I have installed Apache 2 HTTP server on my file server to host the house website. Everyone that lives here has a sub directory which they can fill with their personal stuff. so to prevent people from seeing whats in those directories i have set up password authentication using a htpasswd file and by adding the necesarry code to the config file in my apache config directory. All the passwords work just fine but the problem is that if my house mates access their directories on a public computer that computer will be able to open that directory for ever. How do i prevent a computer from remembering the password and user name so that every time someone wants to log in they have to log out as well. Can this be done using the config file or do i need to install some software?

Also is there a limit to the number of directories that can be password protected? I have 5 and when i tried to password protect the last folder it didnt take. Anyone have any ideas how that could be?

Thanks in advance.