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• MPICH2 vs KERRYGHED

  - by user40135

  Hi All right now I am moving first steps in clustering. I installed MPICH2 on my Ubuntu at home and I have a silly question about it. For what I am reading right now it seems that it provides the capability of sending processes to other pcs. I went for this lib just because I set it up very quickly and easily. Compared to MPICH2 , do you know what is the advantage of having a different clustering system like KERRYGHED? It seems that these ones also provide this capability, but the Kernel must be rebuild, so I suppose that it is going to be faster. What other advantages are remarkable for a clustering system like this? Thanks

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• Doing "text mode 'splash' game" during boot.

  - by Vi

  Sometimes I want to do something (for example, playing a simple text-mode game) while the system is booting up. This is especially useful when lengthy reiserfs transaction replays are happening. Current hacky way of doing it is: Put the program on initramfs. Before running /sbin/init, "openvt 2 /my/program". Turn off messages from kernel (sysrq 0) Override /dev/console with /dev/null (to prevent boot messages). The problems are: There are STILL some messages interfering with program output. I can't see boot messages by switching to that virtual terminal back. After finishing the boot sequence, /dev/tty2 ends up being attached both to getty and my program. How to do it properly without of running graphical splashes? The system is Linux Debian Squeeze, no dependency based sysv scripts.

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• "Cannot allocate memory " error whle copying data from window to ubuntu

  - by John

  I have Ubuntu 9.10 installed inside VM of server 2008. WHen i try to copy the data from the network and paste insid ethe Ubuntu it says error called "Cannot allocate memory " I have 3GB RAM attached to the Ubuntu I tried above suggestion but still im unbale to copy file from my host machine i.e. Windows XP to my Ubuntu machine ( which is at Virtual Machine) Im trying to copy jdk-1_5_0_22-linux-i586.bin file whose size is 47.4 MB Is there any other work around for this problem???? I tried Set the following registry key to ’1': HKLM\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management\LargeSystemCache and set the following registry key to ’3': HKLM\SYSTEM\CurrentControlSet\Services\LanmanServer\Parameters\Size but still im unbale to copy file from my host machine i.e. Windows XP to my Ubuntu machine ( which is at Virtual Machine) Im trying to copy jdk-1_5_0_22-linux-i586.bin file whose size is 47.4 MB Is there any other work around for this problem????

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• Windows Server 2008 freezes when I run programs as administrator

  - by user5795

  I am working on a machine running Windows Server 2008. Every program I have tried to run (firefox, notepad, wordpad) works fine, but if I right-click on any item on the desktop or the start menu and select "Run as Administrator" it freezes. I can move the mouse around and open/close the start menu, but the items in the start menu do not change color when the mouse hovers over them. I googled for answers for some time but had no luck. Does anyone have any ideas that I could try? (Update: I forgot to mention that the machine is virtual and I am using VMWare Workstation. In order to answer the questions below, I have been going to the same snapshot of the system each time. This lets me start the system in the exact same place each time in order to answer your questions and test.) (Update: When I run any process as administrator and it freezes, I can start task manager, but I cannot see the new process (notepad, etc...) )

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• Copied XEN vm to new host - boots up asking to fix the HD (win2003 guest)

  - by Mister IT Guru

  I have an old box running CentOS 5.4, and XEN. It has a 2003 Guest that I wish to move over to another CentOS box running XEN. I stopped the machine, and have SCP'd the HD image files of the guest to the new host. I ran md5sum on the files, and they are identical. When I configure a new Guest, it fires up, but windows fails to boot asking to fix the system instead. The HD are identical, so I'm guessing there is something that I missed. I don't want to go through this procedure, because the system needs to be identical. How can I get one VM to run seamlessly on another host? Any ideas, and comments are 100% appreciated. Thank You

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• How do I block a single css file from being loaded with firefox or chrome?

