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• How should I troubleshoot a problematic wireless connection on Linux?

  - by Gearoid Murphy

  I recently purchased a netgear 150 usb wireless dongle for use with my 11.10 Xubuntu amd64 system. Using the network-manager interface, I can see local wireless networks and enter the authentication details for my local wireless lan. Unfortunately, the connection does not seem to work, I keep getting notifications that my wireless has disconnected (but none indicating that I've connected). When I examine syslog, it seems to indicate that I've successfully associated with the wireless switch and that dhcp has successfully acquired an ip address but the log shows that the dhcp process keeps sending requests, eventually dropping the connection. 'ifconfig wlan0' never shows the dhcp address logged in syslog. I suspect that the problem lies with the usb dongle, my configuration or the wireless switch but I am not certain how to isolate the problem, can anyone provide some insight on how I should go about homing in on the cause of this problem or verifying the functionality of the individual components, thanks.

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• Swiftfox(A variant of Firefox i.e getswiftfox.com ) is taking ages to load in Debian Lenny.

  - by unixbhaskar

  As I mentioned the problem in the Title line..so no stating here once more.I have been using swiftfox for all other partition os without any problem i.e it works flawlessly on Arch,Fedora,Gentoo( my other OSes) ..but giving trouble in Debian Lenny.... Not yet find any clue. Please throw some light on it.The point is that I have had periodically prune swiftfox/firefox internal database; as well as upgrade and update empirically . I am bemused with this problem in Debian Lenny. Cheers! Bhaskar

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• Debian: video problems with VLC

  - by kemp

  I have a problem playing AVI divx files with VLC. Yesterday upon start VLC showed an error message complaining about divx codecs and refused to proceed. Today the player starts but the video is squashed horizontally (it occupies roughly 1/4th of the VLC window which is for the other part black). I'm on an updated testing system, and before yesterday VLC was playing fine. In the meantime - after a recent dist-upgrade - I cannot run X with proprietary ATI drivers anymore, I have to use the FOSS radeonhd ones instead. I don't know if that's related but I thought it could be worth mentioning (and by the way if anyone has suggestions about this problem too, that'd be very much appreciated). How can I fix VLC's problem?

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• How do you change the "scan this dir for additional ini files" path?

  - by amvx

  I managed to get the custom INI to load, but its still loading other .ini files from the default location. I created an fcgi wrapper that passed the ini value as a parameter. That worked. Now just these other ini's need to be loaded from the same dir as my custom ini. The problem is the other .ini files are overriding the settings in my custom php.ini =/ I realize the problem now is that the php.fcgi was compiled with a custom path parameter. So that's a problem. I might have to recompile it using a different location or none at all. I'd hate to have to compile an fcgi for each domain =/

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• Outlook items suddenly disapears from inbox after synchronization

  - by Jan Šotola

  We had some disk problems on Exchange server. We had to fix the Exchange 2007 using eseutil. Everything works fine excpet of following problem with one e-mail account: All inbox messages of mentioned e-mail account are fully accessible through the OWA. When any user creates new Outlook profile (using .OST mode) and starts synchronizing, all inbox messages are visible in the Outlook's inbox folder untill the Inbox synchronizing is completed. Once the synchronizing progress bar reaches 100% (and the Outlook starts synchronizing Sent items or another folder), most of messages disappears from the inbox view of the Outlook. The .OST file size does not reduce. New mails (delivered after Exchange server crash) remains all in the inbox. There is no special view or filter applied in the Outlook. The problem has been reproduced on two different computers (Vista+Office2007, Win7+Office2010). We assume there is some problem on the Exchange server but we don't know how to fix it. Can anybody give us some advice?

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• Localized database for customers

  - by Jim

  The company I work for, has just moved to AWS - and currently they have one very large central database with the instance currently located in America. However, one of their clients has requested that all of their data is held in the EU. So creating an AWS instance in Ireland isn't a problem, the problem is the database and how to manage it. We were considering having another database that runs in the EU for European customers, and use a different primary key step, so that the primary keys will never conflict in case the two locations need to be merged in the future. The problem is, if we have a customer that uses our system in both America, and the EU we would have to create 2 accounts for that user, and reporting across both regions would not be possible as the connection time would be too high. Is there an alternative to set this up?

