ограничьте вход в систему root на специальные устройства (Limit root login to special devices)
Имя (Name)
pam_securetty - Limit root login to special devices
Синопсис (Synopsis)
pam_securetty.so [debug]
Описание (Description)
pam_securetty is a PAM module that allows root logins only if the
user is logging in on a "secure" tty, as defined by the listing
in /etc/securetty. pam_securetty also checks to make sure that
/etc/securetty is a plain file and not world writable. It will
also allow root logins on the tty specified with console= switch
on the kernel command line and on ttys from the
/sys/class/tty/console/active.
This module has no effect on non-root users and requires that the
application fills in the PAM_TTY item correctly.
For canonical usage, should be listed as a required
authentication method before any sufficient authentication
methods.
Параметры (Options)
debug
Print debug information.
noconsole
Do not automatically allow root logins on the kernel console
device, as specified on the kernel command line or by the sys
file, if it is not also specified in the /etc/securetty file.
Предоставляемые типы модулей (Module types provided)
Only the auth module type is provided.
Возвращаемое значение (Return value)
PAM_SUCCESS
The user is allowed to continue authentication. Either the
user is not root, or the root user is trying to log in on an
acceptable device.
PAM_AUTH_ERR
Authentication is rejected. Either root is attempting to log
in via an unacceptable device, or the /etc/securetty file is
world writable or not a normal file.
PAM_INCOMPLETE
An application error occurred. pam_securetty was not able to
get information it required from the application that called
it.
PAM_SERVICE_ERR
An error occurred while the module was determining the user's
name or tty, or the module could not open /etc/securetty.
PAM_USER_UNKNOWN
The module could not find the user name in the /etc/passwd
file to verify whether the user had a UID of 0. Therefore,
the results of running this module are ignored.
Примеры (Examples)
auth required pam_securetty.so
auth required pam_unix.so
Смотри также (See also)
securetty(5), pam.conf(5), pam.d(5), pam(8)
