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• Install user scripts on Chrome

  - by Ahatius

  I created a JavaScript file, and named it test.user.js. I tried double clicking it, dragging & dropping it into Chrome and opening it with Chrome, but it won't install. I've already installed the dev version of Chrome, because it's stated somewhere that it's needed, but I can't get it to work. Then, I tried searching for a Chrome Greasemonkey addon, just to see that it was no further developed on, because Chrome has built-in support. Could someboy tell me what I have to do in order to get user scripts working on Chrome v21?

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• Subdomain working externally only

  - by Digital Dan

  I am running a Windows Server 2008r2 web server with IIS. I have dev.domain.com and it works fine externally but when I try to access it from within the network it doesn't work. Is there a way to get this to work without changing the dns records for the whole network? I just have IIS Admin rights because our IT is done out of house. I can ask them to add it but I was hoping for another way. Thanks!

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• Windows7: Which app has a notification sound with 3 descending notes?

  - by Eric

  Brand new Win7 box loaded with the usual dev tools -- VS2008, Firefox, Chatzilla, Thunderbird, emacs, Pidgin, Putty, iTunes, SharpReader. Every couple of minutes, I get an audio notification consisting of three rising notes, maybe a middle-C-G-F on a piano (I don't have a piano handy, and don't have time to use GarageBand to try to figure it out). Nothing in the notification bar is flashing when this happens. The sound isn't in any of the Windows Sound control panel applets. And it's not in C:\Windows\Media, so it's most likely coming from a non-Microsoft app. Is this familiar to anyone?

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• Linux cannot alter partition table of main hard disk of my laptop

  - by djechelon

  I run openSUSE 12.2 on my ASUS N76VZ laptop. My problem is that I cannot alter the partition table of first hard disk /dev/sda1. YaST partitioner says it's unreadable, but actually it can read it but not alter it. It doesn't tell me anything else, except that I can wipe the partition table (having to reinstall Windows for the third time). Since I want to create new partitions on that disk, how do I fix the partition table layout? I could create new partition from Windows Computer Management and format them in Linux. I could do this, but it doesn't explain the problem

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• Clean Install: Ubuntu 8.04, 10.04 or somthing else?

  - by Robert S. Barnes

  I'm faced with a pending clean install due to a dying hard drive in my old Dell Inspiron 8600 laptop. I've been running Ubuntu 8.04 on it since... 8.04 and I've been more or less happy with it except that it's a PITA to recompile the kernel or do any other kernel related work. I mostly do software dev on it, gcc, gvim, c/c++/perl/php/mysql and running vmware server 2.0. I've heard mixed reviews of 10.04, and am wondering what to put on the new HD. I'm even considering just sticking with 8.04 as it seems to mostly meet my needs. Any suggestions?

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• Encrypt backups with GPG to multiple tapes

  - by Dan

  Currently, I use tar to write my backups (ntbackup files) to a tape drive fed by an autoloader. Ex: tar -F /root/advancetape -cvf /dev/st0 *.bkf (/root/advancetape just has the logic to advance to the next tape if there is one available or notify to swap the tapes out) I was recently handed the requirement to encrypt our tape backups. I can easily encrypt the data with no problems using GPG. The problem I'm having is how do I write this to multiple tapes with the same logic that tar uses to advance the tapes once the current one is filled? I cannot write the encrypted file to disk first (2+TB). As far as I can tell, tar will not accept binary input from stdin (it's looking for file names). Any ideas? :(

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• How to get the PID of a process started by /bin/su -c

  - by crash3k

  I'm writing a init.d-script for an java-app. But the java-app should be run by another user. (The OS I'm using is Debian Squeeze.) I already got this: /bin/su - $USER - c "cd $PATH;echo $PASSWORD | $JAVA -Xmx256m -jar $PATH/app.jar -d > /dev/null" & PID=$! /bin/su - $USER - c "echo $PID > $PIDFILE" But this will of course only save the pid of the "/bin/su"-process instead of the pid of the created java-process.

