I created a user account on Ubuntu for my 8 year-old son, and I would like to let him use it freely, except for Internet.
How to make that:
- once logged on his account, Internet is disabled by default
- I can sometimes manually enable Internet on his account with a simple command or GUI button, with a password that I keep secret
- then, when his session is logged off or computer rebooted, Internet is disabled by default automatically again
I have found solutions with
iptables here and in some other places, but:
I think that this does not allow 2. and 3. easily
also I was looking for something available from the GUI.
Is there anything like this built-in?