запретить пользователям без полномочий root входить в систему (Prevent non-root users from login)
Имя (Name)
pam_nologin - Prevent non-root users from login
Синопсис (Synopsis)
pam_nologin.so [file=/path/nologin] [successok]
Описание (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.
Параметры (Options)
file=/path/nologin
Use this file instead the default /var/run/nologin or
/etc/nologin.
successok
Return PAM_SUCCESS if no file exists, the default is
PAM_IGNORE.
Предоставляемые типы модулей (Module types provided)
The auth and acct module types are provided.
Возвращаемое значение (Return value)
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 nologin file does not
exist.
PAM_USER_UNKNOWN
User not known to the underlying authentication module.
Примеры (Examples)
The suggested usage for /etc/pam.d/login is:
auth required pam_nologin.so
Примечание (Note)
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.
Смотри также (See also)
nologin(5), pam.conf(5), pam.d(5), pam(8)
