1PAM_ROOTOK(8) Linux-PAM Manual PAM_ROOTOK(8)
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6 pam_rootok - Gain only root access
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9 pam_rootok.so [debug]
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12 pam_rootok is a PAM module that authenticates the user if their UID is
13 0. Applications that are created setuid-root generally retain the UID
14 of the user but run with the authority of an enhanced effective-UID. It
15 is the real UID that is checked.
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18 debug
19 Print debug information.
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22 The auth, account and password module types are provided.
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25 PAM_SUCCESS
26 The UID is 0.
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28 PAM_AUTH_ERR
29 The UID is not 0.
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32 In the case of the su(1) application the historical usage is to permit
33 the superuser to adopt the identity of a lesser user without the use of
34 a password. To obtain this behavior with PAM the following pair of
35 lines are needed for the corresponding entry in the /etc/pam.d/su
36 configuration file:
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38 # su authentication. Root is granted access by default.
39 auth sufficient pam_rootok.so
40 auth required pam_unix.so
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45 su(1), pam.conf(5), pam.d(5), pam(8)
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48 pam_rootok was written by Andrew G. Morgan, <morgan@kernel.org>.
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52Linux-PAM Manual 11/25/2020 PAM_ROOTOK(8)