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 SERVICES PROVIDED
Only the
auth
service is supported.
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(8),
pam(8)
AUTHOR
pam_rootok was written by Andrew G. Morgan, <morgan@kernel.org>.
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