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• Router loses connection to internet randomly

  - by tvanover

  I have a Belkin wireless G plus Mimo router and it randomly loses the connection to the internet. It seems to happen for a second or two, not enough to impact day to day browsing. But enough to disconnect games, or stall videos I am watching. It happens whether I am plugged into the router or connecting via wifi. I am unsure if it is my router or Comcast that is causing this issue. If I connect a computer directly to the modem the problem never occurs, so that tells me it is probably the router. But I also had a Netgear wireless router WGR614, and it had the same problem. I don't know where to start looking for the source of the problem. What logs should I be combing through? All my machines are win 7 of varying versions.

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• How to diagnose RAM?

  - by x-man

  I have a java process that is aborted after a while with SIGSEGV. It started to happen after I upgraded the server with more RAM. Having tested on different JVMs I suspect it might be a hardware problem. But no problem was detected by memtest86. So, what else can I do to detect the source of the problem is? Should I take the RAM modules one by one to detect the faulty module? The server is running on 64bit OpenSuse11.3. The memory is not an ECC one it seems. I have a kit of this (3*4GB * 2 = 24GB): http://www.kingston.com/datasheets/KHX1600C9S3K2_8GX.pdf

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• Why are my USB 2.0 devices crashing Windows XP?

  - by BenAlabaster

  Background on the machine I'm having a problem with: The machine was inherited and appears to be circa 2003 (there's a date stamp on the power supply which leads me to this conclusion). I've got it set up as a Skype terminal for my 2 year old to keep in touch with her grandparents and other members of the family - which everyone loves. It has a generic ATX motherboard with no identifying markings other than one stamp that says "Rev.B". CPU-Z identifies the motherboard model as VT8601 but doesn't provide me with any manufacturer name. On board it has 1 x 10/100 LAN, 2 x USB 1.0, VGA, PS/2 for KB and mouse, parallel port, 2 x serial ports, 2 x IDE, 1 x floppy, 2 x SDRAM slots, 1 x CPU housing that is seating a 1.3GHz Intel Celeron CPU, 3 x PCI, 1 x AGP - although you can only use 2 of the PCI slots if you use the AGP slot due to the physical layout of the board. It's got 768Mb PC133 SDRAM - 1 x 512Mb & 1 x 256Mb installed as well as a D-LINK WDA-2320 54G Wi-Fi network card and a generic USB 2.0 expansion board containing 3 x external + 1 x internal USB connectors. It has a DVD+/-RW running as master on IDE1 and a 1.44Mb 3.5" floppy drive connected to the floppy connector. It has an 80Gb Western Digital hard drive running as master on IDE0. All this is sitting in a slimline case. I don't know the wattage of the PSU, but can post this later if this proves to be helpful. The motherboard is running a version of Award BIOS for which I don't have the version number to hand but can again post this later if it would be helpful. The hard disk is freshly formatted and built with Windows XP Professional/Service Pack 3 and is up to date with all current patches. In addition to Windows XP, the only other software it's running is Skype 4.1 (4.2 hangs the whole machine as soon as it starts up, requiring a hard boot to recover). It's got a Daytek MV150 15" touch screen hooked up to the on board VGA and COM1 sockets with the most current drivers from the Daytek website and the most current version of ELO-Touchsystems drivers for the touch component. The webcam is a Logitech Webcam C200 with the latest drivers from the Logitech website. The problem: If I hook any devices to the USB 2.0 sockets, it hangs the whole machine and I have to hard boot it to get it back up. If I have any devices attached to the USB 2.0 sockets when I boot up, it hangs before Windows gets to the login prompt and I have to hard boot it to recover. Workarounds found: I can plug the same devices into the on board USB 1.0 sockets and everything works fine, albeit at reduced performance. I've tried 3 different kinds of USB thumb drives, 3 different makes/models of webcams and my iPhone all with the same effect. They're recognized and don't hang the machine when I hook them to the USB 1.0 but if I hook them to the USB 2.0 ports, the machine hangs within a couple of seconds of recognizing the devices were connected. Attempted solutions: I've seen suggestions that this could be a power problem - that the PSU just doesn't have the wattage to drive these ports. While I'm doubtful this is the problem [after all the motherboard has the same standard connector regardless of the PSU wattage], I tried disabling all the on board devices that I'm not using - on board LAN, the second COM port, the AGP connector etc. through the BIOS in what I'm sure is a futile attempt to reduce the power consumption... I also modified the ACPI and power management settings. It didn't have any noticeable affect, although it didn't do any harm either. Could the wattage of the PSU really cause this problem? If it can, is there anything I need to be aware of when replacing it or do I just need to make sure it's got a higher wattage than the current one? My interpretation was that the wattage only affected the number of drives you could hook up to the power connectors, is that right? I've installed the USB card in another machine and it works without issue, so it's not a problem with the USB card itself, and Windows says the card is installed and working correctly... right up until I connect a device to it. The only thing I haven't done which I only just thought of while writing this essay is trying the USB 2.0 card in a different PCI slot, or re-ordering the wi-fi and USB cards in the slots... although I'm not sure if this will make any difference - does anyone have any experience that would suggest this might work? Other thoughts/questions: Perhaps this is an incompatibility between the USB 2.0 card and the BIOS, would re-flashing the BIOS with a newer version help? Do I need to be able to identify the manufacturer of the motherboard in order to be able to find a BIOS edition specific for this motherboard or will any version of Award BIOS function in its place? Question: Does anyone have any ideas that could help me get my USB 2.0 devices hooked up to this machine?

