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• How many xml http requests is too much for a pc to handle?

  - by Uri

  I'm running mediawiki on an apache on a regular pc running vista (don't know the specific specs, but I'm guessing at least duo core 2 2 giga hertz processor, broadband connection (500 kb/s at least, probably 1 mega). I want to use the MediaWiki api to send a lot of requests to this server. Most of the time the requests will be sent through LAN (but sometimes through the internet). I'm talking thousands of requests every few seconds at worst case. (A lot of these requests may repeat themselves, I guess some sort of cache would help) Will the server handle this, or do I need a stronger/dedicated computer? (I'm not looking for specific yes/no, but just want to get an idea as to what configuration of computer will support how many request per second) Thanks

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• How does a frame retrieve the recipient's MAC address?

  - by Sarmen B.

  I am studying a Network+ book named All-in-one CompTia Network+ by Mike Meyers. In chapter 2 he talks about frames and how he represents them as canisters and the data within the frame contains the recipients mac address, senders mac address, data, and sequence number. What I don't understand is if the sender is sending a file via the network to the recipient, and this frame contains this data, how does the frame know what the recipients MAC address is before sending it? In regards to TCP/IP when it contains the recipients IP address, that's understandable how it retrieves that value. But I don't understand how it can retrieve the MAC address, because if that frame comes from the senders computer, goes into the router and copies itself to each and every computer that exists on the network, how did it have the MAC address to know where to go? Let me know if I'm not making sense.

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• Multiple "setups" on windows 7

  - by Roberto

  I would like to create multiple setups on Windows, that is, when I'm working with my computer I have some programs opened, after that I would like to change the setup/user to the "gaming setup" where the previous setup would hibernate and the computer would have all the resources free for me to play. I could have opened multiple tabs on firefox on each setup and they would be there when I come back. I understand that windows' switch user would make the programs run when I'm with the other user and that's not what I want. So, is that possible?

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• pscp: how to copy a file from a windows machine to a non-home location on another windows machine?

  - by help

  I want to copy a file from C:\temp on MachineA to C:\final on MachineB. I tried to use the following command, but it gave me an error (permission denied): C:\PROGRA~1\putty\pscp.exe -i C:\PROGRA~1\cwRsync\home\rcadmin\.ssh\id_rsa_private.ppk [email protected]:C:\final\test.txt C:\temp\test.txt It turned out I can only access C:\users\direcpc in my source computer. So if I put the file in C:\users\direcpc\text.txt, then it would work: C:\PROGRA~1\putty\pscp.exe -i C:\PROGRA~1\cwRsync\home\rcadmin\.ssh\id_rsa_private.ppk [email protected]:/test.txt C:\temp\test.txt But I want to access any location on my source computer instead of just my user home directory, is there a way to do this?

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• Help! Problem dual boot ubuntu windows8 (can't start ubuntu) [duplicate]

  - by a35

  This question already has an answer here: Installing Ubuntu on a Pre-Installed Windows 8 (64-bit) System (UEFI Supported) 5 answers EDIT: I know that there are many topics about dual boot ubuntu windows8, i have read them, my problem is that i cant boot ubuntu neither from HDD nor from live USB. I know about boot repairing, but how can I use it, If i cant boot ubuntu?? I heard about terrible problems with windows 8-linux dual boot, but I really need ubuntu because of school. I read many tutorials how to install ubuntu next to windows8, but despite that a problem accured. Here is what I have done. I have MSI GE60, windows(64bit) is running on mSATA SSD C drive. HDD is divided to two partitions for windows and I left there 50GB for ubuntu. I downloaded ubuntu 12.04.3desktop-amd64(64bit), created bootable USB using Universal USB Installer (recommended on Ubuntu site). I disabled USB legacy support (that Ubuntu could be installed in EFI mode- I was following instructions on Ubuntu site), and also Secure Boot (windows is now angry with me because I turned it off- when I start windows it informs me I should enable that). I inserted USB rebooted computer and chose install ubuntu, divided free 50GB space to swap(2000MB) and rest as ext4 main storage space for ubuntu. Installation passed normally, Ubuntu then asked me to reboot computer. After reboot windows 8 started. Now I can't start ubuntu. When I restart win8 to uefi there is possibility to boot ubuntu, but when I choose it, it crashes. When I choose try ubunfu from connected USB, nothing happend, still dark screed. What is wrong? Can you help me? I am in hurry to do it because of school. Thanks.

