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• How to measure disk performance?

  - by Jakub Šturc

  I am going to "fix" a friend's computer this weekend. By the symptoms he describes it looks like he has a disk performance problem with his 5400 rpm disk. I want to be sure that disk is the problem so I want to "scientificaly" measure the performance. Which tools do you recommend me for this job? Is there any standard set of numbers I can compare the result of measurement with?

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• Image thumbnails flashes and then disappears in Windows Vista

  - by Hemant

  I have Windows Vista installed on my machine and I am facing this really annoying problem. Whenever I open a folder having images, image thumbnails appear for an instant and they are replaced by standard file icon. Argh... Points to note: Setting "Always show icon, never thumbnail" is unchecked Running Windows Aero theme (with transparency support) Have 4GB of RAM on my machine so memory is not a problem Please can you suggest a solution?

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• Why Office 2007 override Windows regional date setting?

  - by Istari

  I have a problem with a specific user's computer running windows XP SP2 and Office 2007. Although she has the regional date setting in windows to dd/mm/yyyy, her office applications are still reverting to mm/dd/yyyy which is driving her (and me) nuts. None of our other machines is doing this. Does anyone have a clue as to what to be looking for as the source of this irritating problem?

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• Backing up my data causes my server to crash using Symantec Backup Exec 12, or How I Came to Loathe

  - by Kyle Noland

  I have a Dell PowerEdge 2850 running Windows Server 2003. It is the primary file server for one of my clients. I have another server also running Windows Server 2003 that acts as the core media server for Symantec Backup Exec 12. I recently upgraded from Backup Exec 11d to 12. This upgrade was necessary because we also just upgraded from Exchange 2003 to Exchange 2007. After the upgrade I had to push-install the new version 12 Backup Exec Remote Agents to each of the servers I am backing up (about 6 total). 5 of my servers are doing just fine, faithfully completing backups every night. My file server routinely crashes. Observations: When the server crashes, it does not blue screen, it just locks up completely. Even the mouse is unresponsive. If you leave the server locked up long enough, it will eventually reboot itself and hang on the Windows splash screen. There is absolutely zero useful Event Viewer evidence of a problem. The logs go from routine logging to an Unexplained Shutdown Event the next morning when I have to hard reset the server to get it to boot. 90% of the time the server does not boot cleanly, it hangs on the Windows splash screen. I don't have any light to shed here. When the server hangs all I can do is hard reset it and try again. Even after a successful boot and chkdsk /r operation, if you reboot the machine, you have a 90% chance it won't back up again cleanly. The back story: This server started crashing during nightly backups about a month ago. I tried everything I could think of to troubleshoot the problem and eventually had to give up because I could not keep coming to the office at 4 AM to try to get the server back online. One Friday I got lucky and the server stayed up for its entire full backup. I took this opportunity to restore the full backup to a temporary server I set up and switched all my users to the temporary. Then I reloaded the ailing file server. I kept all my users on the temporary file server for about 3 weeks. I installed the same Backup Exec Remote Agent and Trend Micro A/V client on the temporary server that I was using on the regular file server. During this time, I had absolutely no problems backing up the temporary server. I tested the reloaded file server extensively. I rebooted the server once an hour every day for 3 weeks trying to make it fail. It never did. I felt confident that the reload was the answer to my problems. I moved all of the data from the temporary server back to the regular server. I got 3 nightly backups out of it before it locked up again and started the familiar failure to boot cleanly behavior. This weekend I decided to monitor the file server through the entire backup job. I RDPd into the file server and also into the server running Backup Exec. On the file server I opened the Task Manager so I could view the processes and watch CPU and memory usage. Everything was running smoothly for about 60GB worth of backup. Then I noticed that the byte count of the backup job in Backup Exec had stopped progressing. I looked back over at my RDP session into the file server, and I was getting real time updates about CPU and memory usage still - both nearly 0%, which is unusual. Backups usually hover around 40% usage for the duration of the backup job. Let me reiterate this point: The screen was refreshing and I was getting real time Task Manager updates - until I clicked on the Start menu. The screen went black and the server locked up. In truth, I think the server had already locked up, the video card just hadn't figured it out yet. I went back into my bag of trick: driving to the office and hard reseting the server over and over again when it hangs up at the Windows splash screen. I did this for 2 hours without getting a successful boot. I started panicking because I did not have a decent backup to use to get everything back onto the working temporary file server. Once I exhausted everything I knew to do, I took a deep breath, booted to the Windows Server 2003 CD and performed a repair installation of Windows. The server came back up fine, with all of my data intact. I can now reboot the server at will and it will come back up cleanly. The problem is that I'm afraid as soon as I try to back that data up again I will back at square one. So let me sum things up: Here is what I've done so far to troubleshoot this server: Deleted and recreated the RAID 5 sets. Initialized the drives. Reloaded the server with a fresh Server 2003 install. Confirmed with Dell that I have installed the latest, Dell approved BIOS and NIC drivers. Uninstalled / reinstalled the Backup Exec Remote Agent. Uninstalled the Trend Micro A/V client. Configured the server not to reboot itself after a blue screen so I can see any stop error. I used to think the server was blue screening, but since I enabled this setting I now know that the server just completely locks up. Run chkdsk /r from the Windows Recovery Console. Several errors were found and corrected, but did not help my problem. Help confirm or deny the following assumptions: There are two problems at work here. Why the server is locking up in the first place, and why the server won't boot cleanly after a lockup. This is ultimately a software problem. The server works fine and can be rebooted cleanly all day long - until the first lockup - following a fresh OS load or even a Repair installation. This is not a problem with Backup Exec in general. All of my other servers back up just fine. For the record, all of the other servers run Server 2003, and some of them house more data than the file server in question here. Any help is appreciated. The irony is almost too much to bear. Backing up my data is what is jeopardizing it.

