NAME
pam_nologin - Prevent non-root users from login
SYNOPSIS
pam_nologin.so [file=/path/nologin] [successok]
DESCRIPTION
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.
OPTIONS
file=/path/nologin
successok
MODULE TYPES PROVIDED
The auth and account module types are provided.
RETURN VALUES
PAM_AUTH_ERR
PAM_BUF_ERR
PAM_IGNORE
PAM_SUCCESS
PAM_USER_UNKNOWN
EXAMPLES
The suggested usage for /etc/pam.d/login is:
auth required pam_nologin.so
\nNOTES
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 module succeeded.
SEE ALSO
nologin(5), pam.conf(5), pam.d(5), pam(7)
AUTHOR
pam_nologin was written by Michael K. Johnson <[email protected]>.