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6.23. pam_nologin - prevent non-root users from login
6.23. pam_nologin - prevent non-root users from login
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6.23. pam_nologin - prevent non-root users from login

pam_nologin.so [ file=/path/nologin ] [ successok ]

6.23.1. DESCRIPTION

pam_nologin is a PAM module that prevents users from logging into the system when /etc/nologin exists. The contents of the /etc/nologin file are displayed to the user. The pam_nologin module has no effect on the root user's ability to log in.

6.23.2. OPTIONS

file=/path/nologin

Use this file instead the default /etc/nologin.

successok

Return PAM_SUCCESS if no file exists, the default is PAM_IGNORE.

6.23.3. MODULE TYPES PROVIDED

The auth and acct module types are provided.

6.23.4. RETURN VALUES

PAM_AUTH_ERR

The user is not root and /etc/nologin exists, so the user is not permitted to log in.

PAM_BUF_ERR

Memory buffer error.

PAM_IGNORE

This is the default return value.

PAM_SUCCESS

Success: either the user is root or the /etc/nologin file does not exist.

PAM_USER_UNKNOWN

User not known to the underlying authentication module.

6.23.5. EXAMPLES

The suggested usage for /etc/pam.d/login is: 

auth  required  pam_nologin.so

6.23.6. AUTHOR

pam_nologin was written by Michael K. Johnson <johnsonm@redhat.com>.

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6.22. pam_namespace - setup a private namespace Home 6.24. pam_permit - the promiscuous module