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• Install OpenBSD from a USB flashdrive : "No OS" message on boot

  - by Opera

  Hello everyone, I'm attempting to install OpenBSD on a fancy new home server equipment I just bought and here is my problem. I followed this guide to create a bootable USB flash drive from an OpenBSD VM I have on my laptop but when I try to boot my laptop on it all I get is a "No OS" message (I tried two different USB keys). Does anyone know that problem (and its solution) ?

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• There is anything to consider in change IIS Pool Identity to Network Service instead ApplicationPoolIdentity?

  - by Vinicius Ottoni

  I'm facing a problem with IIS Pool Identity. I need to give right permissions to it user, but i cannot find the user that is setted to the IIS Pool Identity, that is ApplicationPoolIdentity. I find the user NetworkService that is a possible user to IIS Pool Identity. There is any problem or anything that i have to consider after change the IIS Pool Identity to NetworkService? OBS: I'm using Windows 7 (IIS 7.5)

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• USB pen drive random disconnects

  - by Kristian Damian

  When i connect a USB pen drive in my computer random disconnects. Already uncheck the power manager option in the device manager. I have the same problem in XP & Windows 7. I tried with ubuntu in the same machine without having any problem.

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• Router has traffic coming in, but it's not going anywhere. What can I do?

  - by dubRun

  Ok so I have a Linksys WRT-54G v4 running the latest version of DD-WRT (just downloaded it last week to try to fix the problem) There is consistently about 750kbs coming into the router but from what I can tell, it's not going anywhere inside the LAN or WLAN. I'm also having alot of network dropouts while I'm listening to music or watching video over the network. The traffic is coming in even if there are no computers on the network (turned them all off) What can I do to fix this problem? Here is a screenshot:

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• Ubuntu 9.1 - Audio coming from both speakers and headphones

  - by David

  I have an HP Compaq nc8230 that has an annoying little problem with it's audio devices in Ubuntu 9.1. When I have the headphones plugged in, the audio continues to play simultaneously through the speakers no matter what. I'm not sure what kind of sound card this computer has, but in WIndows XP, Vista, 7 and OSx86 I didn't have this problem. I've tried using 3 different headphones and it didn't change anything. Please help.

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• Issues getting a Cisco WLC 5508 to find AIR-LAP1142N

