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I found lot of documents to disable the USB ports but all systems in lab are having administrator user,if I disable usb ports using administrator account,someone can easily enable by giving sudo modprobe usb_storage,So I want to prevent this,is there any other way to disable usb ports by using SuperUser account ?

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This shouldn't be possible. The superuser has access to all settings and therefore can rollback any measures placed to prevent that. You are better off cloning the superuser's settings into a new account. –  nickguletskii Nov 17 '12 at 6:03
    
cloning technique will work without any trouble ? –  Yashwant Nov 17 '12 at 6:15
    
Probably will... Just be careful. Relevant question: askubuntu.com/questions/100252/cant-clone-a-user-profile –  nickguletskii Nov 17 '12 at 6:44
    
You can try removing the accounts from the sudoers group. Though they would no longer be administrator. –  VedVals Nov 17 '12 at 8:02
    
Is there any other method to implement this ? –  Yashwant Nov 17 '12 at 11:42
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