.\" nologin - a login shell for disabling users.
.\"
.\" Copyright (c) 1997, 2001 Softweyr LLC, South Jordan, Utah USA.
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.\" Author: Wes Peters
.\" Date: Tue Jan 28 21:30:06 MST 1997
.Dd January 28, 1997
.Dt nologi8
.Os BSD 4
.Sh NAME
.Nm nologin
.Nd a login shell for disabled users
.Sh SYNOPSIS
.Nm nologin
.Op Fl m Ar message
.Sh DESCRIPTION
.Nm nologin
is a login shell for user accounts that have been disabled.  It logs
the attempted login via the
.Xr syslog 3
mechanism, with an 
.Ar ident
of "nologin" 
and a 
.Ar facility
of
.Dv LOG_AUTH .
Log entries will appear in the system log as:

.Dl Jan 28 21:36:54 hostname nologin: user on /dev/ttypX
.Pp
If the optional message is specified with 
.Fl m ,
it will be printed on the terminal, after the username, before the
user is disconnected.  Specifying
.Fl m
.Ar \*qaccount not available\*q
and attempting to login to the disabled user account \*qlinus\*q would
print the message
.Pp
.Dl linus: account not available
.Pp
on the terminal before exiting.
.Pp
Please note that you should 
.Em not
add the
.Nm nologin
program to the
.Pa /etc/shells
file, as you do not want users to accidentally set their shell to
.Nm nologin.
.Sh AUTHOR
Wes Peters <wes@softweyr.com>, Softweyr LLC.