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• Windows 7 Boot Loader - Remove 30 second waiting time

  - by derekhh

  I've installed Fedora 17 and Windows 7 on two different hard disks as a dual-boot system. The default boot loader is GRUB 2 maintained and configured in Fedora 17. When I startup and choose "Windows 7 bootloader (on /dev/sda1)" in GRUB 2, Windows 7 boot loader will appear, with only Windows 7 as the only choice and also the default operating system, with a 30 second waiting time if no input is detected. I'm trying to see if it is possible to remove this 30-second waiting time. I've tried to follow the instructions on the Web by configuring default operating system in the control panel but seems there is something wrong with it. I've also tried to use "bcdedit enum /all" but still receives error prompts. Update: Added my boot tab screen in msconfig.

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• Creating a command that compress a file and save it on a usb, but cannot detect the usb in linux.

  - by Lance

  First of all I can't detect the USB on linux using the command line. I check the directory dev and still cannot find the usb. used the df command to check the usb. I plug and typed df and then unplug and typed df again and nothing changed. We are using a server(telnet) to use the command line of linux on a windows 7 OS. The second problem I have is how can I execute the bash script that I have made. It seems that I cant put my .sh file in /usr/bin/ I would like to make my command executable in all directories like a normal command. Sorry, im still newbie at this things. This is what I get on staying on Windows too much. Sorry for my english. Thank you in advance.

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• Authentication in Apache2 with mod_dav_svn

  - by Poita_

  I'm having some trouble setting up authentication in Apache2 for a SVN repository that's being served using mod_dav_svn. Here is my Apache config for the directory: <Location /svn> DAV svn SVNParentPath /var/svn/repos AuthType Basic AuthName "Subversion Repository" AuthUserFile /etc/apache2/dev.passwd Require valid-user </Location> I can use svn with the projects under /var/svn/repos, so I know that the DAV is working, but when I do svn updates or commits (or anything), Apache doesn't ask for any authentication... It does the exact same thing whether the Auth directives are there or not. The permissions on the repository directory (and all subdirectories/files) only give permission to www-data (the Apache2 user/group). I have also ensured that all relevant modules are enabled (in particular mod_auth is enabled, as are all mod_dav* modules). Any ideas why svn commands aren't authenticating? Thanks in advance.

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• Recover data from SD card

  - by Paul Tarjan

  I have a 2GB kingston microSD card which is about 3 years old. I put it in a reader today in my Windows Vista computer, wrote a 32MB file onto it, safely removed it, and then tried to read it elsewhere. Nothing. Putting it back in vista it now says You need to format the disk in drive F: before you can use it. What should I do? I have access to many computers and OSes if your recommendations need that. I would be very sad if I lost all the contents of the card. Most of the data is backed up, but there are a few things that aren't. :( Doing a # dd if=/dev/sdg of=~/tmp/sd.bin gives me a 2 gig file, and grepping the file it seems like lots of my data is still there, how can I put it back together?

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• Git Clone from SSH Repository

  - by Mike Silvis

  I used to be able to clone from my personal git repository but now i seem to be running into an error. user:dev.site.com mikesilvis$ git clone { my ssh directory } server@ipaddress's password: remote: Counting objects: 3622, done. remote: Compressing objects: 100% (2718/2718), done. error: git upload-pack: git-pack-objects died with error. fatal: git upload-pack: aborting due to possible repository corruption on the remote side. remote: aborting due to possible repository corruption on the remote side. fatal: early EOF fatal: index-pack failed It seems to be working however while I push files to the repository.

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• Why using swap file over a SMB/NFS mounted filesystem is not possible in Linux?

  - by Avio

  I'd like to use another machine's unused RAM as swapspace for my primary Linux installation. I was just curious about performance of network ramdisks compared to local (slow) mechanical hard disks. The swapfile is on a tmpfs mountpoint and is shared through samba. However, every time I try to issue: swapon /mnt/ramswap/swapfile I get: swapon: /mnt/ramswap/swapfile: swapon failed: Invalid argument and in dmesg I read: [ 9569.806483] swapon: swapfile has holes I've tried to allocate the swapfile with dd if=/dev/zero of=swapfile bs=1024 (but also =4096 and =1048576) and with truncate -s 2G (both followed by mkswap swapfile) but the result is always the same. In this post (dated back to 2002) someone says that using a swapfile over NFS/SMB is not possible in Linux. Is this statement still valid? And if yes, what is the reason of this choice and is there any workaround to have this working?

