administrative programs ask for user password?
i'm a first time ubuntu user (all time suse).
i wonder, why that everytime i want to configure network,
or synaptic, or other "administrative" settings, it asks
me for my user password, and not for root password?
i've typed sudo passwd root, and change the root password
from the user password to root's own password, but the
program keep asking me user password. i'm affraid that
other users will be able to break the system.