12.04 cached authentication?

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Anonymous (not verified)
12.04 cached authentication?

Hi, first this is a wonderful kiosk solution!

I have an authentication process for users...they obtain a voucher code and enter this to obtain access to the web. This authentication is done via a Linksys router.

It seems that the kiosk may be caching the authentication...that is, once I have entered a correct voucher code, the internet continues to work for any other subsequent connections, despite hitting the 'logout' button.

Is there some caching going on that I can look at locking down?