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• How to move a partition to the end in gparted?

  - by matnagel

  I can't find a way to move the partition /dev/sdb2 to the end, where 12GB are free http://dl.dropbox.com/u/3358699/permanent/gparted-sdb.png I can resize (expand) the partition, but not create (insert) any free space in front of it. How to do the trick? (There are 2 small black arrows on the top of the popup window in the screenshot at the side of the blue box that represents the 400 GB sdb2 - I can only move the right arrow to the right, which extends the size, but I cannot move the left arrow. When I enter something in the free space preceding box it is always reset to zero by the programm immediateley) I hope I explained this well enough, please feel free to ask for details. This is serious for me as I am expanding a live image. Maybe there is another solution with linux commandline tools ?

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• Running a script at startup as root?

  - by Usman Ajmal

  Hi i developed a script which I set to run at startup i.e. when the Desktop appears. In the script I mounted a partition using sudo mount /dev/sda1 /mnt &> result.txt After executing script a file named result.txt was created which contained sudo: no tty present and no askpass program specified In other words the mounting failed. If I run the script using sudo ./myProgram i don't face this problem and the drive gets mounted successfully. Any suggestions please....

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• Send request body data when running siege

  - by qui

  I am trying to use the command line utility Siege to load test a service. The service recieves json in the request body via a POST. I have a file called example-data.json with the json inside. I will eventually turn this into a tiny service which creates random json for testing, but this should do for now I have another file called hit-qa.siege with http://www.qa-url.com POST < example-data.json and i try and run siege -c10 -d1 -r1 -f ops/perf/hammer-dev.siege When I check the logs of the service, it is not recieving anything in the request body. My googles have been fruitless, does anyone know how to accomplish this?

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• Linux Raid: Can mdadm --grow a raid1 while mounted?

  - by Chris

  I have 2 500gb drives in a RAID1 setup that I needed to upgrade for more space. I mdadm --fail'ed each drive in turn and I used dd to copy each drive to it's respective larger drive (2tb each), removed the smaller drives and replaced them with the larger drives, and reassembled the array and forced a resync. So now I've got a 500gb RAID1 sitting on 2TB drives, and wish to grow them. The plan is to use mdadm --manage /dev/md0 --grow to grow them, then boot a rescue cd, assemble the array under that environment, and do the resize2fs on them. Can I use mdadm --grow on a mounted and live filesystem? Also, do I need more options to make sure the grow operation stays raid1?

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• Applescript won't open applications on my external monitor

  - by jpadvo

  I'm trying to open a new MacVim window with Applescript, and have found partial success with this: do shell script "cd \"~/code/application\"; ~/bin/mvim > /dev/null 2>&1" This works fine, and opens a new MacVim window with it's working directory set to ~/code/application. BUT it always opens on the screen of my laptop, not on the external monitor with the currently active space where I am working. Is there a way to get MacVim to open in the current space? Edit: same problem with opening a finder window: tell application "Finder" to make new Finder window

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• How to set a low process priority for everything spawned from a command prompt in XP?

  - by Binary Worrier

  As a developer, once or twice a week I run a full build on my XP dev machine. This will run at 100% cpu for 30 or 40 minutes, making my machine usless for anything other than basic browsing & email. Is there anyway I can specify that for a given process (i.e. a command prompt) it and any process spawned by it will hae a lower priority, say taking up no more than 60 - 70% of CPU, leaving my machine more usable. I don't mind the build talking 30 or 40% longer, if I still have use of my machine while it's running. Thanks BW P.S. I'd love to be able to throw more hardware at the problem, but that isn't under my control.