  - by Tim Santeford

  I want to be able to block one css file from loading on my system. The site has multiple sheets that I do want to load but it has one hideous theme.css file that I just have to get rid of. I would prefer to use Chrome but FF is ok too. A system wide ban on the file would be ideal. I want to specify a single url that the computer becomes incapable of fetching it. I will then use stylish to create my own replacement. BTW its a SharePoint theme and it has way too many rules to have to override. Thanks

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• When I move or delete files, they occasionally appear right back where they were a day later

  - by Shane Nault

  When I move or delete files, they occasionally appear right back where they were a day later. Also, when I move files, they not only re-appear where I moved them from, they are also where I moved them to as well. Is my system duplicating files? It seems so. This problem has been occurring randomly, but with increasing regularity. Most of the issues are with downloaded music and image files, but it has happened occasionally with Word documents as well. Also, some of my desktop icons have reappeared after I have moved or deleted them. I have run extensive system scans for malware, viruses and the sort but nothing pops up. Is there something wrong with my settings or is there another problem? I use Windows 7, SP 1 with all current updates, and have a few other issues. I was worried that perhaps some of my settings were incorrect.

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• USB drivers stopped working in Windows 8

  - by Maxim V. Pavlov

  I have installed an MSDN version of Windows 8 Professional (x64) RTM. For about 3 restarts everything worked well. But once I've rebooted again - USB drivers (all of them, inluding the USB 3 drivers) stopped working. Device Manager properties said that the USB driver is not compatible with the system. Gigabyte doesn't list Windows 8 drivers for my MB X58A-UD3R. Tried to reinstall windows 7 USB drivers - system said the current driver is fine and didn't want to reinstall. Is this the common Windows 8 problem? How can solve it or debug it even more?

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• Recover deleted files on windows 2008 file server

  - by aniga

  We have recently been hit by a weird virus which made all files and folders a system files/folders and also it hid all files and folders par some weird ones it created including: ..exe porn.exe secret.exe password.exe etc We have managed to restore the files with attrib command to unhide and unmark them as system files however we have noticed that we are missing some 4 to 5 folders of which (based on my luck) 2 of them are the two most important client we have. I am not sure if these files were deleted by the worm/virus or by my colleagues who are not owning up to them but the files are now gone. Worst of all, we do not have any backup what so ever (Yes I know, we should not have done that but it is a lesson learned and since last night we have created two forms of backup systems one to external device and one on the cloud, but I doubt any of that will help us now) We have 1 Windows 2008 File server and 4 client computers based on Windows 2007. I would be grateful if anyone can help us on how we can recover from this disaster which could potentially put us out of business.

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• When Chromium OS will be lounched for free download?

  - by user34388

  Thank you in advance! I would like to test this operating system!

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• What OS for Eee PC ?

  - by crivateos

  Hello. I've just bought new Eee PC 1005 (with Atom N450, 250GB and 2GB memory) without any pre-installed system. Now I'd like to install windows and linux distribution on in. What should I choose ? I am a programmer and web designer, so I need Java IDE , Python interpreters, and Photoshop (on windows). Will Win 7 Pro 32bit work ?Or should I choose Windows XP ? And what about linux distro ? Ubuntu, Eeebuntu, Ubuntu netbook edition ? btw is it true that linux's grub overrides mbr so that hardware system restore doesn't work ?

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• I have no sound in my Media players

  - by Lefteris Gkinis

  I have Windows Professional x64 with two sound cards. for many months these cards (and the all sound system) was working fine. Suddenly my System (my PC) stops having sound. from WINDOWS MEDIA PLAYERS and for any other media players The default sounds from windows are working fine but I don't have sounds from media players. Also I open the "Sounds And Audio Device Properties" and in "Volume"Tab I press "Advance". There I receive an error "DirectSoundSetting not available". I have already Uninstall and re install my sound cards... But Nothing. Did anyone knows where the problem is?

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• Does searching a keyword on Google make the crawlers look harder in the future?

