In previous versions of Ubuntu, I was able to fine-tune user privileges easily via a tool. However, the present version apparently only allows two levels: standard or administrator. How do I e.g. give a standard user rights to connect to wireless networks?
in a terminal). This will install the 'old' users and groups tool.
To run it, search for 'admin' or 'user' in the Unity dash and choose "Users and Groups". Alternatively, you can run 'users-admin' in a terminal.