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Query related to sudo?

Hello Guys,
I have Ubuntu 8.10 running on my HP Proliant. I have created a user with name "tux" during the installation.Whenever I need to perform any action I just provide :

Code:

$ sudo /etc/init.d/networking restart

This ask me for password and it goes fine.

Now I have created a user called joe. Now when i perform any operation it says:

Code:



$ pwd

/home/joe

$ sudo fdisk -l

[sudo] password for joe:

joe is not in the sudoers file.  This incident will be reported.

Now I know that we need make entry for joe in sudoers. I cant give him root permission as:

Code:

root ALL=(ALL) ALL

I cant write :
joe ALL=(ALL) ALL

I have been using Red Hat for long time. Just want to know what exact entry I should make for this user if I want to give him specific permission.

Go to System/Administration/Users_And_Groups and hit the Unlock button as tux, enter tux password. Tux belongs to the admin group. Here you can add a new user, this may be where you may have added joe. Highlight joe and hit properties/user_priviledges and put a check in the box next to "Administer system".
Although I have not tried this, you probably do not have to add anything in /etc/sudoers for joe as there is already an entry for those belonging to the admin group.

Also, to edit the /etc/sudoers file, issue command:$ sudo visudo

To only allow this new user certain privileges instead of admin powers, look at section "Only allowing a user to run a particular command" in this howto --> http://www.wlug.org.nz/SudoHowto