164 lines
5.6 KiB
Groff
164 lines
5.6 KiB
Groff
.\" Copyright (c) 1985, 1991, 1993
|
|
.\" The Regents of the University of California. 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.
|
|
.\" 3. All advertising materials mentioning features or use of this software
|
|
.\" must display the following acknowledgement:
|
|
.\" This product includes software developed by the University of
|
|
.\" California, Berkeley and its contributors.
|
|
.\" 4. 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.
|
|
.\"
|
|
.\" from: @(#)ttys.5 8.1 (Berkeley) 6/4/93
|
|
.\" $Id: ttys.5,v 1.8 1997/06/02 21:03:20 davidn Exp $
|
|
.\" "
|
|
.Dd November 17, 1996
|
|
.Dt TTYS 5
|
|
.Os
|
|
.Sh NAME
|
|
.Nm ttys
|
|
.Nd terminal initialization information
|
|
.Sh DESCRIPTION
|
|
The file
|
|
.Nm
|
|
contains information that is used by various routines to initialize
|
|
and control the use of terminal special files.
|
|
This information is read with the
|
|
.Xr getttyent 3
|
|
library routines.
|
|
There is one line in the
|
|
.Nm
|
|
file per special device file.
|
|
Fields are separated by tabs and/or spaces.
|
|
Fields comprised of more than one word should be enclosed in double
|
|
quotes (``"'').
|
|
Blank lines and comments may appear anywhere in the file; comments
|
|
are delimited by hash marks (``#'') and new lines.
|
|
Any unspecified fields will default to null.
|
|
.Pp
|
|
The first field is the
|
|
name of the terminal special file as it is found in
|
|
.Pa /dev .
|
|
.Pp
|
|
The second field of the file is the command to execute for the line,
|
|
usually
|
|
.Xr getty 8 ,
|
|
which initializes and opens the line, setting the speed, waiting for
|
|
a user name and executing the
|
|
.Xr login 1
|
|
program.
|
|
It can be, however, any desired command, for example
|
|
the start up for a window system terminal emulator or some other
|
|
daemon process, and can contain multiple words if quoted.
|
|
.Pp
|
|
The third field is the type of terminal usually connected to that
|
|
tty line, normally the one found in the
|
|
.Xr termcap 5
|
|
data base file.
|
|
The environment variable
|
|
.Ev TERM
|
|
is initialized with the value by
|
|
either
|
|
.Xr getty 8
|
|
or
|
|
.Xr login 1 .
|
|
.Pp
|
|
The remaining fields set flags in the
|
|
.Fa ty_status
|
|
entry (see
|
|
.Xr getttyent 3 ),
|
|
specify a window system process that
|
|
.Xr init 8
|
|
will maintain for the terminal line, optionally determine the
|
|
type of tty (whether dialin, network or otherwise),
|
|
or specify a tty group
|
|
name that allows the login class database (see
|
|
.Xr login.conf 5 )
|
|
to refer to many ttys as a group, to selectively allow or
|
|
deny access or enable or disable accounting facilities for
|
|
ttys as a group.
|
|
.Pp
|
|
As flag values, the strings ``on'' and ``off'' specify that
|
|
.Xr init 8
|
|
should (should not) execute the command given in the second field,
|
|
while ``secure'' (if ``on'' is also specified) allows users with a
|
|
uid of 0 to login on
|
|
this line.
|
|
The flag ``dialin'' indicates that a tty entry describes a dialin
|
|
line, and ``network'' indicates that a tty entry provides a
|
|
network connection.
|
|
Either of these strings may also be specified in the terminal type
|
|
field.
|
|
The string ``window='' may be followed by a quoted command
|
|
string which
|
|
.Xr init 8
|
|
will execute
|
|
.Em before
|
|
starting the command specified by the second field.
|
|
.Pp
|
|
The string ``group='' may be followed by a group name comprised of
|
|
alphanumeric characters that can be used by
|
|
.Xr login.conf 5
|
|
to refer to many tty lines as a group to enable or disable access
|
|
and accounting facilities.
|
|
If no group is specified, then the tty becomes a member of the group
|
|
"none".
|
|
For backwards compatibility, the ``group='' should appear last on the
|
|
line, immediately before the optional comment.
|
|
.Sh EXAMPLES
|
|
.Bd -literal
|
|
# root login on console at 1200 baud
|
|
console "/usr/libexec/getty std.1200" vt100 on secure
|
|
# dialup at 1200 baud, no root logins
|
|
ttyd0 "/usr/libexec/getty d1200" dialup on group=dialup # 555-1234
|
|
# Mike's terminal: hp2621
|
|
ttyh0 "/usr/libexec/getty std.9600" hp2621-nl on group=dialup # 457 Evans
|
|
# John's terminal: vt100
|
|
ttyh1 "/usr/libexec/getty std.9600" vt100 on group=dialup # 459 Evans
|
|
# terminal emulate/window system
|
|
ttyv0 "/usr/new/xterm -L :0" vs100 on window="/usr/new/Xvs100 0"
|
|
# Network pseudo ttys -- don't enable getty
|
|
ttyp0 none network group=pty
|
|
ttyp1 none network off group=pty
|
|
.Ed
|
|
.Sh FILES
|
|
.Bl -tag -width /etc/ttys -compact
|
|
.It Pa /etc/ttys
|
|
.El
|
|
.Sh SEE ALSO
|
|
.Xr login 1 ,
|
|
.Xr getttyent 3 ,
|
|
.Xr ttyslot 3 ,
|
|
.Xr gettytab 5 ,
|
|
.Xr login.conf 5 ,
|
|
.Xr termcap 5 ,
|
|
.Xr getty 8 ,
|
|
.Xr init 8
|
|
.\".Xr init 8 ,
|
|
.\".Xr ttyflags 8
|
|
.Sh HISTORY
|
|
A
|
|
.Nm
|
|
file appeared in
|
|
.At v6 .
|