computer. Is this lag caused by the speed of the cable, the length of the cable, or interference on the cable? I am considering swapping the ethernet cable with shielded ethernet cable.

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  • How to Build a Website With 2 Simple Tools

    Building your own web page or website shouldn't be as difficult a process as you may at first have thought. As with other various issues in life, the simple act of merely believing that everything pertaining to constructing an internet website is beyond your capabilities only make things worse than they actually are.

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  • Zooming in isometric engine using XNA

    - by Yheeky
    I´m currently working on an isometric game engine and right now I´m looking for help concerning my zoom function. On my tilemap there are several objects, some of them are selectable. When a house (texture size 128 x 256) is placed on the map I create an array containing all pixels (= 32768 pixels). Therefore each pixel has an alpha value I check if the value is bigger than 200 so it seems to be a pixel which belongs to the building. So if the mouse cursor is on this pixel the building will be selected - PixelCollision. Now I´ve already implemented my zooming function which works quite well. I use a scale variable which will change my calculation on drawing all map items. What I´m looking for right now is a precise way to find out if a zoomed out/in house is selected. My formula works for values like 0,5 (zoomed out) or 2 (zoomed in) but not for in between. Here is the code I use for the pixel index: var pixelIndex = (int)(((yPos / (Scale * Scale)) * width) + (xPos / Scale) + 1); Example: Let´s assume my mouse is over pixel coordinate 38/222 on the original house texture. Using the code above we get the following pixel index. var pixelIndex = ((222 / (1 * 1)) * 128) + (38 / 1) + 1; = (222 * 128) + 39 = 28416 + 39 = 28455 If we now zoom out to scale 0,5, the texture size will change to 64 x 128 and the amount of pixels will decrease from 32768 to 8192. Of course also our mouse point changes by the scale to 19/111. The formula makes it easy to calculate the original pixelIndex using our new coordinates: var pixelIndex = ((111 / (0.5 * 0.5)) * 64) + (19 / 0.5) + 1; = (444 * 64) + 39 = 28416 + 39 = 28455 But now comes the problem. If I zoom out just to scale 0.75 it does not work any more. The pixel amount changes from 32768 to 18432 pixels since texture size is 96 x 192. Mouse point is transformed to point 28/166. The formula gives me a wrong pixelIndex. var pixelIndex = ((166 / (0.75 * 0.75)) * 96) + (28 / 0.75) + 1; = (295.11 * 96) + 38.33 = 28330.66 + 38.33 = 28369 Does anyone have a clue what´s wrong in my code? Must be the first part (28330.66) which causes the calculation problem. Thanks! Yheeky

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  • How to switch to a generic kernel in a headless Ubuntu Server 12.04?

    - by chmike
    I just got a dedicated server with Ubuntu 12.04 installed with a custom compiled kernel. Since I would like to install VirtualBox and this custom kernel doesn't support dynamic module loading (for security) I need to change the kernel. I'm running some Ubuntu servers for years but never palyed with grub and a headless computer. When the command update-grub is run it shows the different kernel it finds. Here is what I see Generating grub.cfg ... Found linux image: /boot/bzImage-3.2.13-xxxx-grs-ipv6-64 Found linux image: /boot/vmlinuz-3.2.0-34-generic Found initrd image: /boot/initrd.img-3.2.0-34-generic No volume groups found done The first one is the active one as seen with uname -r. To me it looks like the second kernel is the one I should use. But I don't know how to configure grub2 to use it. The computer is also configured with a software RAID using mdadm I guess. Never used that before. I don't know if playing with the grub of changing kernel could brake this. What must I do to set the generic kernel as the default one so that I can get VirtualBox running.

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  • Intersection points of plane set forming convex hull

    - by Toji
    Mostly looking for a nudge in the right direction here. Given a set of planes (defined as a normal and distance from origin) that form a convex hull, I would like to find the intersection points that form the corners of that hull. More directly, I'm looking for a way to generate a point cloud appropriate to provide to Bullet. Bonus points if someone knows of a way I could give bullet the plane list directly, since I somewhat suspect that's what it's building on the backend anyway.

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  • Website loading until initial script finishes

    - by wardy277
    Hi, i have a highly used server (running plesk). I have some long scripts that take a while to process (huge mysql database). I have found then in 1 browser, i run the script and while it is loading i cannot view any other parts of the site until the script finishes, it seems that all the requests go off, but they don't get served until the initial script finishes. i thought this may be a server wide issue, but it is not. If i use another computer i can view the site fine, even on the same computer with a different browser i can navigate fine, while the script still loads. I think it much limit the number of requests per session. Is this correct? is there any way to configure this to allow for 2-3 other requests per session? It is really bad that when i am on the phone to a client, i have just run a long report, but cannot use the site or follow what they are saying until the page has loaded? Chris

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  • Paranoid management, contractor checking work [closed]

