I need to prevent/restrict  standard users from accessing directory like bin,boot,dev,etc,lib,media?
19924
I am working on a small project. I have about 20 computers with Ubuntu 10.04 on them, which will be used in a computer lab for elementary, middle, high school and college kids. Some seniors and new computer-users will be using the computers.  I want to lock-down the computers for so children and people who want to play around with PC configuration can use them securely and without breaking them.  I therefore want to restrict user privileges, removing the ability to upgrade, add/install software or otherwise personalize the lab's computers.  The only uses for these computers should be:    access to school websites for access of e-text books (homework assignments)  access to learning-aid websites(such as www.math.com or webster.com)  access/restrictions to applications that are safe and appropriate for the elementary students.  For more senior users only, access to websites for completing applications for re-certifications of say food stamps, medicaid and so on.   Are there any software packages that will let me do this?
114374
How can I disable a user account from the command line?  In Windows XP or 7.
86033
I want to give a Fedora user sudo privileges. How do I do that?
58871
I want to limit access to running apps with a password. Is that possible? I have an app in the tray icon and I want to close it for unauthorized access.  Greetings
13155
I want to create a new user to run a service on the system but don't want to have /home and other configuration files for it. Like there is a user for postgres but it doesn't have any /home directory.
11086
How can I access (remove to be specific) files from my external hard drive which is already mounted using terminal?
49777
I just added a new, underprivileged "desktop user," and I was surprised to discover that it can see the files in my home folder.  What is the rational for setting up such lax permissions?
113320
I am working on a website where there will be users publishing contents.  How can I restrict users from accessing other users' contents and only able to view, edit or delete their own contents?
56744
How to block certain applications from opening on certain accounts (eg: Stop account John from opening Firefox or Gimp). It is assumed this is for the GUI and not the terminal and would only apply to specific users, so for example user X can open Gimp but not Firefox, user Z can open Software Center but not VirtualBox.  What good and easy way is there to do this for a new user of Ubuntu.
90772
Is it possible to run a command without elevated privileges from batch file that was run with elevated privileges?
100440
Not that it's a very good idea to change it, but for fun. According to  post, there are still some problems even after changing entries in /etc/passwd, /etc/shadow, and /etc/sudoers. Any suggestions?
27539
Is it possible to block the (outgoing) network access of a single process?
53147
I don't need an administrator to change my root password. I don't want any sudo user to execute this command:  sudo passwd $root   I have tried it in the sudoers file using the following command:  %sudo ALL=(ALL) ALL, !/usr/bin/passwd $root   How can I block it?
96276
I have tried:  sudo "some string" &gt;&gt; test.txt   But I am getting permission denied warning.  Can anyone help?
82762
I have multiple users on my home desktop. I am content with most of the default user directories, however I would like to make one change.  I would like to setup a common directory for Music (ie /home/common/Music/) that is writable to all users and Nautilus/Dolphin/whatever recognizes as the user's Music directory.  I know that it would involve changing the xdg user directory setup, but everything I see points that it is relative to the user's $HOME.  Is there a way I can specify an absolute path?
120477
When deleting certain files from the Program Files directory using the Administrator account, I got the following pop-up:     How should I work around this? Why am I asked to require permission from "TrustedInstaller", despite using an Administrator's account?
63988
Does using  prevent my Internet Service Provider or system administrator from seeing what websites I visit?