mirror of https://github.com/GnoConsortium/gno.git
initial checkin of GNO-formatted man page
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# @(#)Makefile 8.1 (Berkeley) 7/19/93
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# $Id: Makefile,v 1.2 1998/03/11 03:08:15 gdr-ftp Exp $
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# $Id: Makefile,v 1.3 1998/04/17 01:02:22 gdr-ftp Exp $
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PROG= rlogin
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SRCS= rlogin.c
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LDADD= -lnetdb
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OPTIMIZE=79
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BINDIR = /usr/bin
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HAS_BSD_MANPAGE = true
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#.if exists(${DESTDIR}/usr/lib/libkrb.a) && (defined(MAKE_KERBEROS) \
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# || defined(MAKE_EBONES))
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.\" Copyright (c) 1983, 1990, 1993
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.\" The Regents of the University of California. All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. All advertising materials mentioning features or use of this software
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.\" must display the following acknowledgement:
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.\" This product includes software developed by the University of
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.\" California, Berkeley and its contributors.
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.\" 4. Neither the name of the University nor the names of its contributors
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.\" may be used to endorse or promote products derived from this software
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.\" without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" @(#)rlogin.1 8.1 (Berkeley) 6/6/93
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.\"
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.TH RLOGIN 1 "16 April 1998" GNO "Commands and Applications"
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.SH NAME
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.BR rlogin
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\- remote login
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.SH SYNOPSIS
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.BR rlogin
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.RB [ -8DEKLdx ]
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.RB [ -e
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.IR char ]
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.RB [ -k
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.IR realm ]
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.RB [ -l
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.IR username ]
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.I host
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.SH DESCRIPTION
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.BR Rlogin
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starts a terminal session on a remote host
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.BR host .
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.LP
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.BR Rlogin
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first attempts to use the Kerberos authorization mechanism, described below.
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If the remote host does not supporting Kerberos the standard Berkeley
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.Pa rhosts
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authorization mechanism is used.
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The options are as follows:
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.IP \fB-8\fR
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The
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.B -8
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option allows an eight-bit input data path at all times; otherwise
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parity bits are stripped except when the remote side's stop and start
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characters are other than ^S/^Q.
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.IP \fB-D\fR
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The
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.B -D
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option sets the TCP_NODELAY socket option which can improve interactive
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response at the expense of increased network load.
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.IP \fB-E\fR
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The
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.B -E
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option stops any character from being recognized as an escape character.
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When used with the
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.B -8
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option, this provides a completely transparent connection.
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.IP \fB-K\fR
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The
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.B -K
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option turns off all Kerberos authentication.
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.IP \fB-L\fR
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The
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.B -L
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option allows the rlogin session to be run in ``litout'' (see
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.BR tty (4))
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mode.
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.IP \fB-d\fR
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The
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.B -d
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option turns on socket debugging (see
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.BR setsockopt (2))
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on the TCP sockets used for communication with the remote host.
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.IP \fB-e\fR
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The
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.B -e
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option allows user specification of the escape character, which is
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``~'' by default.
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This specification may be as a literal character, or as an octal
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value in the form \ennn.
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.IP \fB-k\fR
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The
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.B -k
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option requests rlogin to obtain tickets for the remote host
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in realm
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.IR realm
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instead of the remote host's realm as determined by
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.BR krb_realmofhost (3).
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.IP \fB-x\fR
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The
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.B -x
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option turns on DES
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encryption for all data passed via the
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rlogin session.
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This may impact response time and CPU
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utilization, but provides
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increased security.
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.LP
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A line of the form ``<escape char>.'' disconnects from the remote host.
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Similarly, the line ``<escape char>^Z'' will suspend the
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.BR rlogin
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session, and ``<escape char><delayed-suspend char>'' suspends the
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send portion of the rlogin, but allows output from the remote system.
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By default, the tilde (``~'') character is the escape character, and
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normally control-Y (``^Y'') is the delayed-suspend character.
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.LP
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All echoing takes place at the remote site, so that (except for delays)
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the
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.BR rlogin
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is transparent.
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Flow control via ^S/^Q and flushing of input and output on interrupts
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are handled properly.
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.SH KERBEROS AUTHENTICATION
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Each user may have a private authorization list in the file \&.klogin
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in their home directory.
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Each line in this file should contain a Kerberos principal name of the
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form
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.BR principal.instance@realm .
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If the originating user is authenticated to one of the principals named
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in \&.klogin,
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access is granted to the account.
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The principal
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.BR accountname.@localrealm
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is granted access if there is no \&.klogin file.
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Otherwise a login and password will be prompted for on the remote machine
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as in
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.BR login (1).
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To avoid certain security problems, the \&.klogin file must be owned by
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the remote user.
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.LP
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If Kerberos authentication fails, a warning message is printed and the
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standard Berkeley
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.BR rlogin
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is used instead.
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.SH ENVIRONMENT
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The following environment variable is utilized by
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.BR rlogin :
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.IP TERM
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Determines the user's terminal type.