  - by user95917

  hoping someone can help me with a problem here. I'm attempting to setup a test (loan from Cisco) wireless network. Here's what i've got/done: 5508 Controller - Service Port IP set to 10.74.5.2 /24. Management IP set to 10.74.6.2 /24 with a default gateway of 10.74.6.1. Virtual IP set to 1.1.1.1. Copper SFP in slot 7, CAT5 (known good) going from there to port 1/0/47 on the switch. Green lights on both ends. 2960-S Switch - Vlan1 - 10.74.6.1 /24. dhcp pool 10.74.6.0 /24, default router 10.74.6.1. excluded-address 10.74.6.1, 10.74.6.2. 1/0/4 on the switch is set to switchport mode access and no shut. 1/0/47 on the switch is setup to switchport mode trunk and no shut. 1/0/4 has a CAT5 (known good) cable going from there to the AP. When I do a sh cdp nei from the switch, i can see the AP and Controller listed. When i configure my PC's nic to 10.74.5.5, and plug a cable from my nic to the SP port on the controller i can get on the device via the gui. In there, the only errors/info that show up in the trap are: Link Up: Slot: 0 Port: 7 Controller time base status - Controller is out of sync with the central timebase. I've manually set the time but apparently that's not quite the problem (or at least not the entire problem). When i plug the AP in, i see on the switch console that it grants it power, it sees it connect...but the controller won't see it for some reason. From what i've read you shouldn't have to do anything to the AP as it's managed by the controller...but i'm not sure what setting I'm missing for it to work. The AP light on top is continually cycling green, red, yellow. When I first start it up, it blinks green for 20 or so seconds, then goes to solid green for another 20 seconds or so, then flashes blue, green, red for awhile...but always ends up goinn back to the standard, green, red, yellow. Does anyone see any obvious issues with my setup or have any suggestions as to why i might be having a problem? Thanks for your help!

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• Windows 7 remains powered on when restarting

  - by BombDefused

  I'm running windows 7 x64 on an MSI P67A-GD53 motherboard, in an Antec P280 Super Midi Towercase with a Corsair 650w PSU. I've just installed a second instance of windows 7 x64 on a separate disk (this is to keep my games separate from my work OS). The problem is that it appears now that I cannot restart from either instance of Windows 7. The shut down command, and sleep commands work as expected. When I try to restart, the shutdown happens but the system never reboots. Everything remains powered on, until I hold down the power button to force the power off. Ithink (but am not 100% sure) this has only started since I installed the second OS, and am assuming this has something to do with the motherboard needing to know which OS to run up again? Some other forums I've read suggest that the PSU has a major role in restart and could be at fault. Changing the boot order of the disks in the BIOS does not change anything. Any suggestions greatfully recieved! Update: I now have a reproduceable issue: I think the secondary OS install may have been a red herring. It was when windows tried to reboot during the install that I noticed the issue. After playing around with installing drivers, and rebooting many many times, I have found that it is the OC genie setting on the MSI motherboard that seems to trigger the problem. This makes sense as I only started using the OC genie feature a couple of weeks ago, and probably hadn't used restart in that time. However... simply turning off OC genie does not make the issue go away. I have to turn off OC genie, shutdown, start enter bios, go to the "Save and Exit" menu "Restore Defaults" yes to "Load optimized defaults", which will reset to clear the problem. Now when the PC boots into windows, I can restart as normal (and from the OS on either HDD). I only know how to control the issue, and don't still know the root cause. I'd like to be able to use the OC genie function if anyone can suggest a why I'm seeing this problem. Could it be that I'm drawing too much power when using OC feature?

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• Safari can’t establish a secure connection to the server

  - by gdelfino

  I realize there is another question with the same title, but my situation is very different. The problem started on three of my computers after upgrading from Leopard to Snow Leopard. I can login to gmail and facebook using https with no problem. I can not login to https://identi.ca/main/login or https://seminars.wolfram.com/ or https://panopticlick.eff.org with Safari, works fine with Firefox. Already tried "Safari Reset..." Any ideas?

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• Does anyone own a compaq 610? Fan Issues.

  - by Dave

  Hi, I've just purchased 2 HP compaq 610s and both have the same problem, that the fan is constantly on and the base is fairly hot. HP assures me that this is unusual and that I should return them as DOA. Becasue both laptops have this issue, I think that it may be a design flaw rather than a one off problem. Can any 610 owners comment? Is their fan constantly on too?

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• How can I stop wmplayer.exe causing CPU Usage spikes?

  - by SwanWhisperer

  I've found that on a very fast new machine CPU usage runs between 0-8% normally, but then with wmplayer on it hovers between 8-18%. The problem is particularly to my new machine with Windows 7, and doesn't occur on my old Vista machine. I believe it's possibly because every time I open wmplayer it tries to load up every media file on my computer into the startup screen. Assuming I want to keep using wmplayer (and since I've got a lot of playlists set up there, I do), how can I fix this problem?

