I am running Ubuntu 10.04 LTS. I want to use my laptop to play music in a party. MY screensaver does not need a password to deactivate. I would like to allow people to use my computer to play the music they like, but I would like to prevent them to have access to certain directories in the same manner or similar that linux prevents people unauthorized to install programs from the synaptic package manager.
I would like this to be at the level of the command line and the file browser. But with the root password to be able to have access.
Is this done by changing the permissions of the directory? If so how, which is the command from the terminal? Will that also prevent people from executing the files in the directory as well? Can I also block their searching of the directory and contents?