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• Windows 7 - all usb devices go to sleep im idle mode

  - by dvdx

  A strange thing happened after a few updates to the system: Intel rapid storage SSD firmware update Intel Ethernet adapter update GPU Intel update When the computer turns off the screen (after 5 min), an unknown time later, all the USB devices stop working. Sound card Mouse Keybord etc. I can't turn them back on, so I can't wake up the screen or do anything except turn the computer off and back on. I checked my power save profile and all is OK there. I changed in the Device Manager, the Allow USB to sleep in all the hubs. How can I fix this??

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• Windows 8 will only recognize the Blu Ray ROM, if the install disk is present at boot time [migrated]

  - by aceinthehole

  If I have the install disk in the blu ray ROM drive at boot time and subsequently remove the disk and replace it with blu ray media everything functions as I'd expect. However, if I have no media present, or another disk in the drive at boot time, then windows 8 does not seem to recognize that the blu ray player is even present in the computer. It is not present in the 'my computer' screen, device manager does not show the player, and scanning for new hardware yields nothing. It seems that the driver is installed and working as expect, what is it about having the windows 8 install disk in the drive or not that would cause this kind of behavior?

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• Problems with nvidia drivers

  - by Crs2489

  I have a problem that I haven't been able to find a solution to. I recently decided to switch from Windows to Ubuntu 11.10, so I originally installed Ubuntu using the wubi installer for windows. After I installed Ubuntu with wubi I installed drivers for nvidia using the additional drivers from system setting and everything worked fine. I then decided that I no longer wanted windows on my computer because i was having problems with it crashing when I went to remove the partition with windows on it using an Ubuntu Live CD I made I found that there were unrepairable problems with both of my partitions so I decided to delete both partitions and install Ubuntu again from the cd now when I try to install nvidia drivers my gui will not load when i start my computer. I have found people who have had similar problems with the gui not loading after installing nvidia drivers but no one who had there gui working after installing with wubi then not working after installing from a cd. I'm using Ubuntu 11.10 32 I have also tried other versions of linux like openSUSE and have had the same problem with the gui not being able to load after installing nvidia drivers.

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• Can't use a network CD-ROM

  - by user53814

  Hi, there! I have a computer with Windows XP and I'm trying to use my local network to use the CD-ROM of my notebook with Windows 7. In windows XP computer with VLC I can open the menu of the DVD but after choose the option for the first chapter the movie window shuts down (but the VLC stays open). With BS-Player when trying to start the first chapter it freezes... Is this possible to fix? Thanks in advance!

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• Received a RAMPAGE IV FORMULA MOBO. Possible CPU Socket problems

  - by Tantan

  I recently received a Rampage IV Formula MOBO in a trade. From everything I read online this seems like a pretty nice piece of hardware. There's one thing I'm worried about though. It appears as though the socket where the CPU goes might have some bent/missing pins. I'm not exactly a computer expert and I wanted to know if this could be any sort of problem. I would post a picture but I apparently don't have enough rep for that... Also, if I did want to move my current rig onto the new MOBO would it even be worth it? MY CURRENT COMPUTER SPECS i3-3220 CPU 8GB DDR3 RAM GeForce GTX460 GPU With a Biostar MOBO!

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• How can I make windows not mount a drive when it is plugged in?

  - by heavyd

  Due to my employer's IT policy, I'm not allowed to have any kind of MP3 playing software on my computer. I do however like to plug my iPod into my computer to keep the battery charged during working hours. Normally, I plug the iPod in, Windows mounts the drive, then I have to go in and eject the drive so I can run my iPod normally while still keeping it charged. Is there anyway I can keep Windows from mounting the drive (and this drive only, I still use my USB flash drive a lot) from auto-mounting? Update: Maybe this is more of an iPod issue, but specifically I would like for the iPod to not display the "Do not disconnect" message when plugged in.

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• Change Exchange Server Name Before Upgrade

  - by ffrugone

  I need to upgrade the Exchange Server from 2003 to 2010. I'm physically changing servers as well as software. I'm worried about redirecting the Outlook clients after the upgrade is going to be troublesome. So, I thought that before doing anything else, that I would change the name of the Exchange server on the client from 'server-name.domain.com' to 'mail.domain.com' and add an entry in dns that points 'mail.domain.com' to the same ip as 'server-name.domain.com'. However, even though I added 'mail.domain.com' to the dns, I cannot get the Exchange server to change to that on the client computers. I found out that the Outlook clients check the Global Catalog for the name of the Exchange server computer. My question is: can I change the Global Catalog address of the Exchange computer from 'server-name.domain.com' to 'mail.domain.com'? If so/not, is there a better way to do this? thanks.

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• Why are browsers so heavy?

