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• Laptop Function Key Dysfunctional

  - by Kanini

  My laptop has Windows Vista installed in it. Everytime, I switch on the computer, the function key seems to be enabled automatically. So, when I press i, 5 is displayed and so on and so forth. Now, I have checked and ensured that Function is key is not locked due to a faulty keyboard or coke spilling on it and suchlike. I am able to get out of it with the following key combination Fn + Ctrl + Ins (Num Lk) However, the next time I switch on my PC, the Function key is automatically enabled. Also, if my computer goes to sleep mode and comes back, it is enabled again. Anything that I can do to change this behaviour?

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• X forwarding over SSH from Mac to a Linux box

  - by Checkers

  I need run Mac applications on a remote Mac machine and display it on a local Linux machine's X server (a lot of articles on the Internet seem to be detailing how would you do it the opposite way). $ ssh -X mac-box $ cd /Developer/Applications/Xcode.app $ ./Contents/MacOS/Xcode Sat Oct 3 20:41:26 mac-box.local Xcode[15634] <Error>: kCGErrorFailure: Set a breakpoint @ CGErrorBreakpoint() to catch errors as they are logged. _RegisterApplication(), FAILED TO establish the default connection to the WindowServer, _CGSDefaultConnection() is NULL. ^C My $DISPLAY variable appears to be empty. What should it look like so that forwarding works correctly? Can I run OSX applications this way at all?

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• Hypervisor for mixed client and server OSes

  - by Mark

  I need to replace three old boxes I use for development, running Linux, Win Server and Win XP. Instead of purchasing three new boxes I am thinking of purchasing a single box and virtualizing the OSes. As it is for development, absolute performance is not a problem, but I want the Linux and Win servers to run continuously, while running Win 7 as if it is a regular PC. Therefore running Linux and Win Server on top off Win 7 is not an option. Is this a viable solution? Has anyone done this? What is performance like? I'd like to get decent graphics performance with Win 7, sufficient to run the occasional game. If so, I'm looking for suggestions or recommendations on which hypervisor or virtualization option to go for.

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• Bandwidth Control on our Internet Connection

  - by AlamedaDad

  Hi all, I have Covad dual/bonded T1 service in our office coming through a Cisco 1841 and then through a Sonicwall 3060Pro/Enhanced SW firewall. The problem I'm looking for some input on is how to limit the amount of bandwidth any single user/PC can user for downloading a file from the Internet. It's become an issue that when one person happens to download let's say an ~300MB file, normal internet access for the other employees slows to a crawl. I've seen through MRTG that in fact usage of the circuit jumps to the full 3mb for the duration of the download and then drops. Is it possible to control this? I'm not familiar with QOS or the like so I'm not sure. Any help on this would be appreciated. Thanks...Michael

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• Linux and GeForce 8400 dual monitor

  - by Andrea Polci

  I'm trying to install a linux distribution on my PC. I have a GeForce 8400 GS with two connected monitors. I tried with Fedora 12 and Ubuntu 9.10 (both 64 and 32 bit) and the live cd cannot boot properly. I don't get a visible error on Ubuntu, it simply hangs up during the boot. With Fedora I get this error: [drm] Modeset on unsupported output type [drm] Table 0x0000 not found for 1/1 using first I tried to disconnect one of the two monitor and was able to install on my HD and boot from there, but if I try to connect the second monitor again I cannot boot. Do I need to install something else? (a driver for my video card for example).

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• DIR 601 No wireless internet

  - by ashley

  I have an orange globe on my d link router. I signed into 192.168.0.1 and went to Manuel Internet Connection Setup as I was told to do. When I clicked on that and tried to clone my PC's MAC address, it said invalid MAC address. Host Name : DIR-601 Use Unicasting : (compatibility for some DHCP Servers) Primary DNS Address : 0.0.0.0 Secondary DNS Address : 0.0.0.0 MTU : (bytes) MTU default = 1500 MAC Address : F8:1E:DF:EA:38:E6 How do I get a valid MAC address so I can save the settings and move on to the next steps I was told to do in order to get wireless internet again?

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• What VNC (or similar) software for Windows 7 Home allows me to control my parents’ computer remotely as an administrator user?