    - by user833345
    Just wanted to get some opinions and experiences on an issue I'm having at work. First, a little background. I've been working at a company for some time (past any probation periods) and rewriting a horrendous system. No tests, incomplete and broken functionality everywhere, enough copypasta to feed a small village, redundant code, more unused SQL tables than used ones and terrible performance. I've never seen such bad code, pretty much all of it is worthy of being posted on TheDailyWTF. The company has been operating for a number of years and have had a string of bad developers working on this system. I made a call on rewriting instead of refactoring since I judged it to be less work overall and decided that the result will address the requirements more appropriately, since the central requirement is to have a future-proof system for the next decade with plenty of room to scale up. Refactoring would have entailed untangling a huge ball of yarn and at the same time integrating it with a proper foundation or building a foundation from scratch. I've introduced the latest spiffy framework, unit & functional testing, CI, a bug tracker and agile workflow to the environment. I've fixed most of the performance issues of the old system (there were no indexes on any of the tables, for example). I've created an automated deployment process for the old system. The CTO has been maintaining the old system while I have been building the new one and he has been advising management that everything is being done as per best practices. However, management is hiring a contractor to come in and verify my work. In my experience, this is unprecedented. I can understand their reasoning to an extent, since they've had bad luck in the past, but can't help but feel somewhat offended at the fact that they distrust two senior developers who have been working with them for some time enough that a third party is being brought in. And it's not just me who is under watch - people's emails are constantly checked, someone had a remote desktop application installed on their computer of which I was asked to check the usage logs to try to determine if they were stealing sensitive data and there are CCTV cameras in one of the rooms. It's the first time I've decided to disable my Skype history at work. Am I right to feel indignant here? Has anyone else ever encountered such a situation? If so, how did it work out in the end? Was it worth sticking around? Should I just find another job?

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  • Graphics Card Compatability

    - by Aaron
    I am a first time builder and while I have the basic understanding of how to put a computer together, one final thing eludes me. What are the requirements for instaling 2 or more graphics cards on a computer? Example: EVGA 015-P3-1589-AR GeForce GTX 580 (Fermi) FTW Hydro Copper 2 1536MB 384-bit GDDR5 PCI Express 2.0 x16 HDCP Ready SLI Support Video Card ECS NGTX580-1536PI-F GeForce GTX 580 (Fermi) 1536MB 384-bit GDDR5 PCI Express 2.0 x16 HDCP Ready SLI Support Video Card I am not planning on buying either of these cards in the near future. I simply am using them as an example because of the number of differences. As I understand it these two cards will work together (given the proper motherboard) because the only thing that matters is that they are both GeForce GTX 580. Is my assumption correct? If not, why?

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  • how to restore grub

    - by takeshin
    During copying files via lan my Ubuntu Server 10.04 hung up and I had to reset the computer. After reboot, I got: Grub error 17, so I tried the rescue alternate CD, but I got a info, that no partitions were found on the disk. I used testdisk to restore the partitions. Using fdisk -l shows the partitions now, but when the system boots up I does nothing but displays: L234: When I plug the drive to another computer, it is not automatically mounted and I can't access the data. What to do now? How to restore the grub and boot up the system?

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  • Cannot open any web page, but MSN Messenger works

    - by Steven
    I use my computer behind a router. My MSN program can connect to the Internet, but I can not open any web site with my web browser. It seems that this problem is related to DNS because when I input an IP address directly in the address bar of my web browser, the web page can be displayed. However, I don't know how to fix this problem. I choose Google Public DNS server on my computer, this problem still exists. My OS is windows XP. How to fix this problem? Any ideas?

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  • Odd internet packet routing

    - by NachoChip
    I want to know is there anyway to explicitly control the packet routing. I try to connect my computer in HK from San Francisco. It is extremely slow and I use tracert to see what is going on. It seems the packet get routed from HK to Europe and then to New York and then to San Francisco. In US, I am using Astound Cable. Is there any suggestion I can force the packet to not go around the world before it reach my computer? Or it is all ISP dependent?

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  • What happens when you add a Graphics card to a i7 with build in graphics (e.g. HD 4000)

    - by Matt
    I'm thinking of upgrading my computer from an AMD Phenom II X4 955BE with a AMD Radeon HD 6800 Graphics card (not integrated) to using a Intel Core i7 3770. As I have no knowledge of integrated graphics, my question is, what happens to the computing power when not using the HD4000 integrated graphics of the CPU (does it mean the CPU will run faster then it would if I relied on it?) Also what is better the CPUs inbuilt HD4000 or my Radeon Graphics card? I am mostly interested in terms of content creation: Using Adobe After Effects, 3D Rendering etc. Not too bothered about gaming performance. I will be using the spare parts of this build and older systems to make a second computer for network renders so what will be the advantages of keeping the Radeon with the current system for that?

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  • I can't install libtiff on my 64-bit Ubuntu.

    - by marwa
    When I try to install libtiff on my 64-bit Ubuntu, I get the following error: sudo apt-get install libtiff Reading package lists... Done Building dependency tree Reading state information... Done Package libtiff is not available, but is referred to by another package. This may mean that the package is missing, has been obsoleted, or is only available from another source E: Package 'libtiff' has no installation candidate ubuntu@ip-10-119-97-123:/mnt$ libtiff-memcached libtiff-memcached: command not found

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