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  • Economize Your Web Development Effort

    If you've locked yourself away in a dark room, subsisting on coffee and pizza while you develop the website that's going to allow your business or idea to revolutionize the world, then stop right now, open the curtains, take a break and read this. First off, it's likely that whatever your trying to design or create has already been done in one form or another - even if your application is completely unique, the vast majority of your website will still have attributes that are common to other websites.

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  • I upgraded ubuntu to 12.10, and the internet does not work on vbox

    - by user100607
    Last week, I upgraded my operating system to Ubuntu 12.10 from 12.04, and the internet stopped working on two virtual machines (launched with virtualbox), Windows XP and OSX Snow Leopard. OSX also stopped working completely at first, but I fixed that by switching to the 64 bit option in the vbox settings. I switching to bridged networking from NAT restored the internet to Windows, but not to OSX. Does anybody know what I could be doing wrong?

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  • Making the WPeFfort

    Microsoft Visual Studio 2010 will be launched on April 12th. The basic layout looks pretty much as it did, so it is not immediately obvious on first inspection that it was completely rewritten in the Windows Presentation Foundation (WPF)....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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  • Increasing Site Traffic Through Interactive Marketing

    Many of the usual advertising methods are no longer working on the everyday audience. People tend to avoid being advertised to, or ignore these ads completely, and many advertisers are taking note of this. Utilizing Internet advertising channels and campaigns are essential to establishing your brand and getting in touch with customers, even if you do not sell your products or services online.

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  • Why SEO is Important For Your Website

    Usually there is a perception that it is gratifying to see the website in search engine first results when you enter the company's website name (also known as domain name). In fact, the above is completely pointless and has no value.

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  • Rebuilding array on 3ware 9690SA-8I

    - by Tim Jones
    I have a RAID10 (8x1TB) array on a 3ware 9690 card running on an Ubuntu 1110 server. There was a kernel update so I scheduled a reboot after which the array was inaccessible. I checked the status a drive has died in the array, but the controller has thrown the entire array into an 'inoperable' state instead of simply degraded (what's the point of the RAID now ;-). After taking out the 'dead' drive I run a quick test to find it completely functional without a bad sector to be found. I try to put the drive back in but the array still marks the disk as degraded (remembering serial number or something??) and the entire array as inoperable... So I swap it out for a known working drive (not the same capacity but higher - should still work) and initiate a rebuild with the the new drive as a replacement. This fails instantly with the error "(0x0B:0x0033): Unit busy : Failed to start Rebuild on Unit 0". The unit shouldn't be busy as it is not mounted (the card itself is listed with lshw but the array it provides is not). I'm pretty much at an impasse now, I don't understand how I can have a single drive failure on a RAID10 that makes the entire array inaccessible, degraded I could understand but inaccessible?? I don't think the controller as prior to the reboot it was completely functional.

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  • Broken Creative DTT3500 Digital

    - by djechelon
    Hello, many years ago I bought a Creative DTT3500 Digital surround speakers system. It's been a while since my home theatre started behaving strange. During the past 6 months, I have noticed that the amplifier needed some time before correctly playing digital audio. Until a couple of weeks ago, it needed up to 5 minutes of very noisy "warm up" before playing an "almost" clear audio. Today, I found that even using the analog input (completely disabling digital inputs) the noise persists. Powering off and on the speakers doesn't work. Now, it's reasonable that after almost 10 years, the amplifier got broken. My problem is that I can't simply replace the speakers with another kit from another brand, since 2 speakers in my room are placed in the back wall, with coaxial cables going under the floor but not completely inside a single tube. I mean, I have coaxial extension cables starting from the DTT3500 amplifier, going into the wall, then under the floor in a plastic cable tube, then exiting the tube (still under the floor), connecting to the male coaxial connector of the original cable supplied by Creative, and continuing up to the point close to my bed where the speakers are. I could replace the speakers **only as soon as the new speakers have the same coaxial to bi-polar cables that Creative ships with DTT3500 Another option might be "repairing the amplifier", but I don't know if it's feasible, what should I or a technician look for in the amplifier, and how much would it cost (is it worth to repair or buy a new kit considering the problem above? What do you suggest me to do, basing on the above observation? Thank you.

