PAM_ROOTOK

Section: Linux-PAM Manual (8)
Updated: 08/24/2009
Index Return to Main Contents
 

NAME

pam_rootok - Gain only root access  

SYNOPSIS

pam_rootok.so [debug]
 

DESCRIPTION

pam_rootok is a PAM module that authenticates the user if their UID is 0. Applications that are created setuid-root generally retain the UID of the user but run with the authority of an enhanced effective-UID. It is the real UID that is checked.  

OPTIONS

debug

Print debug information.
 

MODULE TYPES PROVIDED

Only the auth type is provided.  

RETURN VALUES

PAM_SUCCESS

The UID is 0.

PAM_AUTH_ERR

The UID is not 0.
 

EXAMPLES

In the case of the su(1) application the historical usage is to permit the superuser to adopt the identity of a lesser user without the use of a password. To obtain this behavior with PAM the following pair of lines are needed for the corresponding entry in the /etc/pam.d/su configuration file: 

# su authentication. Root is granted access by default.
auth  sufficient   pam_rootok.so
auth  required     pam_unix.so

 

SEE ALSO

su(1), pam.conf(5), pam.d(5), pam(7)  

AUTHOR

pam_rootok was written by Andrew G. Morgan, <morgan@kernel.org>.

 

Index

NAME
SYNOPSIS
DESCRIPTION
OPTIONS
MODULE TYPES PROVIDED
RETURN VALUES
EXAMPLES
SEE ALSO
AUTHOR
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Time: 19:49:31 GMT, April 27, 2011