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• Block a user from accessing internet on Linux

  - by santhosh

  How do I block a user from accessing the internet under Linux? I'm trying the following: iptables -A OUTPUT -p tcp --dport 80,443 -m owner --uid-owner $USERNAME -j DROP Is that the right syntax or command?

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• Playing HD video accelerated by GPU? (Linux)

  - by data_jepp

  I know that this laptop (Asus UL30A) does support playing HD material with the help of the GPU on windows. The question is how can I do this under linux? The CPU load as is implies that this is not activated. I assume that it's limited to a handful of codecs. But which player supports this, if its even supported at all?

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• "Error occurred during initialization of VM" in linux server

  - by Khoyendra Pande

  I am trying to run java command in linux server it was running well but today when I tried to run java I got some error- Error occurred during initialization of VM Could not reserve enough space for object heap Could not create the Java virtual machine. my memory space is - root@vps [~]# free -m total used free shared buffers cached Mem: 8192 226 7965 0 0 0 -/+ buffers/cache: 226 7965 Swap: 0 0 0 How can I solve this problem.

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• Best Secure Encryption for Zip Files via Linux

  - by Daniel

  I want to use highly secure encryption for zipped files via Linux/Ubuntu using a command line terminal, what is the best command line tool to get this job done? zip -e -P PASSWORD file1 file2 file3 file4 Or 7za a file.7z *.txt -pSECRET What encryption is used and how secure is it?

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• linux command line: find a host's canonical hostname

  - by flybywire

  what is the easiest way to get a host's canonical host name from linux's command line? If it matters, my shell is bash.

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• Best linux backup software that is most like Time Machine

  - by Mr. Man

  What is the best linux backup tool that is most like Time Machine that ships on Macs? The one thing that I want it to have that is like Time Machine is that it only backs up file's that have been changed, therefore making for faster backups. Thanks in advance!

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• Celery and Django : How to start at boot in production env (linux)

  - by llazzaro

  Hello, I have and app that uses celery and django to run distribuited tasks (like send email, crawl web,etc). The app never wa sin prod, so I always start celeryd with ./manage celeryd. I want to setup a pre-post env in linux, and I will need information in how to make an init.d script for start the celeryd for django. (I had made some init.d scripts before, no need complete script just relevant part) Thanks!

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• Firefox Linux/Gnome: remove down arrow from folders in personal toolbar

  - by kemp

  In linux version of firefox (specifically in my case Debian's rebranded Iceweasel), folders of bookmarks in the personal toolbar show a little down arrow on the right of the name. It serves no real purpouse and just takes up horizontal space, is there a way to remove it?

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• How can I choose between Linux and Windows hosting?

  - by Mohamad

  I am a relative beginner when it comes to choosing web servers and hosting plans. I'm about to signup for a hosting plan with GoDaddy. My main requirement is ColdFusion and MySQL. The plans on offer include Linux and Windows based plans. Which one should I choose, and why? I don't have a lot of requirements other than what I mentioned above. I never used Linux before but I doubt I'll ever need to do anything beyond tampering with my account. What are the main advantages of one over the other?

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• Mint Linux - Downgrade Java to 1.5

  - by Chrisc

  Hello, I posted this over at stack overflow, but had a suggestion to post it here for better help. Currently, I am running Mint Linux (Release 9). I need to downgrade Java from version 1.6 to 1.5, and have been trying to figure out how to go about this. So far, I've had no luck. The package manager doesn't seem to have it. Does anyone have any suggestions? Thanks, - Chris

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• renaming files in linux

  - by timmy

  How would I rename a file say old.txt to new.txt in Linux using commands? would it be...? rename old.txt new.txt

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• Linux ncurses outliner options

  - by geek

  I'm looking for a replacement for hnb, which served me well but seems to be abandoned. Please do not suggest text-editor based approaches like emacs org mode or vim outliner. I want a stand-alone tool, preferably written in Python, with ncurses interface (so it could run on Linux with no X server).

