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• RAID1: Which disk will be mirrored?

  - by tmelen

  How does a RAID1 system determine which disk to use as the source and which disk to use as the destination when mirroring? Assume for instance the following scenario: A RAID1 array is created with two disks A and B. A is replaced by disk C, which is added to the array. Files are beeing modified as time goes by. Now B is removed and A is reinserted. Will the RAID1 system realize that A and C are out of sync? And that C is more up-to-date than A? And if not, is there a safe way to avoid the mirroring process to start immediately when disk A is inserted?

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• Portable VirtualBox with Ubuntu on two machines

  - by eactor

  I have VirtualBox Portable installed from vbox.me. I moved it on a USB drive and added a virtual Ubuntu. It works fine on the computer I created it, but moving the usb drive to a different the Ubuntu does not start any more. I already changed location descriptions in <machine>.vbox and the VirtualBox.xml. When pressing Shift while starting the GRUB loader comes up, so I tried the recovery mode. Same here – startup freezes and nothing happens. Any hints for me? Last to happen in log file: 00:00:54.986 Display::handleDisplayResize(): uScreenId = 0, pvVRAM=06aac000 w=640 h=480 bpp=32 cbLine=0xA00, flags=0x1 00:01:06.361 Display::handleDisplayResize(): uScreenId = 0, pvVRAM=00000000 w=720 h=400 bpp=0 cbLine=0x0, flags=0x1

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• problems with my touchpad on my netbook

  - by user23421

  ive been having trouble with my touchpad its a synaptic pad. my problem is whenever i drag my finger across i a lot of times get this grey circle and i cant move anymore i have to take my finger off and start again its very annoying and the icon for the touchpad thats by the clock gets like a curved arrow in it and if i move my finger a little bit while this grey circle appears the arrow rotates in a circle its very weird! i have a Asus 1101HAB netbook and ive tried to update the driver when the asus updates appear and when i do it and restart the computer, then a couple days later maybe it pops up again saying i have an update and its for the touchpad and its the same version... not sure if its a bigger problem its only a week old that ive had this computer. If someone could help it would be much appreciated.

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• Computer won't stay powered up

  - by Android

  I have just tried to turn my PC on this morning and it won't stay powered up. It will come on as normal for about 5 seconds, not quite long enough for the monitor to wake up. Then it will power off. After about 2 seconds it will start again, it will continue like this until I pull out the plug. Plugging it in again doesn't restart the cycle although pressing the power button does. I have tried to clear the cmos but beyond that I have no ideas. It was working perfectly when I put it in hibernate last night. NOTE: I am using a Dell Optiplex 755 UPDATE 1: I took out the motherboard battery and it almost came on then it displays the message Error loading Operating System UPDATE 2: After taking out the custom video card, it says "No hard drive present"

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• Word 2010 doc skips pages

  - by Sarah

  A Word document with 9 pages, 3 section brakes next page (no odd and even breaks used) and inserted page numbers shows the correct sequence of pages when moving thru the document. When I change the page numbers in section 2 to start from 1 (Section 1 is only one page numbered with a roman numeral.) Then two strange things happen: The sequence in the status bar goes from 1 to 3. Page 2 disappeared (no text is missing) and my total number of pages reads 10 when i actually only have 9. The first page has a table of contents. Page 2 is listed, but when I press ctrl + click the shortcut it goes to page 4?

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• How to make one CPU to be used simulataneously be three different users

  - by beginning_steps

  As a bootstrapping start-up we are thinking of saving on the IT hardware cost by making more use of the hardware that we have. As a solopreneur I have a laptop config : intel core2duo processor, 3Gb RAM and 250 GB RAM. Now we are planning to increase our team to 3 members. Will like your suggestions on the nest cost-effective step that I can take so that I can use the computing power of the existing laptop to act as a kind of server and then buy to more monitors where the new recruits can do the daily work on and they need to have different login id and access and they dont need access to all the files/applications as are available in my laptop. We use internet intensively to do our day to day activity. Please share you experience, whether you think this is a good ploy or there is any other more effective way of achieving the same result.

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• Debian virtual server hangs on reboot, need help debugging

  - by BubuIIC

  I'm admin of a Debian 6 virtual server. I've been trying to diagnose this problem for a while but haven't gotten anything. The server hangs every time I want to reboot it. All services seem to be shutting down, I lose ssh connection. Then nothing. I have to restart it through the hoster's web-interface, which just gives me the options "Normal Boot" and "Rescue System". Normal boot then brings the server back to life. Possibly (probably?) related, the server does not boot into a newer kernel version, it's running 2.6.18 right now, but installed is actually 2.6.32. I don't know whether it hangs on shutdown or on startup, but booting through the web-interface works (except the kernel part). Am I missing something obvious? Where should I start looking? I have no idea how to diagnose the problem.