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• Facing gestures in Linux mint Chrome Browser

  - by aravind.udayashankara

  I am using Linux mint OS since an Year , I use to consistently download updates and install , I use chrome as a default browser , when ever I open youtube and watch some video , I listen to some gestures in sound ( say repeated lyrics of song ) while it is playing , In firefox it is working fine . What is the problem am I missing any plugin , AFAIK Chrome doesn't need a flash player plug in , It has a built in flash player . IS that the problem ? And also previously I was not facing this , recently I started using Cinimon UI centOS after this all these kind of problems started MY hard ware is 64 bit intel core i3 and also I have installed linux mint 64 bit Please let me know what is the problem and how to fix this . Thanks in advance for responding to this post

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• Logitech bluetooth audio receiver quality

  - by lietus

  I bought a Logitech Bluetooth Audio receiver, and have run into a problem: When playing audio, it contains short hisses/clicks on higher tones or vocal+heavy instrumental music (Sound quality appears to be unclean). I'm not sure what could be the reason, but this only happens when I play from certain devices. My laptops (a Dell XPS Win7, and an Asus Eee seashell Win7) and my phone (Samsung Player 5) both have the problem. However, when I tried using a Samsung S2 phone, the audio was crystal clear. Seems that this could be something with Bluetooth transiting device.. Has anyone encountered a similar problem?

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• Unable to connect with PPTP (From Windows 8 to Ubuntu 12.10)

  - by jaja

  I'm trying to connect using PPTP to my VPS. At first, I got the problem that my connection (Wlan, which is what I use to connect to the Internet) goes "limited" (I can't connect to the Internet) when I connect to the VPN. Then, I used to get some long message, something like you might be trying using L2TP. Then now it's back again to the "limited" problem. What's the solution to that problem? One thing I'm not sure of is what I put as my local IP address in "sudo nano /etc/pptpd.conf" Is it 127.0.0.1? I'm following this tutorial: http://thesinclairs.gotdns.com/blog/set-up-a-pptp-vpn-on-ubuntu-server/

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• Configure Raid On Red Hat 5

  - by Sopolin

  Hi all, I have a problem with configure raid on red hat enterprise linux. The problem is when I create raid on two hard disks. It works successfully but after I remove one hard disk. It works normally. It means that I plug in one hard disk for testing configure raid. But after that I put both hard disks and create other file. The raid is cleared. My question is: Why do I turn off server machine, it clears raid that I configure first time before I turn off? Could anyone help to solve this problem? Thank, Ung Sopolin

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• Green bar on top of every (web) video, distorted colors too

