Binary package “nanny” in ubuntu precise

Parental Control System

 An easy way to control what your kids are doing in the computer.
 You can limit how much time a day each one of them is browsing the web,
 chatting or doing email. You can decide at which times of the day the
 can do this things as well. Nanny filters what web pages are seen
 by each user, so you can block all undesirable webs and have your kids
 enjoy the internet with ease of mind, no more worries!