  - by Kaivosukeltaja

  Back in 1998 I had a computer with 233MHz Pentium MMX CPU and a GFX card with no 3D acceleration. It was able to run games like Quake II at a decent FPS rate. My current computer has tons more performance and a mid-class GPU, yet struggles to reach 20 FPS when rendering a single model inside a skybox with WebGL. Even regular pages with lots of 2D CSS animations bring many modern computers to their metaphorical knees. As a web developer I understand there's a lot going on in a web page but not what makes it that heavy. Modern browsers compile JavaScript to CPU native machine code before running it and rendering into a canvas element shouldn't trigger DOM rebuilds so theoretically it should be a lot faster than it is. What am I missing here and is it possible to avoid or minimize whatever is making the browsers slow to build more efficient websites?

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• Is this too much to ask for a game programming and developing enthusiast? Am I doing this wrong?

  - by I_Question_Things_Deeply

  I have been a computer-fanatic for almost a decade now. I've always loved and wondered how computers work, even from the purest, lowest hardware level to the very smallest pixel on the screen, and all the software around that. That seems to be my problem though ... as I try to write code (I'm pretty fluent at C++) I always sit there enormous amounts of time in front of a text-editor wondering how every line, statement, datum, function, etc. will correspond to every Assembly and machine instruction performed to do absolutely everything necessary for the kernel to allocate memory to run my compiled program, and all of the other hardware being used as well. For example ... I would write cout << "Before memory changed" << endl; and run the debugger to get the Assembly for this, and then try and reverse disassemble the Assembly to machine code based on my ISA, and then research every .dll, library file, linked library, linking process, linker source code of the program, the make file, the kernel I'm using's steps of processing this compilation, the hardware's part aside from the processor (e.g. video card, sound card, chipset, cache latency, byte-sized registers, calling convention use, DDR3 RAM and disk drive, filesystem functioning and so many other things). Am I going about programming wrong? I mean I feel I should know everything that goes on underneath English syntax on a computer program. But the problem is that the more I research every little thing the less I actually accomplish at all. I can never finish anything because of this mentality, yet I feel compelled to know everything... what should I do?

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• I lost my CSS Codes of my important Website, Why?

  - by Hooshkar

  Very weird, i had opened notepad ++ and working on my CSS codes for my website, suddenly my little niece unplugged the computer, when i re-start the computer and opened again the same CSS codes file in notepad ++, so all i am seeing is "NULL NULL NULL NULL NULL NULL NULL" there is no codes, all lost. I opened the same CSS codes file in other editors and its all empty no codes.. is there a way to fix it, because it was my hard work. and what can be the cause? Thank you.

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• Can anyone recommend how to fix sore "sides" from overuse of computers? (some kind of RSI)

  - by MGOwen

  I have to use computers for 9+ hours per day (no suggestions about 'use your computer less!' please). I get various kinds of RSI: a little soreness in the hands and wrists, but that's not a big deal compared my main problem: Pain in the sides of my body, under my arms and down the sides of my torso. Driving worsens it. Exercise doesn't seem to help (maybe I need a special exercise). It could be posture related, but I haven't found a way to fix that. Has anyone else experienced this? I find lots of people complaining about more typical kinds of RSI, but not like mine. I am hoping someone with experience can recommend an exercise, treatment, or adjustment in how I use my computer.

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• Issues with new graphics card and drivers

  - by Ortund

  With my onboard graphics card (Intel HD 4000) I was able to use 1680x1050 screen resolution. Using the same screen and an Asus ENGTS250 graphics card with 296.10 drivers installed, I'm not able to use that resolution anymore. Also, I've been having other trouble with driver installations. Using 340.52 or 337.88, I can't boot into Windows 7. I see the Windows Welcome screen and then the screen goes black, loses signal and the computer locks up. I think the drivers issues and the resolution problems go hand-in-hand. I have a feeling I could use a newer driver than 296.10 which would give me access to use the 1680x1050 resolution I want to use, but I'm terrified that if I update or install another driver, that the computer will lock up again. Can anyone recommend a [better] driver for me to use?

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• always need administrator password...even my user and password is correct.. i cannot log in

  - by sulit09

  why the computer always need administrator password. when i change all the setting of my computer, all around ..... and when i log in my administrator password... still not working even it is correct....password....and user..... and this pc is connected to domain.. but i try to other pc . to login all also using windows administrator its open..... what is the problem itry run cmd as administrator need administrator password.....again.. , i try to open the properties of network need administrator passpowrd..again how to solve this problem my new pc is windows 7 .

