pam_nologin(8) BSD System Manager's Manual pam_nologin(8)NAME
pam_nologin -- No Login PAM module
[service-name] function-class control-flag pam_nologin [options]
The No Login PAM module supports the account management function class. In terms of the function-class parameter, this is the ``account''
The No Login authentication module always returns success for the superuser, and returns success for all other users if the file /etc/nologin
does not exist. If /etc/nologin does exist, then its contents are echoed to non-superusers before failure is returned.
/etc/nologin A message to denied users.
SEE ALSO nologin(8), pam.conf(5), pam(8), pwpolicy(8)BSD February 7, 2009 BSD
Check Out this Related Man Page
PAM_NOLOGIN(8) Linux-PAM Manual PAM_NOLOGIN(8)NAME
pam_nologin - Prevent non-root users from login
pam_nologin.so [file=/path/nologin] [successok]
pam_nologin is a PAM module that prevents users from logging into the system when /var/run/nologin or /etc/nologin exists. The contents of
the file are displayed to the user. The pam_nologin module has no effect on the root user's ability to log in.
Use this file instead the default /var/run/nologin or /etc/nologin.
Return PAM_SUCCESS if no file exists, the default is PAM_IGNORE.
MODULE TYPES PROVIDED
The auth and acct module types are provided.
The user is not root and /etc/nologin exists, so the user is not permitted to log in.
Memory buffer error.
This is the default return value.
Success: either the user is root or the nologin file does not exist.
User not known to the underlying authentication module.
The suggested usage for /etc/pam.d/login is:
auth required pam_nologin.so
In order to make this module effective, all login methods should be secured by it. It should be used as a required method listed before any
sufficient methods in order to get standard Unix nologin semantics. Note, the use of successok module argument causes the module to return
PAM_SUCCESS and as such would break such a configuration - failing sufficient modules would lead to a successful login because the nologin
SEE ALSO nologin(5), pam.conf(5), pam.d(5), pam(8)AUTHOR
pam_nologin was written by Michael K. Johnson <firstname.lastname@example.org>.
Linux-PAM Manual 09/19/2013 PAM_NOLOGIN(8)
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