Urgent!!! Permission problem - can't find a decent solution :O

[zja]

"On a default Ubuntu system, any task which requires root (or Administrator) privileges runs a program called 'sudo' (or it's graphical equivalent, gksu) to run a helper program in a privileged mode. By default, for security reasons, this program will ask you to input your password. If you make a lot of settings changes on your system (or need to run a lot of programs as root), each password prompt can get rather annoying." (http://www.ubuntutips.net/node/21)

that's EXACTLY what I just LOST today. now my system asks rarely for my password even when I getting in to Root Terminal [gksu /usr/bin/x-terminal-emulator] this is VERY disturbing >

how that happened?
I messed a bit with System > Administration > Login Window and I ONLY changed the themes under the Local tab & under the Accessibility tab I picked 2 other sounds (which didn't worked at all) for Login successful and Login failed. that's all

as for now, at this very moment, the system DID asked for password for System > Administration > Login Window and Root Terminal.

please help. how can I control the system's password request (the more it asks the better)

thanks in advanced!

[cdenley]

By default, once sudo is used, you don't need to enter your password again in that terminal for 15 minutes.

sudo EDITOR=gedit visudo

change this line, adding the bold red text...

Defaults env_reset,timestamp_timeout=0

...then save and close.
That should always require a password. If not, run this command

sudo -K

That clears out existing timestamps. For more information

man sudoers
man sudo

[The Cog]

Just to explain teh mail above - sudo normally remembers that you gave a password, and won't bother the same terminal for another password prompt within a 15 minute timeout. This is to prevent the password prompt getting really, REALLY annoying.