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• Are you satisfied with your programming? [closed]

  - by Richart Bremer

  If you are a programmer, are you satisfied with it? I really love to code. I code all kinds of things. I used to play computer games but they are not that interesting compared to developing a new search algorithm or similar. But sometimes I look into the future and see myself being 80 years old, sitting in front of a computer and everything I will have written will be rewritten because the programming languages do not exist anymore. I look back on my life and think "that's it?". Everything I wrote in the past is virtual and ultimately gone. I tried other things but coding is the only thing that does it for me. And at the same time I think I am wasting my life. What about you? Disclaimer: I presume this is the best forum for this question. If you don't agree suggest better place to migrate the question. If you can't, don't close it. Thank you.

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• Left click and enter not working

  - by user1981338

  Sometimes when I turn on my homemade desktop computer (running 64-bit Windows 7), the left mouse click and enter key doesn't work. They work well in BIOS, as well as on the Windows 7 BCD and login screen. Usually, restarting the computer solves the problem. Why does this keep happening? I've tried: Using other USB ports Refreshing, repairing and reinstalling drivers Changing mouse settings Refreshing mouse profiles My keyboard is a Logitech G510, and my mouse is a Razer Lanchesis 5600. Both work without problems in Ubuntu 12.04 and Windows 8.1 Preview, and I've been using both on my 64-bit Windows 7 homemade desktop without problems for about a year and a half. I encountered the problems yesterday.

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• For very beginning startup: home server or EC2?

  - by StCee

  The micro instance of Amazon EC2 only has ram of 613MB, my laptop got 8GB. And I suppose likewise the processing power of my computer would be better than the micro instance. My question is, what are the considerations in deciding to host yourself or on Amazon EC2, especially for a really baby startup? For example, would network speed be a problem? My computer broadband network is 100Mbs up to 1Gbs. What would Amazon compare to this? My site at these moment would just host some images and perform some php requests. I would probably also use cloudflare but seems it increases the dns lookup time considerably... And of course the overall objective is to make the best user experience.

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• monitor internet bandwidth on LAN

  - by Dimal Chandrasiri

  I'm on a office network and there are around 12 PCs that are connected to a switch and then to a Prolink Router. Now the Internet connection is very slow and I'm the one who manage all the computers. I want to monitor bandwidth usage of each computer on the LAN. how can I achieve this using my computer. I cannot install any software on the client computers other than mine. I tried wireshark but, it only shows my network usage so there is no use with the data I get from it. Is there any specific software that I can use within my PC to get the bandwidth details of other computers. I'm on a windows 7 x64bit PC with admin privileges. Thank you.

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• Unexpected "waiting for localhost"?

  - by Tenaar

  So I ran into something that kind of worried me today. Lately my computer has been kind of slow and I'm dealing with that, but today when I opened Facebook in Google Chrome, I noticed a message in the bottom left corner while it was loading the site that said "Waiting for localhost". It was brief and I managed to notice it because my computer is slower than it used to & it caused Chrome to hang briefly, long enough for me to read it. As I'm quite confident in that Facebook isn't running on my localhost, I'm wondering what could potentially make Chrome wait for localhost while I'm loading webpages from external servers. Is there a malware of some kind that I should be worrying about? Unfortunately I have no other information than this to go on, and I have no idea how to further investigate this, if it generated any logs or whatever. I'd appreciate any help in figuring out this matter!

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• VPN on PC vs Mac

  - by allstar

  I am trying to connect to a VPN from my home computer, as opposed to my work computer which already has the network info set up. I have received instructions on connecting from a mac, but since I don't have that I'm trying to do the equivalent on my PC. I know the: server group name secret and my own login account and password Using the Windows 7 VPN, there's space for: Internet address destination name user name password domain (optional) I'm trying to determine what's what. I assume the internet address is the server. I've tried using the "secret" as the Password, b/c i'd think the first part is connecting to the VPN as opposed to logging in. It still wants a user name though. I tried mine, I tried the "group name". I would appreciate your help with this. Thanks!

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• How can I automatically switch audio to my speakers when my TV-as-2nd-monitor is not in use?

  - by Michael McGowan

  I have a normal LCD monitor as my primary monitor and an HD LCD television as a 2nd monitor (connected through HDMI). I also have a set of normal speakers for the computer (a Windows 7 machine) that I previously used (before I was using the TV as a 2nd monitor). When I am using the TV as a 2nd monitor, I would like audio to come from it. However, I'm oftentimes using the TV as a TV, in which case I would like the audio from my computer to come from my speakers. Is there any way to accomplish this? It seems that if I have the TV set up as the default audio, then even if I turn the TV off (or, more likely, to the input from my cable box), then the audio still goes through that rather than my speakers. Is there a solution that does not require me to manually change the settings every time I want to switch contexts?

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