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  • 500 Internal Server Error after changing .NET Framework Version to 4.0 in IIS7

    - by René
    I just changed my .NET Framework Version of the Application Pools in IIS7 Manager, following these instructions. Now when I try to re-upload my ASP.Net page, it shows me a 500 - Internal server error. I have tried uploading it in .net 2.0(X86, X64, AnyCPU), and 4.0(X86, X64, AnyCPU), and everything gives the same error. This is all the details the error gives me: "There is a problem with the resource you are looking for, and it cannot be displayed." When keeping the .NET version on 2.0 on the server, it works just fine. Also, when uploading "index.htm", it works fine as well, it just shows the HTML page. This is on Windows Server 2008 R2, by the way. EDIT: I have finally found out how to get the error details. Here they are: "Handler "PageHandlerFactory-Integrated" has a bad module "ManagedPipelineHandler" in its module list." "Most likely causes: •Managed handler is used; however, ASP.NET is not installed or is not installed completely. •There is a typographical error in the configuration for the handler module list. Things you can try: •Install ASP.NET if you are using managed handler. •Ensure that the handler module's name is specified correctly. Module names are case-sensitive and use the format modules="StaticFileModule,DefaultDocumentModule,DirectoryListingModule"." I am sure that I have installed ASP.NET completely. Please help me, -René

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  • How to use most of memory available on MySQL

    - by Zilvinas
    I've got a MySQL server which has both InnoDB and MyISAM tables. InnoDB tablespace is quite small under 4 GB. MyISAM is big ~250 GB in total of which 50 GB is for indexes. Our server has 32 GB of RAM but it usually uses only ~8GB. Our key_buffer_size is only 2GB. But our key cache hit ratio is ~95%. I find it hard to believe.. Here's our key statistics: | Key_blocks_not_flushed | 1868 | | Key_blocks_unused | 109806 | | Key_blocks_used | 1714736 | | Key_read_requests | 19224818713 | | Key_reads | 60742294 | | Key_write_requests | 1607946768 | | Key_writes | 64788819 | key_cache_block_size is default at 1024. We have 52 GB's of index data and 2GB key cache is enough to get a 95% hit ratio. Is that possible? On the other side data set is 200GB and since MyISAM uses OS (Centos) caching I would expect it to use a lot more memory to cache accessed myisam data. But at this stage I see that key_buffer is completely used, our buffer pool size for innodb is 4gb and is also completely used that adds up to 6GB. Which means data is cached using just 1 GB? My question is how could I check where all the free memory could be used? How could I check if MyISAM hits OS cache for data reads instead of disk?

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  • ClearType setting ignored in Windows Virtual PC with Windows XP Pro

    - by Yadyn
    I have a VM set up through Windows Virtual PC for Windows XP Pro and I have been completely unable to get ClearType to work. I have turned it on in the Display - Appearance - Effects dialog but it seems like it completely ignores this. All text is still without any anti-aliasing. Even setting it to normal smoothing doesn't work. If I disable Integration Features, it seems to work, but then I lose a lot of nice features. What's weirder, is that the Windows XP Mode installed with Windows Virtual PC (this is separate from my XP Pro VM) works with both ClearType and Integration Features just fine. I turned it on the same way and it works like a charm, no problems. I'm running Windows 7 Professional 64-bit as the host OS and have the latest (to my knowledge) Windows Virtual PC installed. The only funny business I can think of is that I've enabled 24-bit color via the Group Policy setting inside each XP virtual machine (both Pro and the stripped down XP mode copy). This is a fairly well-known trick documented all over the web, but here's a typical post about it.

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  • Get details / solve issue with a kernel panic?