  - by Paul D. Waite

  Here’s what I dream of: I install Windows 7 Home on my parents’ PC. They have a regular user account that they use, meaning they can’t install anything. I have an administrator account, meaning I can install things for them. I install some sort of VNC software on their machine that lets me access their computer remotely under the administrator account, so that I can install software for them (or do other administrator tasks, e.g. updates) without actually going to their house. Is there any VNC or VNC-like software that supports the above? (I guess I might be better off buying them Windows 7 Professional, and using Remote Desktop. At some point I’ll give up and get them an iPad, but for now, remote Windows admin is the dream.)

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• Terminal services and memory limits

  - by Mark Wassell

  Is there a way in Terminal Services to set limits on memory related parameters for a process. For example working set size and, possibly, if it makes sense, total virtual memory allocation for the session? To turn the question around, we have an application which cannot allocate as much virtual memory running on a terminal server as it can when running on a desktop PC (both I would expect to have a limit of 2GB for user mode address space) and I was wondering if there is another limit for processes or users on a terminal server. Perhaps even 2GB per user rather than per process.

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• Linked Tables not working With Access Database

  - by Kronass

  Hi, I have an Access database in a computer and I want to access it from other computer in the network. so I made mapped drive and created Linked Tables, then Imported all the objects (forms, queries, reports). when I open access database in the second computer and make any changes in using the forms non of the changes are affected in the main computer (supposedly server) and vise-versa. what am I missing? if this way will not work how can I access the Access database from other computer in the network and be able to use all the objects and make changes in it? hint: Access Version at main computer is 2003 and client pc 2007, will it effect?

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• Internet not working on a VirtualBox Linux machine

  - by mtahmed

  I installed VirtualBox on a Windows 7 PC and installed Xubuntu (Ubuntu with XFCE) on it. Now on the Windows, I am connected to the internet through a LAN which automatically authenticates to connect to the network(because its my work computer). I have also installed the guest additions on this virtual machine (Xubuntu). I tried both NAT and bridging to set up internet connection but I still cannot connect to the internet. For NAT: The browser doesn't say website not found but it keeps trying to load it forever and the network status monitor (the one provided by VirtualBox) doesn't show any green light (no incoming packets). For Bridging: Same as for NAT but the network status monitor shows incoming packets and outgoing packets. But internet still doesn't work. I tried a lot of different things but none worked.

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• Disk boot failure, insert system disk and press Enter.

  - by torbengb

  Similar to this related question, I came home and found that my media center pc showed this message, Disk boot failure, insert system disk and press Enter Before I do anything with the (defective?) harddisk, what are the best first steps I can take to fix this with a minimum of damage? Normally the machine (Win Vista) is always on and never reboots by itself (Windows auto-updates are disabled too). Something must have caused it to reboot, though I'm sure we didn't have a power outage. The machine can't reboot on that disk, but it will boot on another disk I just plugged in for testing. I haven't changed anything, or even touched the machine, for several days, and it has been running fine until now. I did replace the power supply some weeks ago, because the old one suddenly stopped working. It has been working fine with the replacement PSU.

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• Mutli-processor workstation as a workstation/server

  - by posdef

  I work in a research institute and a number of programs we use are computationally intensive (I actually wrote one of them). Right now we have one computer that is dedicated for one of these programs (with local accounts only, as in users physically sitting in front of that pc) and the other programs are run on individual workstations assigned to people. I have been looking around to common brands such as Dell and HP, for a some sort of a small/medium scale server, which can be used as a workhorse by sending tasks remotely. It appears as if there is nothing in between workstations with one 6-core processor and a bunch of extras (like fancy graphics etc) and rack mount servers with ridiculous amount of RAM and HDD expansion capabilities but still relatively little number of processors/cores. I wonder if what I am looking for is such a small niche product? Are there other solutions that I might not be aware of? Does anyone know of a multi proc- multi-core workstation/server that is still within the reasonable

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• Why the huge difference between etch and lenny MySQL

  - by rmarimon

  I've been working on a program for the last year. The development environment is working with a database in MySQL running on debian etch version mysql Ver 14.12 Distrib 5.0.32, for pc-linux-gnu (i486) using readline 5.2. The production environment is working on debian lenny with version mysql Ver 14.12 Distrib 5.0.51a, for debian-linux-gnu (i486) using readline 5.2. I was just timing some database access and what takes in the development environment 150 seconds, takes 300 in the production environment. I checked the /etc/mysql/my.cnf files on both systems and the only differences are # development bind-address = 10.168.1.82 log_bin = /var/log/mysql/mysql-bin.log # production bind-address = 127.0.0.1 myisam-recover = BACKUP #log_bin = /var/log/mysql/mysql-bin.log I dump a database from the production and load it into the development and with the same server everything takes half the time !!! What should I check?

