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Top Forums UNIX for Advanced & Expert Users How to provide root access via sudo with restrictions? Post 303014360 by anuragr on Saturday 10th of March 2018 07:31:22 AM
Old 03-10-2018
How to provide root access via sudo with restrictions?

Hi,
I have a requirement to provide root access but user should not run some specific commands, How it is possible.

following is my configuration at sudoers file,


Code:
Cmnd_Alias MYLIMIT = /usr/bin/passwd /sbin/shutdown /usr/bin/reboot /usr/sbin/visudo /bin/vi /usr/bin/vim
test2 ALL=(ALL)NOPASSWD:  ALL, !MYLIMIT
%wheel ALL = NOPASSWD:ALL, !MYLIMIT

its not working, following is next attempt

Code:
test2 ALL=(ALL)NOPASSWD: !/usr/bin/passwd, !/usr/sbin/visudo  ALL
#OR#
test2 ALL=(ALL)NOPASSWD: ALL, !/usr/bin/passwd, !/usr/sbin/visudo

nothing worked, after all attempts following is result

Code:
[test2@rhel6-server ~]$ sudo su
Last login: Sat Mar 10 17:15:07 IST 2018 on pts/12
[root@rhel6-server test2]# passwd root
Changing password for user root.
New password:
BAD PASSWORD: it is based on a dictionary word
BAD PASSWORD: is too simple
Retype new password:
passwd: all authentication tokens updated successfully.

Please help


Moderator's Comments:
Mod Comment Please use CODE (not ICODE) tags as required by forum rules!

Last edited by RudiC; 03-10-2018 at 08:47 AM.. Reason: Changed CODE tags.
 

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shells(4)							   File Formats 							 shells(4)

NAME
shells - shell database SYNOPSIS
/etc/shells DESCRIPTION
The shells file contains a list of the shells on the system. Applications use this file to determine whether a shell is valid. See getuser- shell(3C). For each shell a single line should be present, consisting of the shell's path, relative to root. A hash mark (#) indicates the beginning of a comment; subsequent characters up to the end of the line are not interpreted by the routines which search the file. Blank lines are also ignored. The following default shells are used by utilities: /bin/bash, /bin/csh, /bin/jsh, /bin/ksh, /bin/ksh93, /bin/pfcsh, /bin/pfksh, /bin/pfsh, /bin/sh, /bin/tcsh, /bin/zsh, /sbin/jsh, /sbin/sh, /usr/bin/bash, /usr/bin/csh, /usr/bin/jsh, /usr/bin/ksh, /usr/bin/ksh93, /usr/bin/pfcsh, /usr/bin/pfksh, /usr/bin/pfsh, and /usr/bin/sh, /usr/bin/tcsh, /usr/bin/zsh, and /usr/sfw/bin/zsh. /etc/shells overrides the default list. Invalid shells in /etc/shells could cause unexpected behavior, such as being unable to log in by way of ftp(1). FILES
/etc/shells list of shells on system SEE ALSO
vipw(1B), ftpd(1M), sendmail(1M), getusershell(3C), aliases(4) SunOS 5.11 20 Nov 2007 shells(4)
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