    - by Joseph
    I have a Lenovo T430 running Linux Mint 13 (MATE): joseph:~$ uname -a Linux joseph-T430-LM 3.2.0-23-generic #36-Ubuntu SMP Tue Apr 10 20:39:51 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux I installed Mint immediately after getting the laptop about two weeks ago, and have noticed that about once a day, the computer will completely freeze up- I can't use Ctrl+Alt+Backspace to restart X, I can't use Ctrl+Alt+F1 to get a text only terminal, can't move mouse, can't type, and if any music was playing it just gets stuck in about a 1-second loop. There is a Windows partition, but I haven't had any issues in Windows. I couldn't find a common thread between the freezes, they were seemingly random (sometimes right after I clicked the mouse, sometimes not; sometimes with Pandora/flash being used, sometimes not, etc). I assume they're kernel panics since it completely locks up, but the laptop doesn't have a capslock or scroll lock LED. It is on a dock and I do have a USB keyboard, but the scroll lock/capslock lights do not flash when it happens (not sure if this is indicating its not a kernel panic, or if the kernel panic just wouldn't illuminate the LEDs on a usb keyboard attached to a laptop dock). This was annoying but not terrible. However, I've found a way to reproduce it. I have a particular CSV file that when I open up in LibreOffice Calc and scroll around, the same thing happens- complete lock up. I really need to use this file, so I'd like to fix the issue, but at the least it's given me a test case to work with. So, having a case where I can cause this issue, what can I do to better find out what's going on? I've looked in /var/log/syslog but haven't found anything seemingly useful. Any thoughts?

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  • Server hang - data loss on reboot, post mortem analysis

    - by rovangju
    A development server I'm responsible for (ext3 on raid 5 w/Debian Squeeze) froze up over the weekend and I was forced to reset it, as in unresponsive from KVM/physical keyboard access, no eth devices responding, etc. Not even the backup process ran (Figures, the one time I don't check for confirmation) So after the reset, it turns out that every trace of disk IO activity that should have happened for a period of ~24H is completely gone. The log files have a big gap in the dates and times. As if the writes were never committed to disk, no processes seemed to have run. Luckily it was a weekend and nothing of value would have been lost and I don't suspect a hack. What can I do in post mortem to this event - to prevent it from ever happening again? I've seen this happen before on a completely different machine running FreeBSD. I am rounding up the disk checking tools right now - but there must be more going on! Mount options: /dev/sda1 on / type ext3 (rw,errors=remount-ro) Kernel: Linux dev 2.6.32-5-686-bigmem Disk/Inodes: 13%/3%

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  • Asus n61Ja notebook bios update

    - by zKs
    I wanted to update the bios, with an official bios update, from version 207 to 211. I didn't use winflash, I used easyflash in the bios. Everything seemed to be going okay; it deleted the old files, wrote the new ones, verified the new ones. Then it said: shutdown in/after 2 seconds and it shut down. Then nothing happened anymore. Power button completely unresponsive. The battery light was still on, and I'm not sure if I should've just waited... I didn't though, I thought I had to remove the battery, take the power off completely to be able to start it up again. So I'm wondering: what are my options here? My warranty expired and I don't really have the money to send it in and pay hundreds of bucks on repairs. Is there anything I can try? CMOS battery reset? Anything??? Please help me out! I would be very grateful :) ps. What was sort of odd btw, was that easyflash said something like that it was an unsigned bios and if I wanted to flash it anymore, if i wanted to 'force' it or something. It was with 100% certainty the correct update from the Asus.com support site, so I didn't take that 'warning' seriously.

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  • How to disable auto insert notification in Windows 7?

    - by White Phoenix
    Alright, here's the problem. My hard drive activity light on my custom built PC is blinking exactly once every second. Microsoft has this to say on the issue: http://support.microsoft.com/kb/138598 There has been discussion on this issue several months ago: Why does my hard drive LED light blink every second? The problem seems to stem from primarily Windows 7 polling the CD-ROM/DVD drive every second to see if something is inserted. The Windows 7 users in the thread that was linked in the superuser question, https://social.technet.microsoft.com/Forums/fi-FI/w7itprohardware/thread/4f6f63b3-4b58-4154-9298-1566100f9d00, have confirmed that this IS a known issue with Windows 7. Some people point at the motherboard circuitry causing the CD-ROM and SATA activity to both be linked to that hard drive activity, but whatever the case, the temporary solution seems to be to disable the CD/DVD-ROM drive in Device Manager. In fact, disabling the CD/DVD-ROM does stop the blinking, but of course this solution is counterproductive, because I shouldn't have to entirely disable a device to fix this problem. I've done the following suggestions in that thread: Change the autorun registry entry to 0 Completely disable autoplay in the autoplay control panel Disable autoplay in the Local Group Policy Editor. None of these stop the blinking from happening - apparently these solutions work for both XP and Vista, but it seems to be different in Windows 7. So I'm wondering if anyone has found out how to completely disable the polling in Windows 7, or if this will just have to be an issue we will have to deal with. There's no option to disable the auto insert notification when you go to the device within device manager (there was in XP), so I got no idea where this option is hidden, or if there's a registry key entry I could change to stop the polling. Anyone have any idea?

