[sudo-users] "user is not allowed to run sudo on localhost."

[Bob Proulx]

Philippe Froidevaux wrote:
> it works only with :
> user1 localhost = ALL
> [...]
> I seems that 'sudo' identify the local host only as
> 'localhost', and not with its real-life hostname.

What is the hostname of these hosts?

  hostname

> The real hostname is given in both /etc/hostname and in /etc/hosts.

If /etc/hostname is correct then at boot time /etc/init.d/hostname.sh
will run 'hostname --file /etc/hostname' to set the hostname from it.
But if you have changed it and not yet rebooted then it might not be
in sync with the current contents of the files.

Bob