1*f3c74513SThomas Cort.\" $NetBSD: lock.1,v 1.9 2003/08/07 11:14:22 agc Exp $ 2*f3c74513SThomas Cort.\" 3*f3c74513SThomas Cort.\" Copyright (c) 1987, 1990, 1993 4*f3c74513SThomas Cort.\" The Regents of the University of California. All rights reserved. 5*f3c74513SThomas Cort.\" 6*f3c74513SThomas Cort.\" Redistribution and use in source and binary forms, with or without 7*f3c74513SThomas Cort.\" modification, are permitted provided that the following conditions 8*f3c74513SThomas Cort.\" are met: 9*f3c74513SThomas Cort.\" 1. Redistributions of source code must retain the above copyright 10*f3c74513SThomas Cort.\" notice, this list of conditions and the following disclaimer. 11*f3c74513SThomas Cort.\" 2. Redistributions in binary form must reproduce the above copyright 12*f3c74513SThomas Cort.\" notice, this list of conditions and the following disclaimer in the 13*f3c74513SThomas Cort.\" documentation and/or other materials provided with the distribution. 14*f3c74513SThomas Cort.\" 3. Neither the name of the University nor the names of its contributors 15*f3c74513SThomas Cort.\" may be used to endorse or promote products derived from this software 16*f3c74513SThomas Cort.\" without specific prior written permission. 17*f3c74513SThomas Cort.\" 18*f3c74513SThomas Cort.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 19*f3c74513SThomas Cort.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20*f3c74513SThomas Cort.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21*f3c74513SThomas Cort.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 22*f3c74513SThomas Cort.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23*f3c74513SThomas Cort.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24*f3c74513SThomas Cort.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25*f3c74513SThomas Cort.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26*f3c74513SThomas Cort.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27*f3c74513SThomas Cort.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28*f3c74513SThomas Cort.\" SUCH DAMAGE. 29*f3c74513SThomas Cort.\" 30*f3c74513SThomas Cort.\" @(#)lock.1 8.1 (Berkeley) 6/6/93 31*f3c74513SThomas Cort.\" 32*f3c74513SThomas Cort.Dd June 6, 1993 33*f3c74513SThomas Cort.Dt LOCK 1 34*f3c74513SThomas Cort.Os 35*f3c74513SThomas Cort.Sh NAME 36*f3c74513SThomas Cort.Nm lock 37*f3c74513SThomas Cort.Nd reserve a terminal 38*f3c74513SThomas Cort.Sh SYNOPSIS 39*f3c74513SThomas Cort.Nm 40*f3c74513SThomas Cort.Op Fl np 41*f3c74513SThomas Cort.Op Fl t Ar timeout 42*f3c74513SThomas Cort.Sh DESCRIPTION 43*f3c74513SThomas Cort.Nm 44*f3c74513SThomas Cortrequests a password from the user, reads it again for verification 45*f3c74513SThomas Cortand then will normally not relinquish the terminal until the password is 46*f3c74513SThomas Cortrepeated. 47*f3c74513SThomas CortThere are two other conditions under which it will terminate: it 48*f3c74513SThomas Cortwill timeout after some interval of time and it may be killed by someone 49*f3c74513SThomas Cortwith the appropriate permission. 50*f3c74513SThomas Cort.Pp 51*f3c74513SThomas CortOptions: 52*f3c74513SThomas Cort.Pp 53*f3c74513SThomas Cort.Bl -tag -width Fl 54*f3c74513SThomas Cort.It Fl n 55*f3c74513SThomas CortNo timeout is used. 56*f3c74513SThomas CortThe terminal will be locked indefinitely or until current challenge is met. 57*f3c74513SThomas Cort.It Fl p 58*f3c74513SThomas CortA password is not requested, instead the user's current login password 59*f3c74513SThomas Cortis used. 60*f3c74513SThomas CortIf the user has an S/Key key, they may also use it 61*f3c74513SThomas Cortto unlock the terminal. 62*f3c74513SThomas CortTo do this the user should enter "s/key" at the unlock "Key:" prompt. 63*f3c74513SThomas CortThe user will then be issued an S/Key challenge to which they may respond 64*f3c74513SThomas Cortwith a six-word S/Key one-time password. 65*f3c74513SThomas Cort.It Fl t Ar timeout 66*f3c74513SThomas CortThe time limit (default 15 minutes) is changed to 67*f3c74513SThomas Cort.Ar timeout 68*f3c74513SThomas Cortminutes. 69*f3c74513SThomas Cort.El 70*f3c74513SThomas Cort.Sh SEE ALSO 71*f3c74513SThomas Cort.Xr skey 1 72*f3c74513SThomas Cort.Sh HISTORY 73*f3c74513SThomas CortThe 74*f3c74513SThomas Cort.Nm 75*f3c74513SThomas Cortcommand appeared in 76*f3c74513SThomas Cort.Bx 3.0 . 77