  - by Walter Maier-Murdnelch

  Hey since a few days I have a problem with some videos I watch on the web (youtube, vimeo etc). There is a green bar on the top of the video and the colors are distorted, it looks like they are somehow shifted. I am not sure since when this problem appeared, I guess it might have been an update for the flash player. Anyways, I found a workaround. Disabling the hardware acceleration helps. right click on video - settings - disable hardware acceleration. After reloading of the page the green bar is gone. The problem is taht this setting doesn't seem to be persistent and so I have to disable it again on every other video. How can I make this setting permanent or how to get rid of the green bar alltogether? (I will add a screenshot later)

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• Best technique for reusing a Windows system image across configurations

  - by Martin Wiboe

  We are a small company that provides solutions for ventilation systems. Part of the solution is a "controller" which communicates with the ventilation equipment. These controllers are simply Dell computers that come with our Windows 7 system image on them and sometimes some special hardware. We typically do a batch of 10 controllers at a time. We have been using Norton Ghost to apply the system image, but this process breaks because Dell changes the system configuration often, and our Windows image now does not contain the correct drivers. This is especially a problem when they change the RAID controller. To improve this, I see 2 options: use some kind of virtualization and install a hypervisor on each PC. This would solve the driver problem, but probably cause trouble with our special hardware. use some method of adding the proper drivers to our Windows image in offline mode. I haven't got much experience in either of these approaches. How would you solve our problem?

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• Blocked port 25 on Windows 7 64 bit

  - by Michal Gow

  Strange problem. I have 2 computers connected to Wifi router. One with Windows Vista & second with 2 operating systems: SUSe Linux and Windows 7 64bit on it. Computer with Vista can connect to SMTP server of my email provider (and any other) using port 25, and can connect to a mail server using telnet mail.server.com 25 if this port is open. Computer with dual operating system can (using Linux) do the same. The same computer, with the same hardware (Wifi card etc.), and using the same WiFi router, cannot however use Port 25 and cannot Telnet into any smtp server. So the problem is in Windows 7. I did uninstall all antivirus software and disabled the firewall. The problem is still here. Is there way how find out which software is blocking this port?

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• after install python 2.7.3 yum is broken

  - by user468587

  i installed libxml2-2.9.0 and libxslt-1.1.27 then yum is broken any yum command that i ran i got the result of : There was a problem importing one of the Python modules required to run yum. The error leading to this problem was: No module named yum Please install a package which provides this module, or verify that the module is installed correctly. It's possible that the above module doesn't match the current version of Python, which is: 2.4.3 (#1, Jan 21 2009, 01:11:33) [GCC 4.1.2 20071124 (Red Hat 4.1.2-42)] If you cannot solve this problem yourself, please go to the yum faq at: http://yum.baseurl.org/wiki/Faq then i thought python version is way too old and install python 2.7.3 and install it from scratch, after some wrong trials it got worse and worse, now when i run 'python -V' i got version 'Python 2.7.3', when i run '/usr/bin/python -V', it returned 'python-2.4.3-24.el5', and no matter what i did the yum is still broken with that message. how can i get yum back? my os is: linux 2.6.18-164.11.1.el5 x86_64 GNU/Linux

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• Is there a way to force/manage file locking in windows?

  - by JPbuntu

  I have a 2 Windows machines networked and I am having trouble with simultaneous access to files. I would like only one user to be able to open a file at a time, which I thought was automatic, using file locks.... if the program used to access the file is locking the file. I believe the problem I am having is some of the programs I use, don't lock the file, and there for can be modified simultaneously by multiple users, which is very much not desired. Currently I am having this problem with only two computers, although as soon as I can figure out a solution to this problem the network is going to be expanded to 6 computers, which will include Windows 7, Vista, and XP, as well as a central file server (Samba). Is there a way to ensure that all files opened in windows get locked? Any suggestions are appreciated, thanks.

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• How do I turn off the click sound when closing a tab in chrome?

