.\" opiesu.c: Manual page for the opiesu(1) program.
.\"
.\" %%% portions-copyright-cmetz-96
.\" Portions of this software are Copyright 1996-1999 by Craig Metz, All Rights
.\" Reserved. The Inner Net License Version 2 applies to these portions of
.\" the software.
.\" You should have received a copy of the license with this software. If
.\" you didn't get a copy, you may request one from <license@inner.net>.
.\"
.\" Portions of this software are Copyright 1995 by Randall Atkinson and Dan
.\" McDonald, All Rights Reserved. All Rights under this copyright are assigned
.\" to the U.S. Naval Research Laboratory (NRL). The NRL Copyright Notice and
.\" License Agreement applies to this software.
.\"
.\"	History:
.\"
.\"     Modified by cmetz for OPIE 2.3. Removed statement that opiesu will
.\"		only accept OTP responses.
.\"     Modified by cmetz for OPIE 2.2. Removed MJR DES documentation.
.\"	Modified at NRL for OPIE 2.0.
.\"	Documentation for the "-f" option from BSD.
.\"	Written at Bellcore for the S/Key Version 1 software distribution
.\"		(keysu.1).
.\"
.ll 6i
.pl 10.5i
.lt 6.0i
.TH OPIESU 1 "January 10, 1995"
.AT 3
.SH NAME
opiesu \- Replacement su(1) program that uses OPIE challenges
.SH SYNOPSIS
.B opiesu
[ \-f ] [ \-c ] [
.I user_name
] 
.SH DESCRIPTION
.I opiesu
is a replacement for the su(1) program that issues OPIE challenges and
uses OPIE responses. It is downward compatible with keysu(1) from the
Bellcore S/Key Version 1 distribution and the su(1) program from the 4.3BSD
Net/2 distribution.
.SH OPTIONS
.TP
.B \-f
If the invoked shell is csh(1),  this option prevents it from
reading the ``.cshrc'' file.  (The [f] option may be passed as a
shell argument after the login name, so this option is redundant
and obsolescent.)
.TP
.B \-c
Set console mode where the user is expected to have secure access to the
system. In console mode, you will be asked to input your password directly
instead of having to use an OPIE calculator. If you do not have secure access
to the system (i.e., you are not on the system's console), you are
volunteering your password to attackers by using this mode.
.TP
.I user_name
The name of the user to become.
The default is root.
.SH EXAMPLE
.sp 0
wintermute$ opiesu kebe
.sp 0
otp-md5 498 wi910502
.sp 0
(OTP response required)
.sp 0
kebe's password:  (echo on)
.sp 0
kebe's password: RARE GLEN HUGH BOYD NECK MOLL
.sp 0
wintermute# 
.LP
.SH FILES
.TP
/etc/opiekeys database of information for OPIE system.
.LP
.SH SEE ALSO
.BR su (1),
.BR opie (4),
.BR opiekey (1),
.BR opieinfo (1),
.BR opiesu (1),
.BR opielogin (1),
.BR opieftpd (8),
.BR opiekeys (5),
.BR opieaccess (5)
 
.SH AUTHOR
Bellcore's S/Key was written by Phil Karn, Neil M. Haller, and John S. Walden
of Bellcore. OPIE was created at NRL by Randall Atkinson, Dan McDonald, and
Craig Metz.

S/Key is a trademark of Bell Communications Research (Bellcore).

.SH CONTACT
OPIE is discussed on the Bellcore "S/Key Users" mailing list. To join,
send an email request to:
.sp 
skey-users-request@thumper.bellcore.com