gnome-ppp (za gnome2) spreman za download i testiranje :)

########## Code Listing 9.2: /etc/sudoers ###########################
# sudoers file.
#
# This file MUST be edited with the 'visudo' command as root.
#
# See the sudoers man page for the details on how to write a sudoers file.
#

# User alias specification
User_Alias HELPDESK = jfox, helpdesk
User_Alias SYSADMINS = david, jc

# Cmnd alias specification
# Create aliases for all commands used in viewing files
Cmnd_Alias VIEW = /bin/cat, /bin/grep, /bin/more, /usr/bin/head, \
/usr/bin/tail, /usr/bin/less

# commands for user administration
Cmnd_Alias USERADMIN = /usr/sbin/useradd, /usr/sbin/userdel, \
/usr/sbin/usermod

# User privilege specification
# Allow SYSADMINS to run any command as any user
SYSADMINS ALL = ALL

# Allow users in HELPDESK to use the user administration commands and
# to use the VIEW commands without a password
HELPDESK ALL = USERADMIN, NOPASSWD:VIEW

# Allow users in the %users group to use the VIEW commands
%users ALL = VIEW

Now that your /etc/sudoers file has been created, you can issue commands using sudo command.

Code Listing 9.3: Examples

(Viewing /var/log/critical/current as the helpdesk user)
helpdesk@mybox% sudo tail /var/log/critical/current

(Adding a new user as the user jfox)
jfox@mybox% sudo useradd marcus
Password: password for jfox