Really very nice tutorial, I would like to know if there is a way to exclude some admin to run any configuration in ssh?

I am facing one problem with /etc/sudoers or visudo, Actually, While I am adding a user with adduser command and while I am not providing any sudo access but commands are working without password or without any permission error.

I am using e.g: Lucky ALL=(Lucky) NOPASSWD: /bin/*, !/bin/rm.

and also I am restricting for rm command but rm command is working.

Please help me brother and please clarify my doubts.

I do understand the confusion in this regard, especially with younger users, as Ubuntu started this confusion by misusing sudo to give it a more Windows like admin configuration model for individual admin tasks as it utterly lacks any unified administration interface where you’d give the root password once to enter and configure the system.

So for example, as an administrator of my system, I keep a terminal shell open in which I’ve su’d to root and use that shell for all admin tasks.

If I wanted to allow other users of the system to have access to network configuration or printer setup, I’d use sudo to allow access to those tools.

try with pater# sudo -u tom any_sytem_command

you may find more examples from below link
http://www.linuxhomenetworking.com/wiki/index.php/Quick_HOWTO_:_Ch09_:_Linux_Users_and_Sudo#.V4H6__l97IV

Good evening.

I have a doubt in the below line.
mark beta.database_server.com=(tom) ALL

My understanding is ‘mark’ and ‘tom’ both are the sudo users, both users have same (ALL commands )access on beta.database_server.com machine.

Is this correct? or any difference is there in between ‘mark’ and ‘tom’ users in terms of privileges on beta.database_server.com machine?

Thanks in advance.

Thanks