Интерактивная система просмотра системных руководств (man-ов)
pam_securetty (8)
pam_securetty (8) ( FreeBSD man: Команды системного администрирования )
>> pam_securetty (8) ( Linux man: Команды системного администрирования )
NAME
pam_securetty - Limit root login to special devices
SYNOPSIS
pam_securetty.so [debug]
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.
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.
OPTIONS
debug
Print debug information.
MODULE SERVICES PROVIDED
Only the
auth
service is supported.
RETURN VALUES
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_IGNORE
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.