  - by nos

  Every time I close a tab in Chrome, it makes a click sound. How do I turn off that sound? I reported that issue back in Oct 2010. The problem doesn't appear on all clients and the reason is still unclear. Common attempts at solving the issue include simply turning off the sound in Windows. But I would prefer to solve the problem at the source. Why is Chrome even triggering that sound to be played? And why is it delayed? The problem would be far less annoying if the sound could easily be related to the action taken. Installing the Chrome Toolbox and muting all tabs has no effect on this issue. When switching to a different Chrome user profile, the new user profile does exhibit the same issue.

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• How to make a server check it's own availability on the web?

  - by Javawag

  Hi all, Just a quick question – my server is running at my house serving www pages at www.javawag.com. The problem is that my home internet connection keeps dropping randomly - for about 10 mins at a time. This is only an intermittent problem and will go away soon I hope. However, my server doesn't recover properly - when the connection comes back, I can still access it at 192.168.0.8 (locally) without any issue, but at www.javawag.com there's no reply! (Just an aside - my home internet connection is dynamic ISP, the domain www.javawag.com points to javawag.dyndns.org which in turn points to my IP, updated every minute by ddclient on the server) Is there some way for the server to check if it's accessible from the outside world periodically, and if not restart Apache/reboot? Oh, and if I reboot the problem fixes itself also! Javawag

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• Qmail & Open Relay on local domains

  - by Jonathan

  Hello. I have a dedicated server on 1&1 and I manage it with Plesk. The problem is that if I try to send a mail outside the server, I must to authenticate with the email and the password, but if I send an email to a address inside of my server I don't need neither email or password. This is a problem because the spammers are sending mails without any problem to the server accounts. We are receiving about 900 - 1200 emails everyday! What can I do? I use qmail on CentOS Thanks

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• scp to remote servers stalls, unable to isolate cause

  - by Rolf

  When I copy a large file (100+mb) to a remote server using scp it slows down from 2.7 mb/s to 100 kb/s and downward and then stalls. The problem is that I can't seem to isolate the problem. I've tried 2 different remote servers, using 2 local machines (1 osx, 1 windows/cygwin), using 2 different networks/isps and 2 different scp clients. All combinations give the problem except when I copy between the two remote servers (scp). Using wireshark I could not detect any traffic volume that would congest the network (although about 7 packets/sec with NBNS requests from the osx machine). What in the world could be going on? Given the combinations I've used there doesn't seem to be any overlap in the thing that could be causing the trouble.

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• Why are my USB 2.0 devices hanging Windows XP?

