topic Re: Creating a sudo user in RHAS 2.1 in Operating System - Linux

Creating a sudo user in RHAS 2.1

Jorge Cocomess — Mon, 16 Jul 2007 10:37:26 GMT

Greetings,

I would like to know how to setup a user with sudo account. I would like to give this user the option to change the permission on a file from time to time.

I will try to do everything before giving up the root password.

Again, we're currently using RHAS 2.1.

Thank you in advance.

Jorge

Re: Creating a sudo user in RHAS 2.1

Court Campbell — Mon, 16 Jul 2007 10:48:07 GMT

install sudo if it is not already installed. then run visudo as root. and add something like this

username ALL = /bin/chmod /path/to/file NOPASSWD: ALL

This will allow the user to run chmod on the file as root. The NOPASSWD will not prompt the user for the users password. If you omit that the user will be prompted for the users password.

Re: Creating a sudo user in RHAS 2.1

Ivan Ferreira — Mon, 16 Jul 2007 11:21:44 GMT

Disagree, if you add that line:

username ALL = /bin/chmod /path/to/file NOPASSWD: ALL

You will be giving the possibility to user "username" to run ALL commands as root. The format of the file is:

USER HOSTS = [(RUN_AS_USER)] [NOPASSWD:] LIST_OF_COMMANDS

For example, using visudo add:

user01 ALL = NOPASSWD: /bin/chmod /path/to/file

Re: Creating a sudo user in RHAS 2.1

Court Campbell — Mon, 16 Jul 2007 11:35:01 GMT

Ivan,

You are correct. i still get confused with the order in the sudoers file.

Re: Creating a sudo user in RHAS 2.1

Jorge Cocomess — Mon, 16 Jul 2007 13:23:53 GMT

I just need to know where I should add this user-name in the sudo script.

Thank you everyone.

Jorge

Re: Creating a sudo user in RHAS 2.1

Court Campbell — Mon, 16 Jul 2007 13:32:02 GMT

just add it to the end of the file.

Re: Creating a sudo user in RHAS 2.1

Jorge Cocomess — Mon, 16 Jul 2007 14:38:26 GMT

Okay, I added this line to the end of the sudoers script.
user01 ALL = NOPASSWD: /bin/chmod /path/to/file

Is there anything else I will need to do before I test out by logging as this user??

Thanks so much for your help.

Jorge

Re: Creating a sudo user in RHAS 2.1

Court Campbell — Mon, 16 Jul 2007 14:42:56 GMT

Hopefully you did not actually add this exact statement.

user01 ALL = NOPASSWD: /bin/chmod /path/to/file

You need to pull the path to a real file.

Ej.

user01 ALL = NOPASSWD: /bin/chmod /data/eng/eng_group_file.out

Otherwise you are good to go.

Re: Creating a sudo user in RHAS 2.1

Court Campbell — Mon, 16 Jul 2007 14:43:09 GMT

Hopefully you did not actually add this exact statement.

user01 ALL = NOPASSWD: /bin/chmod /path/to/file

You need to put the path to a real file.

Ej.

user01 ALL = NOPASSWD: /bin/chmod /data/eng/eng_group_file.out

Otherwise you are good to go.

Re: Creating a sudo user in RHAS 2.1

Jorge Cocomess — Mon, 16 Jul 2007 14:47:47 GMT

No, that exactly like that. I still have have a permission issue when I tried to do a chmod.

Any ideas?

Jorge

Re: Creating a sudo user in RHAS 2.1

Court Campbell — Mon, 16 Jul 2007 16:22:51 GMT

What is the issue? can you post the output?

Re: Creating a sudo user in RHAS 2.1

Jorge Cocomess — Mon, 16 Jul 2007 17:11:26 GMT

I was getting a message stating, "chmod: changing permission of 'test.txt' : operation not permitted"

Jorge

Re: Creating a sudo user in RHAS 2.1

Court Campbell — Mon, 16 Jul 2007 19:00:41 GMT

as the user did you do the following

# sudo chmod 755 /data/test.txt

the user will need to type the word sudo before the command and arguments.

Re: Creating a sudo user in RHAS 2.1

Jorge Cocomess — Mon, 16 Jul 2007 23:30:29 GMT

Oh no, I did not submit the sudo command before using. let me try it again and let you know.

Thanks so much.

Jorge

Re: Creating a sudo user in RHAS 2.1

Court Campbell — Tue, 17 Jul 2007 10:40:46 GMT

Is this resolved?

Re: Creating a sudo user in RHAS 2.1

Jorge Cocomess — Wed, 18 Jul 2007 11:02:38 GMT

Sorry, but I was totally tied up with other operational issues yesterday.

Anyways, this is an error message that I received, "We trust you have received the usual lecture from the local system administrator. It usually boils down to these two things:
1. Respect the privacy of others.
2. Think before you type.

Password:

Re: Creating a sudo user in RHAS 2.1

Jorge Cocomess — Wed, 18 Jul 2007 11:03:39 GMT

Re: Creating a sudo user in RHAS 2.1

Court Campbell — Wed, 18 Jul 2007 15:39:56 GMT

seems like something is wrong with the entry in the sudoers file. Can you please post the line that you added.

Re: Creating a sudo user in RHAS 2.1

skt_skt — Wed, 18 Jul 2007 15:51:13 GMT

uid ALL=(root) NOPASSWD: scriptname

try this way.it should work

Re: Creating a sudo user in RHAS 2.1

Jorge Cocomess — Wed, 18 Jul 2007 18:15:36 GMT

Should I use the actual user_name (test1) or should I be using the UID?? Does the NOPASSWD should be in caps or lowercase characters?

Thanks,
Jorge