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  • Howto: SaaS / PHP Application / Tenants / Security

    - by Ben Fransen
    Hi all, Being completely new in the webhostingcorner I have a few questions on how to implement/setup a webserver for a SaaS application. I'm about to rent my own server for a new product (CMS) I'm launching in two months. Developing the system wasn't that much of wild ride to me, but a correct way to implement it, is. So lets say this is my situation: I want to host 10 websites for 8 clients. There are 6 single sites, and two clients have two websites they can manage with my software. The CMS must be placed on the server too, all clients are connecting to 1 system The database must be placed Depending on the contract a client makes, the client gets some storage. How to measure the used storage over the DB, FileSystem and email Clients may not, in any case be able to somehow get outside their directory, but from the CMS directory the CMS must be able to create files and dirs in a clients directory (for templates, imagegalleries, widgets, etc, etc). I was thinking about something like a dirstructure like this: ./CMS/ [all CMS files] ./Websites/*/ [all websites] My hostingprovider will install updates to the os (CentOS, latest) and the admin panel (Direct Admin). Is there anybody with experience on this topic? Or do you have some thoughts about it? please join the conversation since I'm completely new to this. Ben

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  • How to rewrite these URLs?

    - by Evik James
    I am brand new to URL rewriting. I am using an Apache rewriting module on IIS 7.5 (I think). Either way, I am able to do rewrites successfully, but am having trouble on a few key things. I want this pretty url to rewrite to the this ugly url: mydomain.com/bike/1234 (pretty) mydomain.com/index.cfm?Section=Bike&BikeID=1234 (ugly) This works great with this rule: RewriteRule ^bike/([0-9]+)$ /index.cfm?Section=Bike&BikeID$1 Issue #1 I want to be able to add a description and have it go to exactly the same place, so that the useful info is completely ignored by my application. mydomain.com/bike/1234/a-really-great-bike (pretty and useful) mydomain.com/index.cfm?Section=Bike&BikeID=1234 Issue #2 I need to be able to add a second or third parameter and value to the url to get extra info for the db, like this: mydomain.com/bike/1234/5678 mydomain.com/index.cfm?Section=Bike&BikeID=1234&FeatureID=5678 This works using this rule: RewriteRule ^bike/([0-9]+)/([0-9]+)$ /index.cfm?Section=Bike&BikeID=$1&FeatureID=$2 Again, I need to add some extra info, like in the first example: mydomain.com/bike/1234/5678/a-really-great-bike (pretty and useful) mydomain.com/index.cfm?Section=Bike&BikeID=1234&FeatureID=5678 So, how can I combine these rules so that I can have one or two or three parameters and any of the "useful words" are completely ignored?

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  • Xp SP3 - Non-Functioning

    - by Josh
    Ok Here is a crazy problem, I have a HP dv6000 Laptop that can no longer hold a charge, so I hooked it up to my TV, bought a wireless mouse and keyboard and configured xp to run with the lid closed, It has medium to heavy usage mainly just streaming from sites like Netfilx, Hulu, ABC, etc. And playing movies I ripped of dvd. It ran fine for a while but recently it has been having some weird problems: Problem one: I used to use firefox but now when run it I can type but as soon as I click something it just shuts down, completely, I can't even close it unless I use taskmanager to do it. So I went and got google chrome which is better but still hit or miss, but never completely shuts down, I just can't click anything or type anything, or sometimes I just can't type anything or vice versa. Also when I open a new tab, and try to move back to my old one, it automatically closes the old tab when I click on it. Problem two: When using the internet I can't use any other application or anything windows (ie. Windows explorer) until I force quit all browsers with taskmanger. The reason I can't run anything is because I can't click on it. Problem three: When I try to play a movie (with vlc) Once it starts playing I can't click on anything, but I can use hotkeys, and once it stops everything is fine again. Well I hope somebody knows whats going on because I have no clue, If you need clarification or more info on something I would be happy to provide it...

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  • Is it possible to have a wireless in-house NAS with wireless data transfer rates of equivalent to SATA speeds?