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• What is the best way to configure Apache or AWS to support a Rails multi tenancy application that allows each customer to have their own domain name?

  - by Ryan Arneson

  I'm building a Rails 3 SaaS site that allows for multi-tenancy. When a customer signs up they put in their own domain name, e.g. example.com. I need example.com to point to my SaaS application and serve them their content. My questions are as follows: Do I need to create an Apache vhost for each customer using their own domain? Is there an easier way with CNAME's to just have the customer point to the IP address of my server(s) that then forwards the request onto my application through some catch all vhost? Would I be able to create the CNAME record for the customer so they don't have to do any setup? Would this be a case better suited to Amazon Web Services? Any help or explanation or corrections on my understanding of dns would be appreciated. I'm a developer so the server ops portion of this is a bit cloudy.

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• IIS 7.5 401.3 Access Denied

  - by Jeffrey

  I am having this weird issue with IIS 7.5 on Windows 2008 R2 x64. I created a site in IIS and manually created a test file index.html and everything worked. When I try to do a deployment, I copy all the files from my local PC to the IIS server, try to access index.html (this is the proper deployed file) and getting 401.3 access denied error. I then try to manually recreate index.html and copy content into this newly created file and the page is accessible again... I just can't figure this out. So the issue is that IIS 7.5 can't server files that have been copied from other PCs. I tried to reset/apply permission settings to the copied folders/files but nothing has worked. Please help. Thanks! By the way, the files that I copied are just some html cutups i.e. generic html, css and image files, nothing special.

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• Work firewall blocking Gmail IMAP port

  - by Sean

  My work has a very over protective firewall. We use Google Apps for our email and so can access the web interface just fine. I use my laptop at work however (MacBook connected via WiFi through my AirPort Express), and prefer to use Sparrow to check my email. The problem is that our firewall blocks whatever port Gmail's IMAP server uses. I'm trying to figure out the easiest way to work around this. I'm guessing I'll need to use an SSH tunnel or VPN, but I'm looking for specific instructions. I'd prefer to only route the IMAP stuff around the firewall as opposed to using a VPN full time. I have two computers at home (one PC, one Mac Mini) that are always on and could probably act as a server if needed.

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• How can I share a printer and files on a Windows network over wifi

  - by Jacques

  What is the easiest way to create this setup: WiFi internet router separate in one room. Study room: Laptop with USB printer connected with wifi. My room: Laptop connected with wifi. I want to be able to print from the "My room" laptop to the "Study room" printer, and also share files between them. What is the easiest way to do this? Note, the wireless router needs to be in a separate room for both laptops to be able to connect to it. I've tried configuring homegroups and stuff to do with IP addresses that I found on the internet but have had no success. I'm not an expert with PC's but I've tried hard so there is probably just some trick to do it. If someone can help that will be great.

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• Mac OS X vs. Windows mouse wheel scrolling

  - by Znarkus

  Mac OS X determines what area to scroll by the mouse position. Windows does this by what application is active. So I thought anyway. If Notepad++ is the active application in Windows, I can scroll underlying applications by placing the mouse pointer on them. But this seems like the only application with this behaviour. Windows Explorer (Win7) doesn't even allow scrolling in the side pane if the pane is not active. My question is, can this be controlled by developers, and why is Windows behaving like this? I am not about to make a Windows application, but as a developer this makes me curious (and annoyed).

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• Changing an MSSQL clustered index field from containing "random" GUIDs to sequential GUIDs - how wil

  - by Eyvind

  We have an MSSQL database in which all the primary keys are GUIDs (uniqueidentifiers). The GUIDs are produced on the client (in C#), and we are considering changing the client to generate sequential (comb) GUIDs instead of just using Guid.NewGuid(), to improve db performance. If we do this, how will this affect installations that already have data with "random" GUIDs as clustered PKs? Can anything be done (short of changing all the PK values) to rebuild the indexes to avoid further fragmentation and bad insert performance? Please give explicit and detailed answers if you can; I am a C# developer at heart and not all too familiar with all the intricacies of SQL Server. Thanks!