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• Running a cronjob

  - by Ed01

  've been puzzling over cronjobs for the last few hours. I've read documentation and examples. I understand the basics and concepts, but haven't gotten anything to work. So I would appreciate some help with this total noob dilemma. The ultimate goal is to schedule the execution of a django function every day. Before I get that far, I want to know that I can schedule any old script to run, first once, then on a regular basis. So I want to: 1) Write a simple script (perhaps a bash script) that will allow me to determine that yes, it did indeed run successfully, or that it failed. 2) schedule this script to run at the top of the hour I tried writing a bash script that simple output some text to the terminal: #!/bin/bash echo "The script ran" Then I dropped this into a .txt file MAILTO = *****.******@gmail.com 05 * * * * /home/vadmin/development/test.sh But nothing happened. I'm sure I did many things wrong. Where do I start to fix all of this?

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• Solr on Tomcat (Ubuntu OS) installation help

  - by Camran

  I have to install Solr on my Ubuntu Server. However, Solr wont work without Tomcat or another container, and also Java. I have successfully installed tomcat6 and java. BUT, in a tomcat6 guide online, it says I should configure iptables to allow connections via port 8080, which I have done. Then the guide says I can test the tomcat6 by going to: http://my_ip_adress:8080 But this makes the browser just load and wait somehow for a response, and finally display "website not available". I have NO clue how to install Solr with Tomcat. Does anybody know how? How do I know Tomcat6 works? BTW: When I do this: /etc/init.d/tomcat6 start then it says OK. If you need something let me know, I really need help with this one. Thanks UPDATE: When executing this: sudo /etc/init.d/tomcat6 status it respons is Tomcat servlet engine is running with pid 28641

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• direct url to server ip address and port

  - by AM0

  We have a Windows 2012 dedicated server. There’s a custom service running on port xxxxx which accepts connections from our custom built hardware devices over TCP/IP port. As of now we use servername.serverdomain.com:xxxxx to connect to the service and start communication. However, we prefer to use URL instead of server’s name or IP Address. So we got a custom url and set its name servers to point to dedicated server. However, just setting DNS doesn’t seem to be working. Could someone please guide as to how to get it working? UPDATE In short I want www.custom-url.com being forwarded to servername.serverdomain.com:xxxxx. These requests are coming from hardware and not browser.

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• Installing packetfence

  - by BrNathan

  I asked in the Ubuntu area, but thought I would get a better answer here. Was anyone able to install packetfence on Ubuntu 10? I tried a tutorial, but didn't have any luck. Some of the services installed and are working apache with php, snort, pfdetect, and pfdhcplistener. I can even get info with pfcmd node view all, but for the life of me I can't get it to work with apache2. When I run pfcmd service pf start I also get an error uninitialized value $_[7] in join at /usr/local/pf/lib/pf/class.pm line 170

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• How do I display the Java console?

  - by Brian Knoblauch

  I'm aware of the fact that you can set it to "show" in the Java control panel, but that's not what I'm asking about. I'm curious about the other options... "Do not start" is pretty straightforward, but what about "Hide"? That would seem to imply that it is indeed running. If so, how can I make it show on demand from the hidden state? Reason: It's annoying to have it open ALL the time, hoping there's a way to (preferably via keystroke) bring it from "hidden" to "shown" state for occasional debugging.

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• Western Digital Caviar SE16 not recognized

  - by NStorm

  Before I start, I have been looking at quite a few websites and I still have not found an answer to my problem. I have been building my own computer recently and I have just received the hard drive (WD Caviar SE16 WD5000AAKS) I was planning to put in my computer. After connecting the SATA power cable (99.99999% sure it is connected correctly) and the SATA cable to my motherboard (ASUS M5A78L-M/USB3) I booted my computer into a Linux Mint 13 XFCE 64-bit live USB expecting to see a hard drive when I came to install. Sadly when I checked the only hard drive that was showing was /dev/sda which was my USB with the Linux files on it. I also checked gparted and no hard drive other than my USB was showing up there either. Lastly I checked my BIOS and no matter what SATA port I connected the HDD to it wouldn't show up there either. Does anyone have any advice? Some images of my set-up which could help are bellow: Thanks in advance, Nick