  - by BenAlabaster

  Background on the machine I'm having a problem with: The machine was inherited and appears to be circa 2003 (there's a date stamp on the power supply which leads me to this conclusion). I've got it set up as a Skype terminal for my 2 year old to keep in touch with her grandparents and other members of the family - which everyone loves. It has a generic ATX motherboard with no identifying markings other than one stamp that says "Rev.B". CPU-Z identifies the motherboard model as VT8601 but doesn't provide me with any manufacturer name. On board it has 1 x 10/100 LAN, 2 x USB 1.0, VGA, PS/2 for KB and mouse, parallel port, 2 x serial ports, 2 x IDE, 1 x floppy, 2 x SDRAM slots, 1 x CPU housing that is seating a 1.3GHz Intel Celeron CPU, 3 x PCI, 1 x AGP - although you can only use 2 of the PCI slots if you use the AGP slot due to the physical layout of the board. It's got 768Mb PC133 SDRAM - 1 x 512Mb & 1 x 256Mb installed as well as a D-LINK WDA-2320 54G Wi-Fi network card and a generic USB 2.0 expansion board containing 3 x external + 1 x internal USB connectors - it has a NEC uPD720102 chipset. It has a DVD+/-RW running as master on IDE1 and a 1.44Mb 3.5" floppy drive connected to the floppy connector. It has an 80Gb Western Digital hard drive running as master on IDE0. All this is sitting in a slimline case. I don't know the wattage of the PSU, but can post this later if this proves to be helpful. The motherboard is running a version of Award BIOS for which I don't have the version number to hand but can again post this later if it would be helpful. The hard disk is freshly formatted and built with Windows XP Professional/Service Pack 3 and is up to date with all current patches. In addition to Windows XP, the only other software it's running is Skype 4.1 (4.2 hangs the whole machine as soon as it starts up, requiring a hard boot to recover). It's got a Daytek MV150 15" touch screen hooked up to the on board VGA and COM1 sockets with the most current drivers from the Daytek website and the most current version of ELO-Touchsystems drivers for the touch component. The webcam is a Logitech Webcam C200 with the latest drivers from the Logitech website. The problem: If I hook any devices to the USB 2.0 sockets, it hangs the whole machine and I have to hard boot it to get it back up. If I have any devices attached to the USB 2.0 sockets when I boot up, it hangs before Windows gets to the login prompt and I have to hard boot it to recover. Workarounds found: I can plug the same devices into the on board USB 1.0 sockets and everything works fine, albeit at reduced performance. I've tried 3 different kinds of USB thumb drives, 3 different makes/models of webcams and my iPhone all with the same effect. They're recognized and don't hang the machine when I hook them to the USB 1.0 but if I hook them to the USB 2.0 ports, the machine hangs within a couple of seconds of recognizing the devices were connected. Attempted solutions: I've seen suggestions that this could be a power problem - that the PSU just doesn't have the wattage to drive these ports. While I'm doubtful this is the problem [after all the motherboard has the same standard connector regardless of the PSU wattage], I tried disabling all the on board devices that I'm not using - on board LAN, the second COM port, the AGP connector etc. through the BIOS in what I'm sure is a futile attempt to reduce the power consumption... I also modified the ACPI and power management settings. It didn't have any noticeable affect, although it didn't do any harm either. Could the wattage of the PSU really cause this problem? If it can, is there anything I need to be aware of when replacing it or do I just need to make sure it's got a higher wattage than the current one? My interpretation was that the wattage only affected the number of drives you could hook up to the power connectors, is that right? I've installed the USB card in another machine and it works without issue, so it's not a problem with the USB card itself, and Windows says the card is installed and working correctly... right up until I connect a device to it. The only thing I haven't done which I only just thought of while writing this essay is trying the USB 2.0 card in a different PCI slot, or re-ordering the wi-fi and USB cards in the slots... although I'm not sure if this will make any difference - does anyone have any experience that would suggest this might work? Other thoughts/questions: Perhaps this is an incompatibility between the USB 2.0 card and the BIOS, would re-flashing the BIOS with a newer version help? Do I need to be able to identify the manufacturer of the motherboard in order to be able to find a BIOS edition specific for this motherboard or will any version of Award BIOS function in its place? Question: Does anyone have any ideas that could help me get my USB 2.0 devices hooked up to this machine? Edit: Updated the USB 2.0 info with reference to actual card - http://www.xpcgear.com/lpnec4u.html

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• Single domain user can't install a specific shared network printer

  - by drpcken

  I have a file server serving up shared network printers. Never had any issues in the past. I have a specific domain user (just 1) that gets this error when trying to install a specific printer: You do not have sufficient access to your computer to connect to the selected printer This user can install all the other printers no problem. All my other domain users can install the printer with no problem. I've removed the driver from the local client and tried again but with the same problem. Even as an administrator I get this error. Is there something I'm missing?

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• Unable to see some Russian id3 tags in ncmpc

  - by ??????? ???????????

  I'm running urxvt with the current env: $ env | grep LC LC_ALL=en_US.UTF-8 The problem is either with ncurses or ncmpc and I was wondering if anyone could shed some light on what the problem might be. This could also be an issue with the ID3 tags and any advice on working with broken or misconfigured encoding settings in meta tags in mp3 files is also welcome. I have been ignoring this matter for years and it has finally gotten to me. The bizarre thing is that some filenames or tags work, while others do not. What I have tried the following: setting LC_ALL to these values (whatever is before the space) ru_RU.KOI8-R KOI8-R ru_RU.UTF-8 UTF-8 ru_RU ISO-8859-5 rebuilding the MPD database with id3v1_encoding "ISO-8859-1" or id3v1_encoding "UTF-8" I can demonstrate the problem with two screen shots, as it's the easiest way to do so: Expected output (mpc works well): Broken encoding (ncmpc):

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