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• Is this a graphics card failure?

  - by Alexander Lozada

  I own an older 32-bit Dell XPS 410 that I intended to use for gaming. Currently, I have a ATI Radeon 4000 series card installed, along with a Core 2 Duo and Ubuntu 12.10. I'm fairly certain that my problem is a GPU failure - but before I spend money on a new one, I want to make sure other components aren't the problem/if it would be cheaper just to buy a new PC. Here are my symptoms: Computer power button remains orange (usually green when successfully started.) A fan gets increasingly faster until powered off. Monitor remains black when started, receiving no signal. When powered on, the computer will power itself off near instantly, and then turn on again. If startup is successful, sometimes the screen will become jittered and unusable unless restarted. Is this just a GPU failure, or something more extensive like the motherboard?

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• UNRAID V4.7: Lost write permission on Win7/Android devices

  - by JROC

  I'm currently running V4.7 and I haven't touched any of the user or share settings, and I'm periodically losing read.write permission on both my windows 7 pc and my android tablet connecting over the wireless. Sometime I can access my shares and see the folder directories, but when attempting to open a folder windows denies me access saying I don't have the proper permission. This is after I have logged in with my main account that has full read/write access of everything, same on my android device. This all started when I attempted to delete a large amount of files (8gb) to make more room and about half way through started getting permission errors. What could be causing this? Thanks

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• UNRAID V4.7: Lost write permission on Win7/Android devices

  - by JROC

  I'm currently running V4.7 and I haven't touched any of the user or share settings, and I'm periodically losing read.write permission on both my windows 7 pc and my android tablet connecting over the wireless. Sometime I can access my shares and see the folder directories, but when attempting to open a folder windows denies me access saying I don't have the proper permission. This is after I have logged in with my main account that has full read/write access of everything, same on my android device. This all started when I attempted to delete a large amount of files (8gb) to make more room and about half way through started getting permission errors. What could be causing this? Thanks

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• How much processor speed and cores do I need for these tasks?

  - by ajay

  I am planning to buy a new laptop as I find my current one very slow. My question here is specifically related to RAM size and CPU power. I will mostly be doing development (not much games). I would be dabbling in distributed computing, multithreaded and data intensive parallelizable tasks on multi-cores. For e.g. I would want to be able to Concurrent programming in Scala/Java/Clojure etc. and be able to see parallelization. Furthermore, I would want the RAM to be enough. But from a developer machine standpoint, do you think 4GB RAM and 2.53GHz Dual Core processor would be enough. I'm basically looking at this model: http://store.apple.com/us/configure/MC118LL/A?mco=MTM3NDcyODk (link dead)

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• Config xampp never to cache pages from localhost

  - by Michael Mao

  Hello everyone: I am not a webmaster, and that was exactly the reason why I installed XAMPP 1.7.2 on Windows XP SP2 instead of manually configuring Apache, MySQL and PHP to cooperate each other. Now I am having to problem to disable caching pages from localhost. Some suggested just force the browser not to cache, using Firefox web developer bar or something similar; but I feel it would be better if I could configure the Apache server in XAMPP to never allow pages from localhost to be cached. I guess this is done somewhere in httpd.conf? LoadModule cache_module modules/mod_cache.so Would this module be helpful in this case? Doc here : mod_cache I am not very sure this would resolve the problem. Could anyone confirm this approach feasible? I'd like to work it out myself, given the fact that I am on the right track... Many thanks in advance

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• Windows detected a hard disk failure* - what should I do?

  - by bart

  I'm using Windows 7 x64 Ultimate, I'm getting windows error popups like this one for about 3 days, multiple times a day: This Samsung SpinPoint F3 HD502HJ 500 GB is about 2 years old and I already checked it with Samsung ES Tool 3.0, did all the scans (took hours) and everything is fine! I have no malware, viruses and this started to happen after I have had some electrcity issues at my house (multiple power surges / overvolatege during the night, PC was connected, but turned off), any ideas? What other test should I perform? I believe the disk could be damaged, but then diagnostic tools should prove this, right? *in fact "Windows detected hard disk problem" but I was unable to put word "problem" within the title as well.

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