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• Windows always logs in to temporary profile (thinks it is in D while it is in C)

  - by asdf

  I have Windows on C: Disk 0 Partition 1 When I start it works fine until the login screen. When I log in, it starts to display "preparing your desktop.." and logs in to a temporary profile. I have to run explorer.exe manually then using task manager. If I execute %SystemRoot% it tells me that Windows could not find D:\Windows. (while Windows is in C:) I have no such drive as D then why Windows is thinking it is in D? I've tried this Bootmanager is missing but it did not work. Bootrec /ScanOS from Windows setup gives me Total identified Windows installations: 0 Also note that Windows Setup correctly thinks windows is installed on C but Windows itself thinks it is on D.

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• Excel macro to delete empty rows isn't stopping

  - by RocketGoal

  How do I make it stop after a certain amount of rows? I've taken a VBA course and my teacher explained how to delete empty rows. I'm now trying to put this in place but my macro isn't stopping. I thought I had limited it to 200 rows. I'm missing something important. Any pointers much appreciated. Sub RemoveRows() ' Remove rows from last blank cell Dim LastRow As Long Dim ISEmpty As Long 'Count how many records in the list. This is done so that the Do loop has a finish point. LastRow = Range("A200").End(xlUp).Row 'Start at the top of the list Range("A1").Select 'Loop until the end of the list Do While ActiveCell.Row < LastRow 'Assign number of non empty cells in the row ISEmpty = Application.CountA(ActiveCell.EntireRow) 'If ISEmpty = 0 then delete the row, if not move down a cell into the next row If ISEmpty = 0 Then ActiveCell.EntireRow.Delete Else ActiveCell.Offset(1, 0).Select End If Loop End Sub

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• Use `dd` linux program to save / recover a disk's MBR

  - by Graduate

  I have an Ubuntu OS installed on my laptop. I want to install Windows 7 as well to another disk partition (I will do it by recovering it from a special partition on my laptop). After installing Windows, I want to recover my hard drive MBR to be able to load Ubuntu. I have a plan to use linux dd program: 1) (Before installing, perform this command in Linux) dd if=/dev/sda of=/home/user/mbr_backup bs=512 count=1 2) (after installing, load Ubuntu Live CD and launch this) dd if=/home/user/mbr_backup of=/dev/sda bs=512 count=1 3) Load Ubuntu on PC and re-configure the GRUB2 to be able start Windows I need your advice, I want to be sure I won't damage the disk (it's partition table).

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• Error configuring virtual hosts with Apache on Windows 8 [on hold]

  - by rushd

  I can't get virtual host to work on my Windows 8. I restart, stop, start Apache, but I get a popup dialog that says: The requested operation has failed! I know it's the line that produces the error, but how can I enable vhost if I don't uncomment the line in httpd.conf? # Virtual hosts Include conf/extra/httpd-vhosts.conf The only thing I did was edited C:\Apache24\conf\httpd.conf by removing the comment on Include conf/extra/httpd-vhosts.conf and edited the file located in C:\Apache24\conf\extra\httpd-vhost.conf. Apache is installed in C:\Apache24 Directory I want to use for Virtual Host is located at C:\Users\TomCODE\brainprojects My vhost.conf looks like this: <VirtualHost *:80> ServerAdmin [email protected] ServerName brain.local DocumentRoot "C:/Users/TomCODE/brainprojects" ErrorLog "logs/brain.local-error.log" CustomLog "logs/local.local-access.log" common </VirtualHost> My hosts file: 127.0.0.1 brain.local I downloaded the file httpd-2.4.9-win64-VC11 from Apache Lounge.

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• Why OS X use swap when there is lots of "inactive memory"?

  - by Balchev

  I am using OS X from few months (Lion and now Mountain Lion). I have 8 GB on my mini and almost daily now it get close to that. On Windows 7 machine with 8 GB I never had that kind of problem. Anyway, I read over the net, that the inactive memory is app cache of the programs that are recently closed and can be used for faster reopening.And this inactive memory can be released to a new app if needed. It is not released. Instead OS X starts swapping. So my question is why OS X use swap when there is lots of "inactive memory"? Here a screen that shows what I mean: I really hope there is a away to make OS X to use those 2.69 GB before start swapping.I really do.