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.SH SEE ALSO
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.BR rsh (1),
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.BR kerberos (3),
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.BR krb_sendauth (3),
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.BR krb_realmofhost (3)
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.SH HISTORY
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The
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.BR rlogin
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command appeared in 4.2BSD.
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.SH BUGS
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.BR Rlogin
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will be replaced by
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.BR telnet (1)
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in the near future.
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.LP
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More of the environment should be propagated.
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@ -1,5 +1,5 @@
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# @(#)Makefile 8.1 (Berkeley) 7/19/93
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# $Id: Makefile,v 1.3 1998/03/11 03:08:10 gdr-ftp Exp $
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# $Id: Makefile,v 1.4 1998/04/17 01:01:16 gdr-ftp Exp $
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PROG= rsh
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SRCS= rsh.c
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@ -22,5 +22,6 @@ INSTALLFLAGS=-fschg
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LDADD= -lnetdb
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OPTIMIZE=79
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DEBUG= 25
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HAS_BSD_MANPAGE = true
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.INCLUDE: /src/gno/prog.mk
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@ -0,0 +1,171 @@
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.\" Copyright (c) 1983, 1990, 1993
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.\" The Regents of the University of California. All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. All advertising materials mentioning features or use of this software
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.\" must display the following acknowledgement:
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.\" This product includes software developed by the University of
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.\" California, Berkeley and its contributors.
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.\" 4. Neither the name of the University nor the names of its contributors
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.\" may be used to endorse or promote products derived from this software
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.\" without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" @(#)rsh.1 8.1 (Berkeley) 6/6/93
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.\"
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.TH RSH 1 "16 April 1998" GNO "Commands and Applications"
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.SH NAME
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.BR rsh
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\- remote shell
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.SH SYNOPSIS
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.BR rsh
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.RB [ -Kdnx ]
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.RB [ -k
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.IR realm ]
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.RB [ -l
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.IR username ]
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.I host
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.RI [ command ]
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.SH DESCRIPTION
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.BR Rsh
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executes
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.BR command
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on
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.BR host .
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.LP
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.BR Rsh
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copies its standard input to the remote command, the standard
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output of the remote command to its standard output, and the
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standard error of the remote command to its standard error.
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Interrupt, quit and terminate signals are propagated to the remote
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command;
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.BR rsh
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normally terminates when the remote command does.
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The options are as follows:
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.IP \fB-K\fR
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The
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.B -K
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option turns off all Kerberos authentication.
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.IP \fB-d\fR
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The
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.B -d
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option turns on socket debugging (using
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.BR setsockopt (2))
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on the TCP sockets used for communication with the remote host.
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.IP \fB-k\fR
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The
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.B -k
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option causes
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.BR rsh
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to obtain tickets for the remote host in
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.IR realm
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instead of the remote host's realm as determined by
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.BR krb_realmofhost (3).
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.IP \fB-l\fR
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By default, the remote username is the same as the local username. The
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.B -l
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option allows the remote name to be specified.
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Kerberos authentication is used, and authorization is determined as in
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.BR rlogin (1).
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.IP \fB-n\fR
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The
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.B -n
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option redirects input from the special device /dev/null (see the
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.B BUGS
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section of this manual page).
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.IP \fB-x\fR
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The
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.B -x
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option turns on DES
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encryption for all data exchange.
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This may introduce a significant delay in response time.
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.LP
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If no
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.BR command
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is specified, you will be logged in on the remote host using
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.BR rlogin (1).
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.LP
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Shell metacharacters which are not quoted are interpreted on local machine,
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while quoted metacharacters are interpreted on the remote machine.
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For example, the command
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.LP
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.nf
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rsh otherhost cat remotefile >> localfile
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.fi
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.LP
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appends the remote file
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.IR remotefile
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to the local file
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.IR localfile ,
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while
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.LP
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.nf
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rsh otherhost cat remotefile \&">>\&" other_remotefile
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.fi
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.LP
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appends
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.IR remotefile
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to
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.IR other_remotefile .
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.\" .LP
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.\" Many sites specify a large number of host names as commands in the
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.\" directory /usr/hosts.
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.\" If this directory is included in your search path, you can use the
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.\" shorthand ``host command'' for the longer form ``rsh host command''.
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.SH FILES
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/etc/hosts
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.SH SEE ALSO
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.BR rlogin (1),
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.BR kerberos (3),
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.BR krb_sendauth (3),
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.BR krb_realmofhost (3)
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.SH HISTORY
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The
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.BR rsh
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command appeared in 4.2BSD.
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.SH BUGS
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If you are using
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.BR csh (1)
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and put a
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.BR rsh
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in the background without redirecting its input away from the terminal,
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it will block even if no reads are posted by the remote command.
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If no input is desired you should redirect the input of
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.BR rsh
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to /dev/null using the
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.B -n
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option.
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.LP
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You cannot run an interactive command
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(like
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.BR rogue (6)
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or
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.BR vi (1))
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using
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.BR rsh ;
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use
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.BR rlogin (1)
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instead.
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.LP
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Stop signals stop the local
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.BR rsh
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process only; this is arguably wrong, but currently hard to fix for reasons
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too complicated to explain here.
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