    - by techaddict
    Basically I would like to know, if it is possible to set up an NAS in my house to be accessed wirelessly, that can reach equivalent real-life data transfer speeds to USB 3.0 or an internal SATA hard drive. I have been wanting to do this for some time ( a couple of years now). Basically, this is what I want to do: Plug in a number of hard drives in an array, somewhere in my house, to be left plugged in and never have to be monitored. Ideally several terabytes. Whenever I am home, to have my computer and laptop configured to automatically find the NAS, as easy as plugging in an external hard drive - except completely wirelessly. Data transfer needs to be as seamless and quick as having added another internal hard drive in my laptop. Moreover, data should be able to accessed without having to copy it over - I should be able to wirelessly access the NAS and browse files, and open files directly from the NAS. For example, say I wanted to open a video - I should be able to play the video that is located on the NAS, directly from the NAS, completely wirelessly. If I wanted to open a .pdf file, I should be able to open it and read it directly from the NAS, as if it were located on my physical internal hard drive. Cost is important as well. Please tell me what equipment I need for this to be possible. I know you geniuses out there who can tell me if this is possible.

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  • What's the state of the art in image upscaling?

    - by monov
    I like to collect cool pics and use them as wallpapers or for other things. Often, artists publish only low-res versions, probably for fear of theft. Example: Gabriel Pulecio's BIRDS Now, if I want to use that as a wallpaper, I'd have to upscale it, and obviously that'd make it look blurry because of the bicubic interpolation. I realize there's no real way to get a high-res version from a low-res pic, because the information is not simply there. That said, I'm wondering if heuristics have been developed for upscaling with less apparent loss of quality. Those would probably be optimized for specific image types. For photorealistic pictures, for cartoons with large flat areas, for pixel art... One algorithm I'm aware of is Seam Carving. It works for some kinds of pics, especially ones with a plain, undetailed or uninteresting background, and a subject that strongly stands out. But it's far from being general-purpose. Applying it to the above pic produces this. It looks quite sharp, but the proportions are horribly distorted because the algorithm is not designed for this kind of pic. Another is Pixel art scaling algorithms. Those are completely unfit for anything other than actual pixel art that's pixelized to begin with. For example, I tried the scale2x windows binary on my pic, but its output was nearly indistinguishable from nearest-neighbour scaling because the algorithm didn't detect any isolated pixely fragments to work from. Something else I tried was: I enlarged the image in Photoshop with bicubic interpolation, then I applied unsharp mask. The result looks pretty bad. The red blotch is actually resized reasonably well, but the dove is far from it. What I'm looking for is some app that makes a best-effort attempt at upscaling any input image while minimizing blurriness. If you know of any, I'll be thankful. Note that the subjective prettiness and sharpness of the result is what matters... the result doesn't need to be completely faithful to the original small image.

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  • Unix Permissions: Enable access to files no matter the user?

    - by TK Kocheran
    I've been using Linux for a long time and I still am completely in the dark about how file permissions really work. With that in mind, does anyone have any books or thorough guides I could read to really understand things completely? I've done my fair share of sysadminning, so I know the easy stuff like making directories readable and writable, making files executable, and changing the owner of a file, but on sharing files across users, I'm lost. Here's my main problem. I have a number of machines across which I intend to synchronize my music library. I've been using Unison for a while now and it's a great choice as I can easily run it over SSH on my local network which I just set up. Win-win. Up until this point, I've been synchronizing computers using a 2TB external hard drive. (computer 1 unisons to HD, computer 2 unisons to HD, etc.) This is tedious at best, especially since I encrypted the drive, making it a huge hassle to hook it up to all of my machines and sync it. Anyway, the drive is running ext4 (in TrueCrypt), so it maintains all Unix filesystem info like owners and groups. I just set up a new machine and just Unison'd it to get the music on it, and I realized that now, all of my permissions are fubar. I had to run Unison as root since that was the only way I could get the files to come off of the external drive. Apparently, since I'm using a different user name on this machine than my usual "rfkrocktk" across all machines, this essentially throws a huge wrench in the gears. Here's my use case. This laptop has two effective users, "leandra" and "rfkrocktk". I want to share music between these two users, so I symlinked /home/rfkrocktk/Music to point to /home/leandra/Music. How do I (a) allow both users access to read/write/delete files in this folder, and (b) keep everything nicely in sync without messing up file ownership?

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