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• How to generate a fake load on linux server for testing oracle R12 application

  - by Muahmmad Zeeshan

  Hi, I want to know how to generate a fake load on linux server for testing purpose. We have to get a new server. Before finalizing it we have to test it by generating a fake load so that it can fulfill our future needs. Is there any software or utility for this purpose. Thank You regards

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• Windows 7 won't boot after Ubuntu Linux Install

  - by pierre-julien.bringer.2008

  I installed Ubuntu on a free partion on a computer which had Windows 7 installed first, and Windows 7 won't boot. Usually installing linux after windows is recommended, but Windows 7 complains about there being a problem with its boot process. How do I repair Windows 7 to boot correctly while maintaining grub to boot Ubuntu?

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• Restricting directory access for a user in linux

  - by Harun Baris Bulut

  Hi all, How can I restrict user to read other users directory in linux ? for instance I have user1 and user2, I dont want the user2 to read /home/user1/... How can I do this ? Thanks

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• how to recover a removed file under linux

  - by HaiYuan Zhang

  by accident, I "rm" a file. Is there any way that I can get it back under linux? thanks in advance.

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• Make a bootable usb to install Windows XP from Linux

  - by Pablo Rosales

  I have a Dell Mini 9 with only Ubuntu installed, I want to install Windows XP also but I don't have and can't get an external CD drive, so I need to make a windows installation from the usb. All the tutorials I found use windows to make the usb bootable, how can I make the same from linux?

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• Installing oracle Enterprise linux

  - by Muahmmad Zeeshan

  Hi, Following link contains the steps for installing oracle enterprise linux. Please advice are these steps are correct? http://insidetheoracle.blogspot.com/

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• Advantages of Re-Compiling of Linux Kernels: Share your Ideas

  - by krishnanunni

  hello open xperts can you give me some advantages of Recompilation of New Linux Kernel and Installations. make xconfig modules modules_install install this is what i`m talking on. can someone provide me the basic needs and Advantages?.. Thanks for helping me

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• Decrypting and reading a FileVault sparsebundle in Linux?

  - by Eemeli Kantola

  Hi, My MacBook's HD started failing recently. Fortunately most of the data was properly backed up and most of the other important data could be retrieved by hooking up the drive with the help of an external USB enclosure, but the problem is that my home directory has been encrypted with FileVault and I currently don't have easy access to a Mac. So can the FileVault sparsebundle be somehow decrypted and read with Linux?

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• Live Linux CD for burn-in with Bonnie++?

  - by user13743

  Is there a live linux distro that I can use for burn-in? I'd like something that has Bonnie++ on it. I've found other live CD that has utilities, but nothing with bonnie++ on it.

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• Anti Virus automatic update problem with linux squid proxy

  - by Kumar P

  I am using RHEL 5 linux server with 10 Windows XP client machines, I installed bit defender internet security 2009 in my windows machines, My Problem is automatic updates are not performing, I get following error I can't find what i want to do changes in my proxy. I am using squid 2.6 stable When i use Norton , get same error. What i want to do, for update it ?

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• Multiple Java environment on the same Linux machine

  - by jldupont

  What's is the most efficient way to install multiple Java JDK versions on the same Linux machine? I need Java5 whilst my current Ubuntu 9.10 Karmic comes loaded with Java6. I know I could setup a VM for this but I am looking for alternatives.

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• assign public domain on linux

  - by juanefren

  I have all my domains parked with Godaddy registrar, and now I have aquired a small dedicated server to migrate all my sites. How do I park my domains in the new site? The server is a Red Hat Enterprise Linux Box with Apache and Nginx running. The only way to access the server right now it's via IP address.

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• How to find the IP of the DHCP server - Red Hat Linux

  - by Nishant

  There seems to be some other DHCP server installing my linux machine on the same network . How do I check the IP and remove the same ?

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