  - by Foo Bar

  Do the search requests made by the users influence the Google crawlers "attraction" by this keyword? Let's say Google has some hits on a specific keyword in the search index. And now I search for exactly this keyword. Will the Google crawlers react to the search and keep looking more intense for pages that could match this keyword? A reason why this could be important: Privacy when searching yourself. Assume you just want to know how much Google (and thus other people) can find out about you. If now any (statistical) additional search for your name trigger the crawlers even one step harder to find even more about you, it would have the negative effect that you would actually be found easier in the future, even though you had the intention and hope to find out how few Google finds about you. It's a bit like the dillema in quantum mechanis: Does observing the system automatically change the system?

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• How do i keep a newly started program from taking focus?

  - by Jugglingnutcase

  Say i'm coding in emacs and want to start up a music program. Because it takes too long to start up i go back to coding and type away. When the music application starts up, the focus is stolen (gasp! stolen!) away from emacs and goes to the music application, often mid-thought. Is there any way to keep this from happening and have the newly started application not have focus until i see that it's up and ready to be used? Besides getting rid of my ADD of course. Or getting an impossibly fast computer that can keep up with my mind. i'm using a Windows XP system, but i will soon have a Windows 7 system, and i have Linux at home.

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• Shell script to fix bad filenames? [closed]

  - by Ze'ev

  I'm IT at my small firm; and, despite my dire warnings, everyone puts files on the server with awful names, including leading & trailing spaces, bad characters (including \ ; / + . < > - etc!) They do this by accessing the (FreeBSD/FreeNAS) server via AFP on Macs, so no part of the system complains. Is there a script I can use to go through an entire directory tree and fix bad filenames? Basically replace all spaces & bad ASCII with _ ... and if a file already exists, just slap a _2 or something on the end. I don't suppose there's a way to get the system to enforce good filenaming conventions, is there?

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• Disable writing RAID degraded mode

  - by jolivier

  I have a RAID5 with 5 disks on my machine and suspect the motherboard chipset to fail at some points and make my raid going in degraded mode. Last time it happened I noticed it on the failure of the 2nd drive connected to the same chipset and lost a lot of data. So I would like to prevent this, and especially I would like to have mdadm disable writes on the raid if one of the disk fails. So that in between I get notified, I recover and can use my system again. Sadly I could not find it in man mdadm so I was wondering if this is possible via a tool or hidden option since for me it looks like a standard feature of a RAID system. If this is not possible I would also be happy with a solution to stop the raid if degraded.

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• What is the best way to shutdown hard disk?

  - by Sunil

  Right Now I'm using hdparm command in unix to shut down the hard disk but there are few issues with it. when it wakes back up it consumes lots power. Is there any other way to do it? Many times when I put my hard disk to sleep, I can see few bursts at the beginning and then after a while it goes to sleep. I think its because of the journaling system in ubuntu (which I use) Have anybody encountered that? What would be the best linux/unix operating system (eg: ubuntu/centos/redhat) to work on extensive hard disk operations? I would highly appreciate if you could share the problems you encountered while doing this operation.

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• Store and Encrypt data over the internet.

  - by sotsec

  I am trying to build a system where I will be able to access my files remotely. I want to setup an external hard drive or a NAS that I will access over the internet, and I want every file that is stored on that system to be encrypted. Could you please suggest me what is the best way of doing that? Or if you have any knowledge, what is the best way to access your files remotely with maximum safety? but the same time the space that the files are allocated is protected against theft(encryption) etc. thank you

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• Can I install fresh Linux accross partitions (LUKS & LVM) and preserve/use existing home user?

  - by xtian

  With an existing LUKS encrypted logical volume partitioned hard disk dual boot to Windoz and Linux (Fedora 15), is it necessary to "start over" with the LUKS setup when upgrading the system? I recall some note about dividing the Linux installation over different partitions would help to preserve the home data in future update (I can't find this now) Before I try it, is this possible and intended use case for partitioning a Linux installation? # lsblk -fa NAME FSTYPE LABEL MOUNTPOINT sda [80G] +-sda1 [system W95 FAT 32] vfat +-sda2 ext4 /boot +-sda3 [52.4G] crypto_LUKS +-luks-de25ac97-6a32-4b79-a6a0-296a39376b3b (dm-0) LVM2_member +-cryptVG-root (dm-1) [21.5G] ext4 / +-cryptVG-swap (dm-2) [5.4MB] swap [SWAP] +-cryptVG-data (dm-3) [25.6G] ext4 /home

