sudo & su

albi at albi at
Thu Mar 3 15:04:40 PST 2005

On Thu, 3 Mar 2005 22:47:09 +0000
Pietro Cerutti <pietro.cerutti at> wrote:

> There isn't any NOPASSWD, but if I give the password the first time,
> sudo doesn't ask for it anymore in the next 5 min or so...

see : man sudoers

the timestamp_timeout section

> I think I really misunderstood the purpose of sudo. I thought that it
> was used to automatically login as root, give a command, and log back
> out to user who invoked the command.

more or less, yes

> So what's the purpose of asking for the password of the actually
> logged in user?

with sudo you can allow normal users to do certain things without the
need for sharing the root-password

here are some examples :

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