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• Improve efficiency when using parallel to read from compressed stream

  - by Yoga

  Is another question extended from the previous one [1] I have a compressed file and stream them to feed into a python program, e.g. bzcat data.bz2 | parallel --no-notice -j16 --pipe python parse.py > result.txt The parse.py can read from stdin continusuoly and print to stdout My ec2 instance is 16 cores but from the top command it is showing 3 to 4 load average only. From the ps, I am seeing a lot of stuffs like.. sh -c 'dd bs=1 count=1 of=/tmp/7D_YxccfY7.chr 2>/dev/null'; I know I can improve using the -a in.txtto improve performance, but with my case I am streaming from bz2 (I cannot exact it since I don't have enought disk space) How to improve the efficiency for my case? [1] Gnu parallel not utilizing all the CPU

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• NGINX - Two different rails apps under same domain

  - by Murkin

  I have two different Rails (passenger) apps that I wan to host on one server: somehost.com/ <-- App #1 somehost.com/admin <--- App #2 Tried playing with the 'location' directive, but failed to have both operate. Can someone suggest the correct approach ? (I would prefer both to share same environment, only launch from different directories) EDIT: Sample (desired) config Trying to do something like: server { listen 80; server_name myhost.com; rails_env production; passenger_enabled on; location / { root /opt/main_site/public/; } location /dev { root /opt/admin_site/public/; } }

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• Install Windows with QEMU

  - by Radium

  I want to understand if it is possible to install Windows from Qemu to a physical HDD. I was trying to do that by doing something like this: qemu-system-x64 -m1024 -vnc :1 -hda /dev/sda -cdrom .../Windows.iso Installed successfully. But when i tried to boot normally got a blue screen telling me that a hardware change appeared so go away. I guess the problem is not because of QEMU-CPU emulation or smth, but because of HDD`s UID change which is used inside of Windows registry. Am i right? So if yes how to workaround this? Maybe i need to prepare Windows before the reboot? I have successfully installed FreeBSD via QEMU and thought with Windows it will go the same ...

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• 2 Nics - Same Subnet..Route backup traffic through one of them

  - by Matthewhall58

  I have a windows server and a centos linux server. I want the nightly backup file (targz) that copies to the windows machine to use a different nic so that the main nic is not burdenend with moving the large file. Each server has 2 Nics in it. the network is 10.173.10.0 mask 255.255.255.192 Centos Linux Box: Eth0 is configured with 10.173.10.80 mask 255.255.255.192 gw 10.173.10.65 Eth 1 is configured with 10.173.10.71 mask 255.255.255.192 gw 10.173.10.65 Windows Box Eth 0 is 10.173.10.72 mask 255.255.255.192 gw 10.173.10.65 Eth 1 is 10.173.10.70 mask 255.255.255.192 gw 10.173.10.65 I can ping each machine from each machine. On the linux machine I use the command route add -host 10.173.10.70 dev eth1 but then when i ping 10.173.10.70 it is unreachable..... WHY?

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• Apache httpd VirtualHost config - multiple sites

  - by DaFoot

  [Advised to post here from StackExchange] I have a site to work on, because of the way the URLs are built the application seems to have been created on the assumption that it will be at the server root (only app). On my dev server I have other projects and up to now a simple symlink has been working for me, but that's not the case now because this new app wants to sit at the route and process all URLs arriving on :80. Hopefully this snippet from httpd.conf will help explain what I'm trying to acheive: # default for any not matched elsewhere <VirtualHost *:80> ServerName localhost DocumentRoot /var/www/html/newproject </VirtualHost> # now try to pick out specific URLs <VirtualHost localhost/webdev> DocumentRoot /var/www/html/existingProject ServerName localhost/project </VirtualHost> Also need to be able to get same affect from wherever I'm accessing the httpd instance from. Hope that makes sense.

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• Hot swap in Ubuntu Server not working

  - by druciferre

  I am running Ubuntu Server 10.04 (lucid lynx), and I just purchased a hot-swap compatible hdd bay and installed it. When I insert a hot-swappable SATA drive, the drive does not show up after running ls /dev/sd?. If I reboot the server, then after it comes back up the drive appears. I have checked /var/log/messages and nothing shows up when I insert the drive, only after rebooting. I have tried the following: $ sudo echo "0 0 0" > /sys/class/scsi_host/host4/scan $ sudo partprobe` $ sudo udevadm trigger Every answer I've found searching Google was one of the things I listed in "I have tried..." and I don't really know what to do at this point. Does anyone know why this occurring?

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