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• iPhone 3G refuses to transfer purchased apps to iTunes

  - by andynormancx

  My iPhone 3G refuses to transfer purchased apps to iTunes. This is causing me major problems with syncing. Whenever I attempt to transfer apps from the iPhone to iTunes it goes through the motions, but never actually transfers anything. It displays the various apps in the info area at the top of the screen, but the progress bar never advances. In comparison when I sync other iPhones, using the same install of iTunes, the progress bar advances and apps are transferred. The same also happens on clean installs of iTunes on other computers, it seems to be my iPhone that is the common factor. I have tried restoring the phone from a backup, which makes no difference. This started happening months ago and the phone has since been upgraded to 3.0 and 3.1, but the problem still persists. Originally it was just a minor irritation, but I made and attempt to fix it which has made things worse. I deleted all the apps from with iTunes and then did "Transfer purchases" in the hope that it might fix something. It didn't fix anything. Also, I cannot now sync at all. If I do sync iTunes now does "transferring purchases", fails to transfer and then deletes all the apps (and data) from my iPhone. It also means I can't sync music, podcasts or anything else. I can't sync anything else, because I can't temporarily turn off app syncing because then iTunes warns that the apps on the iPhone will be deleted. I also tried de-authorising and re-authorising. What can I do to get app syncing working again ? P.S. I have considered deleting all the apps and reinstalling them one by one, in the hope that it will fix the problem. However I don't really want to embark on doing that for 55+ apps and re-entering login details etc for the apps that need them, especially as I might then find out it didn't solve the problem. Update: The latest update to iTunes 9 has improved things in one key aspect. If I let a sync run to completion iTunes no longer deletes all the apps from my phone. So I can now sync all my other data, even if I still can't sync my apps. Resolved: See my answer to the question for how I finally resolved the problem.

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• This application has failed to start because the application configuration is incorrect

  - by Arman

  I have created an application in c++ using VS .Net. There is only the windows.h dependency in my application, all other header files are standard. But the problem is when I make the release of my application and run on other system it show the error dialog box, "This application has failed to start because the application configuration is incorrect". Kindly help me to sort out this problem.

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• Socket error sendig data from loftware to zebra zm400

  - by Mike

  I have a problem with my Zebra zm 400. I print a label from loftware, and in random times comes the label not out from the printer. When this issue comes, then I can't ping my printer or I can't achive the webpage of the printer. Only I need to disconnect the UTP cable from te Zebra. and after this disconnect work the printer fine. And in variale intervals come this problem again! Thanks and regards, Mike

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• CentOS 5.7 keeps rebooting after fresh installation

  - by Wagner Maestrelli

  I have just installed CentOS 5.7 x86_64 on a new computer. The installation went on without any issues. But, after it finnished, the machine started to show an awkward behaviour: it restarts every time it tries to boot. It happens after all the services have been started. The screen just goes black and it shows an error message from the monitor: Input not supported. And then it reboots. I took a look at the logs, but I couldn't manage to find anything. Any help? Update Before doing the hardware diagnosis, as pointed out, I decided to make some tests. First, I changed the runlevel to 3, adding the 3 parameter at the end of the kernel command. Then, after logging in in text mode, I checked the xorg.conf file out for some problems regarding the screen resolution. There was nothing unexpected set. Well, if there had to be a problem with it, I couldn't start the X server at the command line, right? So, I typed startx and Gnome started! So, probably, it's not an issue with the screen resolution, I suppose. Then I selected the Log Out root... Gnome menu option and something odd happened: the screen went black, the Input not supported monitor error message was displayed and the system rebooted. Yes, the same problem I was having while trying to boot! After that, I decided to try yet another test: I removed the rhgb quiet parameters from the kernel command to see if some error would show up. Well, to my surprise, the boot went on without problems! The Gnome login screen showed up, I logged in and the session started. But then I selected the Shut Down... menu option and guess what? Same problem: black screen, same monitor error and the system rebooted. Yes, it rebooted, it did not shut down. I repeated both of the tests and the behaviours were the same. I really don't know what's going on. It seems to be an issue regarding the changing of the screen mode or something like that. Any ideas? Could this be a hardware problem? Or does it seem to be something regarding the system configuration?

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• Why Basic HTML gets loaded

  - by Priyanka

  Hello... When I browse internet,basic HTML gets loaded on my computer. For eg.- for orkut or facebook login,only the text box appears,and when inputs are provided,and redirection is done,it says "error on page". Even on google search,basic HTML gets loaded on my computer.. I tried installing new Internet version i.e., IE8,but had the same problem. Kildly provide a good solution to this problem.