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• Windows XP crashes by GT610 driver (nv4_disp)

  - by undone

  I have a PC which was working fine but one day screen went dark and nothing was shown. I thought the problem is graphic card, so I replaced it with new one. I bought a new graphic card (GeForce 610) and installed it on my system. I formatted my hard-drive and installed a fresh Windows XpSp3 and its drivers. Everything was fine but after installing graphic card's driver, I got an error saying windows got stuck in an infinite loop and it couldn't get out (in nv4_disp). I uninstalled it and downloaded its last version and installed it. Unfortunately, I got the same error and windows restated! Here's my system: Pascal Motherboard PT880PRO Intel CPU Windows XPSp3 I searched this issue on the internet and I found bunch of suggestions (from cleaning hardware to installing latest version of its driver) but nothing help! Any help would be appreciated! Thanks.

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• how to protect php app (vbulletin) from hackers

  - by samsmith

  Our vBulletin system is under constant attack, raising cpu load and making the system very slow for legit users. The attack is a script type attack that is attempting to log in and/or create new login ids (mostly it is trying to create login ids in order to spam the site). In vBulletin, we have black listed large ranges of ips, which has helped a lot, but the attacks continue. Is there an automated way to protect the application or web server? ideally, the protection would detect the pages accessed and automatically black list the ip.

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• Can I mix drive types in an HP server?

  - by Generic Error

  I currently have the following setup: HP DL380 G4 Server 6 x 73GB, Ultra160, 10k, SCSI 80 Pin Drives Smart Array 6i Controller RAID 5 One of the drives is failing and needs to be replaced. I have on hand drives that are the same size and type, but are Ultra320, 15k instead. I have verified that these drives work in another system with the same type of drive controller. When I plug one of these in the system simply reports the drive as being offline and has nothing further to do with it. From what I have read these drives should be compatable. Should this work at all and if so, what might be preventing it?

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• Why does Windows 7 update fail with error 800706BE?

  - by parsley72

  I have 18 updates appearing for Windows 7 x64 but when I try to install any of them I get the error 800706BE. The Microsoft help that appears gives several solutions: Fix It button. This downloads MicrosoftFixit50123.msi from http://go.microsoft.com/?linkid=9666880 (963KB). After running it displays the message "This Microsoft Fix It has been processed". System Update Readiness Tool. This is actually in response to error 800B0100 which isn't the one I'm seeing. You download the file from http://windows.microsoft.com/en-US/windows7/What-is-the-System-Update-Readiness-Tool (362 MB). After running it says "Do you want to install the following Windows software update: Hotfix for Windows (KB947821)"

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• Ubuntu Volume overriding settings set in Alsamixer

  - by Hayek

  Problem: How do I "lock in" the volume I set through alsamixer? I'm running Ubuntu 9.10. I adjusted the bass/treble columns in alsamixer but changing the system volume resets them all back to 100% I did save the settings by running alsactl store but everything is reset once I touch Ubuntu's volume icon in the top menu bar. This is rather painful because the computer is hooked up to a 650watt system with a massive subwoofer. As much as I enjoy my music, there's no need to have the walls vibrate :) What can I do to prevent Ubuntu from overriding the settings?

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• How to stop LDAP authentication in ubuntu?

  - by Kery

  My OS is Ubuntu 12.04 and use LDAP authentication. Now I meet a problem that another people want to access my system. But he is in another domain so he can't login. And I have no right to change this configuration in LDAP server. So I have to choose a workaround to solve this problem, for example close the LDAP authentication and use local authentication (I have root right in my system) or create another account which is not registered in LDAP server (I did this but can't change the created account password. The error is 'password reset by root is not supported'). Of course any other suggestion is appreciated! Than you in advance!

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