xref: /freebsd/lib/libpam/modules/pam_tacplus/pam_tacplus.8 (revision fa9896e082a1046ff4fbc75fcba4d18d1f2efc19)

.\" Copyright (c) 1999
.\"	Andrzej Bialecki <abial@FreeBSD.org>.  All rights reserved.
.\"
.\" Copyright (c) 1992, 1993, 1994
.\"	The Regents of the University of California.  All rights reserved.
.\" All rights reserved.
.\"
.\" This code is derived from software donated to Berkeley by
.\" Jan-Simon Pendry.
.\"
.\" 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.
.\" 3. Neither the name of the University nor the names of its contributors
.\"    may be used to endorse or promote products derived from this software
.\"    without specific prior written permission.
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
.\"
.Dd May 17, 2023
.Dt PAM_TACPLUS 8
.Os
.Sh NAME
.Nm pam_tacplus
.Nd TACACS+ authentication PAM module
.Sh SYNOPSIS
.Op Ar service-name
.Ar module-type
.Ar control-flag
.Pa pam_tacplus
.Op Ar options
.Sh DESCRIPTION
The
.Nm
module provides authentication services based
upon the TACACS+ protocol
for the PAM (Pluggable Authentication Module) framework.
.Pp
The
.Nm
module accepts these optional parameters:
.Bl -tag -width ".Cm use_first_pass"
.It Cm use_first_pass
causes
.Nm
to use a previously entered password instead of prompting for a new one.
If no password has been entered then authentication fails.
.It Cm try_first_pass
causes
.Nm
to use a previously entered password, if one is available.
If no
password has been entered,
.Nm
prompts for one as usual.
.It Cm echo_pass
causes echoing to be left on if
.Nm
prompts for a password.
.It Cm conf Ns = Ns Ar pathname
specifies a non-standard location for the TACACS+ client configuration file
(normally located in
.Pa /etc/tacplus.conf ) .
.It Cm template_user Ns = Ns Ar username
specifies a user whose
.Xr passwd 5
entry will be used as a template to create the session environment
if the supplied username does not exist in local password database.
The user
will be authenticated with the supplied username and password, but his
credentials to the system will be presented as the ones for
.Ar username ,
i.e., his login class, home directory, resource limits, etc.\& will be set to ones
defined for
.Ar username .
.Pp
If this option is omitted, and there is no username
in the system databases equal to the supplied one (as determined by call to
.Xr getpwnam 3 ) ,
the authentication will fail.
.El
.Sh FILES
.Bl -tag -width /etc/tacplus.conf -compact
.It Pa /etc/tacplus.conf
The standard TACACS+ client configuration file for
.Nm
.El
.Sh SEE ALSO
.Xr pam 3 ,
.Xr passwd 5 ,
.Xr tacplus.conf 5 ,
.Xr nss_tacplus 8
.Sh HISTORY
The
.Nm
module first appeared in
.Fx 3.1 .
.Sh AUTHORS
.An -nosplit
The
.Nm
manual page was written by
.An Andrzej Bialecki Aq Mt abial@FreeBSD.org
and adapted to TACACS+ from RADIUS by
.An Mark R V Murray Aq Mt markm@FreeBSD.org .
.Pp
The
.Nm
module was written by
.An John D. Polstra Aq Mt jdp@FreeBSD.org .