2001-07-09 18:20:51 +00:00
|
|
|
.\" Copyright (c) 2001 Mark R V Murray
|
|
|
|
|
.\" All rights reserved.
|
|
|
|
|
.\"
|
|
|
|
|
.\" Redistribution and use in source and binary forms, with or without
|
|
|
|
|
.\" modification, are permitted provided that the following conditions
|
|
|
|
|
.\" are met:
|
|
|
|
|
.\" 1. Redistributions of source code must retain the above copyright
|
|
|
|
|
.\" notice, this list of conditions and the following disclaimer.
|
|
|
|
|
.\" 2. Redistributions in binary form must reproduce the above copyright
|
|
|
|
|
.\" notice, this list of conditions and the following disclaimer in the
|
|
|
|
|
.\" documentation and/or other materials provided with the distribution.
|
|
|
|
|
.\"
|
|
|
|
|
.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
|
|
|
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
|
|
|
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
|
|
|
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
|
|
|
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
|
|
|
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
|
|
|
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
|
|
|
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
|
|
|
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
|
|
|
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
|
|
|
.\" SUCH DAMAGE.
|
|
|
|
|
.\"
|
|
|
|
|
.\" $FreeBSD$
|
|
|
|
|
.\"
|
|
|
|
|
.Dd July 8, 2001
|
|
|
|
|
.Dt PAM_NOLOGIN 8
|
|
|
|
|
.Os
|
|
|
|
|
.Sh NAME
|
|
|
|
|
.Nm pam_nologin
|
|
|
|
|
.Nd NoLogin PAM module
|
|
|
|
|
.Sh SYNOPSIS
|
|
|
|
|
.Op Ar service-name
|
|
|
|
|
.Ar module-type
|
|
|
|
|
.Ar control-flag
|
|
|
|
|
.Pa pam_nologin
|
|
|
|
|
.Op Ar options
|
|
|
|
|
.Sh DESCRIPTION
|
|
|
|
|
The NoLogin authentication service module for PAM,
|
|
|
|
|
.Nm
|
|
|
|
|
provides functionality for only one PAM category:
|
|
|
|
|
authentication.
|
2001-07-11 08:36:26 +00:00
|
|
|
In terms of the
|
2001-07-09 18:20:51 +00:00
|
|
|
.Ar module-type
|
|
|
|
|
parameter, this is the
|
2001-07-11 08:36:26 +00:00
|
|
|
.Dq Li auth
|
2001-07-09 18:20:51 +00:00
|
|
|
feature.
|
|
|
|
|
It also provides a null function for session management.
|
|
|
|
|
.Ss NoLogin Authentication Module
|
|
|
|
|
The NoLogin authentication component
|
|
|
|
|
.Pq Fn pam_sm_authenticate ,
|
|
|
|
|
always returns success for the superuser,
|
|
|
|
|
and returns success for all other users
|
|
|
|
|
if the file
|
|
|
|
|
.Pa /var/run/nologin
|
|
|
|
|
does not exist.
|
|
|
|
|
If
|
|
|
|
|
.Pa /var/run/nologin
|
|
|
|
|
does exist,
|
|
|
|
|
then its contents are echoed
|
|
|
|
|
to non-superusers
|
|
|
|
|
before failure is returned.
|
|
|
|
|
.Pp
|
|
|
|
|
The following options may be passed to the authentication module:
|
2001-08-15 20:05:33 +00:00
|
|
|
.Bl -tag -width ".Cm no_warn"
|
2001-07-09 18:20:51 +00:00
|
|
|
.It Cm debug
|
|
|
|
|
.Xr syslog 3
|
|
|
|
|
debugging information at
|
|
|
|
|
.Dv LOG_DEBUG
|
|
|
|
|
level.
|
2001-08-15 20:05:33 +00:00
|
|
|
.It Cm no_warn
|
|
|
|
|
suppress warning messages to the user.
|
|
|
|
|
These messages include
|
|
|
|
|
reasons why the user's
|
|
|
|
|
authentication attempt was declined.
|
2001-07-09 18:20:51 +00:00
|
|
|
.El
|
|
|
|
|
.Sh SEE ALSO
|
|
|
|
|
.Xr syslog 3 ,
|
|
|
|
|
.Xr nologin 5 ,
|
|
|
|
|
.Xr pam.conf 5 ,
|
|
|
|
|
.Xr pam 8
|