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• Resize2fs at 81h and counting

  - by Adam

  Setup: 12x 1TB drives in a RAID6 (MDADM) crypt-setup running ontop of MDADM LVM running on the crypted drives EXT4 on the LVM Background: I added a new drive to the RAID (increasing from 11 to 12 drives), and 'bubbled' up through the layers (MDADM, etc...) to reizing the ext4 partition. This machine is used as a centralized repository for photography and as a backup server (for both Windows and Mac machines) so bringing it down to add the drive and wait for the resizing and everything wasn't really an option. So I started the resize operation several days ago. HTOP is reporting the resize2fs operation as running for 81h now. DMESG and syslog are both clear, and the drives are still accessable. The resize command reports it's started an online resize of the partition, so the process IS running, and it is burning through 100% of one of my cores. Question: Is it normal for the operation to take this long or has something gone horribly wrong? Where would I start looking for signs of trouble?

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• All program links (icons, menu items) try to use Adobe Reader to run them

  - by Rob

  My mother was opening Internet Mail to check her mail on her new Windows 7 PC and a pop-up window asked her if she wanted to use Adobe Reader as the default program instead. She must have clicked yes. Now all of the Start Menu and Desktop icons have the adobe logo and appear to try and use adobe to execute the programs. Has anyone encountered this and were they able to fix it? She tried to associate another program and ended up having the Internet Explorer icon and program replacing the Adobe icons. This woman can tear up a steel ball with a rubber mallet.

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• dell E6500 laptop will not hibernate/standby

  - by Mark Schultheiss

  I am using a Dell E6500 laptop with windows XP on it, it was originally tagged/installed with Windows Vista. My issue is, when I close the lid, it will not either Hibernate or Standby. If I close the lid with either of these options, I then have to startup from scratch, and anything I had open is not open. I just want to close the lid, have it keep what I have running, not use power util I open the lid again and start it up (with the stuff still open I had open of course). Suggestions?

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• Why doesn't my cron.d per minute job run?

  - by Travis Griggs

  I have thrown a bunch of darts trying to get a python script of mine to execute every minute. So I thought I'd simplify it to just do the "simplest thing that could could possibly work" once per minute (I'm running debian/testing). I created a single line file in /etc/cron.d/perminute: * * * * * /bin/touch /home/me/ding_dong It's owned by root, and executable (not sure if either of those matter). And then I did: sudo service cron reload And then sit back and start running ls -ltr again and again in my home directory (/home/me). But my ding_dong file never shows up. I know if I do a sudo /bin/touch /home/me/ding_dong, it shows up right away. Obviously missing something stupid here.

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• Is it normal that Software installs in Admin user folder?

  - by RoToRa

  I've got a new computer with Windows 7, which I'm using for the first time. For security I decided to create a standard user for everyday work instead of using an admin account. However when I install programs logged in as the standard user (such as Aptana right now) they always try to install in the admin's user folder (C:\Users\Admin\AppData...). I'd expect the programs to install to the standard user's folder or Progran Files as in XP. This also leads to that I need to grant admin rights whenever I start such a program. Of course I could just change the installation path every time, but I find this behavior strange. Ist it normal, or did I somehow mess up the Windows 7 installation?

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• Setup of Citrix-Client (xenapp) doesn't work on Windows Vista Utimate

  - by Ice

  I have a notebook with a fully patched Vista Ultimate and there was a Citrix ica-client installed for access on our citrix-server(s). Once the client couldn't access the server – it took so much time ( 5 min) and everything froze. I did an uninstall und cleaned up the registry. But now it's not possible to reinstall a xenapp-client even the newest directly from www.citrix.com. What could be the reason? How to fix this issue? PS: At the moment I start a vm with an XP and the citrix-access runs like a charm, but that only could be a work-a-round.

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• Should I create a second WAN Interface for a new SSLVPN setup on my Sonicwall 2400?

  - by TheSuperman

  Sonic Wall 2400 I'm setting up a new SSLVPN on our Sonicwall, very new to this. I currently have an exchange server as well, so mail.company.com is directed to our mail server. I'd like to setup a clean link for my low end users, remote.company.com to be for the SSLVPN, but I'm not sure how to do this within the Sonicwall? I setup SSLVPN on port 443. Only 1 WAN setup, on the X1 Interface. We have an A record setup with the same static IP used on the WAN Interface, and is configured for mail.company.com. Should I use a new static IP from our block of usable IP's to create the new Remote.Company.com? If so, I have no idea where to start on this on the Sonicwall? Any suggestions?

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