1.\" Copyright (c) 2001 Mark R V Murray 2.\" All rights reserved. 3.\" Copyright (c) 2002 Networks Associates Technology, Inc. 4.\" All rights reserved. 5.\" 6.\" Portions of this software were developed for the FreeBSD Project by 7.\" ThinkSec AS and NAI Labs, the Security Research Division of Network 8.\" Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035 9.\" ("CBOSS"), as part of the DARPA CHATS research program. 10.\" 11.\" Redistribution and use in source and binary forms, with or without 12.\" modification, are permitted provided that the following conditions 13.\" are met: 14.\" 1. Redistributions of source code must retain the above copyright 15.\" notice, this list of conditions and the following disclaimer. 16.\" 2. Redistributions in binary form must reproduce the above copyright 17.\" notice, this list of conditions and the following disclaimer in the 18.\" documentation and/or other materials provided with the distribution. 19.\" 3. The name of the author may not be used to endorse or promote 20.\" products derived from this software without specific prior written 21.\" permission. 22.\" 23.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 24.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 27.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33.\" SUCH DAMAGE. 34.\" 35.Dd July 8, 2001 36.Dt PAM_SECURETTY 8 37.Os 38.Sh NAME 39.Nm pam_securetty 40.Nd SecureTTY PAM module 41.Sh SYNOPSIS 42.Op Ar service-name 43.Ar module-type 44.Ar control-flag 45.Pa pam_securetty 46.Op Ar options 47.Sh DESCRIPTION 48The SecureTTY service module for PAM, 49.Nm 50provides functionality for only one PAM category: 51account management. 52In terms of the 53.Ar module-type 54parameter, this is the 55.Dq Li account 56feature. 57It also provides null functions for authentication and session 58management. 59.Ss SecureTTY Account Management Module 60The SecureTTY account management component 61.Pq Fn pam_sm_acct_mgmt , 62returns failure if the user is attempting to authenticate as superuser, 63and the process is attached to an insecure TTY. 64In all other cases, the module returns success. 65.Pp 66A TTY is considered secure if it is listed in 67.Pa /etc/ttys 68and has the 69.Dv TTY_SECURE 70flag set. 71.Pp 72The following options may be passed to the authentication module: 73.Bl -tag -width ".Cm no_warn" 74.It Cm debug 75.Xr syslog 3 76debugging information at 77.Dv LOG_DEBUG 78level. 79.It Cm no_warn 80suppress warning messages to the user. 81These messages include 82reasons why the user's 83authentication attempt was declined. 84.El 85.Sh SEE ALSO 86.Xr getttynam 3 , 87.Xr syslog 3 , 88.Xr pam.conf 5 , 89.Xr ttys 5 , 90.Xr pam 3 91