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• Why Basic HTML gets loaded

  - by Priyanka

  Hello... When I browse internet,basic HTML gets loaded on my computer. For eg.- for orkut or facebook login,only the text box appears,and when inputs are provided,and redirection is done,it says "error on page". Even on google search,basic HTML gets loaded on my computer.. I tried installing new Internet version i.e., IE8,but the same problem. Kildly provide a good solution to this problem.

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• PHP: gethostbyname() suddenly no longer resolves names to IPs when run in Apache

  - by hurikhan77

  One of our older legacy servers which gets no further updates or reconfigurations suddenly stopped resolving hostnames to IPs when PHP is executed within Apache. However, it still works fine when executed from the CLI. From the RSS caches last modification time, I deduce that it stopped working on around Mar, 28th. To reproduce the problem, I created a script using fsockopen() and it said "connection failed (errno 2)". I further reduced the problem to being related with a failed name resolution: <?php $addr = gethostbyname("twitter.com"); echo "ADDR($addr)"; ?> When I run this through Apache, the output is ADDR(twitter.com), which is wrong. When I run this from the CLI, the output is ADDR(aaa.bbb.ccc.ddd) with varying IP addresses, as expected. Nothing on the server setup has changed. CLI and Apache module share the same php.ini. PHP is version v4.4.9 with Zend Optimizer v2.5.10. Apache is v1.3.31. I know the versions are old. But since nothing has been changed, a solution like "try to upgrade versions first" is no solution as the server's feature set/versioning is frozen and will be replaced soon. Still we need a solution. If I run dig through the script, it works in both environments (mod_php and CLI) but this is more than an ugly hack as it would involve many edits and testing throughout the whole script base which is also undesired as the PHP application on the server is frozen, too, and only receives security updates. It will be replaced by a complete rewrite (on the new server). But as the rewrite will take some time and successive replace parts of the legacy application, we need a fix for the resolver problem. I already googled a bit and while the problem is known, many did not find a fix. The fix to raise memory limits did not work. Restarts did not work. The resolver in mod_php just did stop working for no apparent reason. :-(

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• netcat/socat no response from other networking services

  - by jack

  Hi gurus First, I thought that this was Vmware problem : http://serverfault.com/questions/141838/vmware-problems-networking-no-packet-response But now, after testing on several physical machines, I realized certain services didn't return response data when using socat/netcat 1.1 which is supposed to the latest version since last updated. root@test3:~# netcat 192.168.1.2 25 220 762462a8c4d Microsoft ESMTP MAIL Service, Version: 6.0.2600.5949 ready at Fri, 12 May 2010 18:04:20 +0800 EHLO SAYHELLO VRFY TEST@LOCALHOST EHLO localhost sdfsafsd ^ root@test3:~# I've tested it on both windows and linuxes. I found no problem with telnet.

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• Major computer speed problems

  - by Glen654

  I've been running Windows 7 on my laptop for about a year now, and have had no issues regarding speed. About a month ago, my computer had what I refer to now as an "episode" where it runs extremely slow, when I open Task Manager I see no significant processes running, nothing out of the ordinary, but my computer is at 100% CPU usage. Usually restarting fixed this problem, but it seems to have gotten worse to the point where restarting does not fix this problem, and it's interfering with my work. What should I do?

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• php info not effect when edit value in php.ini on nginx webserver

  - by khoanhd

  I've already installed php, fcgi, nginx, the system running as no problem, but the problem happen when: I update memory_limit in php.ini, then restart php-cgi, nginx, but when use phpinfo, theo memory_limit is not effected. I install 2 new extensions: curl and memcache, add 2 lines: extension=curl.so and extension=memcache.so, restart php-cgi and nginx, phpinfo also not show up the value curl and memcache in phpinfo. So, how should i do?Please help me.

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• "Bug code usb driver" blue screen in windows

  - by trinity

  Hi all, I have dual OS ( Fedora and windows xp ). for the past two months when i use windows xp, i'm frequently getting a blue screen with msg : " bug code usb driver ".Not knowing what to do next , i switch off the system and reboot it. Can anyone help me understand why this is happening , and how to troubleshoot this problem.. Here's the info provided about this problem after system restarts : BCCode : fe BCP1 : 00000004 BCP2 : 88F3BA08 BCP3 : 88E9FB10 BCP4 : 00000000 OSVer : 5_1_2600 SP : 2_0 Product : 256_1

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