Annotation of src/usr.bin/rsh/rsh.1, Revision 1.10
1.10 ! hin 1: .\" $OpenBSD: rsh.1,v 1.9 2001/06/23 22:14:28 hin Exp $
1.6 aaron 2: .\"
1.1 deraadt 3: .\" Copyright (c) 1983, 1990 The Regents of the University of California.
4: .\" All rights reserved.
5: .\"
6: .\" Redistribution and use in source and binary forms, with or without
7: .\" modification, are permitted provided that the following conditions
8: .\" are met:
9: .\" 1. Redistributions of source code must retain the above copyright
10: .\" notice, this list of conditions and the following disclaimer.
11: .\" 2. Redistributions in binary form must reproduce the above copyright
12: .\" notice, this list of conditions and the following disclaimer in the
13: .\" documentation and/or other materials provided with the distribution.
14: .\" 3. All advertising materials mentioning features or use of this software
15: .\" must display the following acknowledgement:
16: .\" This product includes software developed by the University of
17: .\" California, Berkeley and its contributors.
18: .\" 4. Neither the name of the University nor the names of its contributors
19: .\" may be used to endorse or promote products derived from this software
20: .\" without specific prior written permission.
21: .\"
22: .\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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27: .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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33: .\"
34: .\" from: @(#)rsh.1 6.10 (Berkeley) 7/24/91
35: .\"
36: .Dd July 24, 1991
37: .Dt RSH 1
1.5 aaron 38: .Os
1.1 deraadt 39: .Sh NAME
40: .Nm rsh
41: .Nd remote shell
42: .Sh SYNOPSIS
43: .Nm rsh
44: .Op Fl Kdnx
45: .Op Fl k Ar realm
46: .Op Fl l Ar username
1.7 aaron 47: .Ar hostname
1.4 aaron 48: .Op Ar command
1.1 deraadt 49: .Sh DESCRIPTION
1.6 aaron 50: .Nm
1.1 deraadt 51: executes
52: .Ar command
53: on
1.7 aaron 54: .Ar hostname .
1.1 deraadt 55: .Pp
1.6 aaron 56: .Nm
1.1 deraadt 57: copies its standard input to the remote command, the standard
58: output of the remote command to its standard output, and the
59: standard error of the remote command to its standard error.
60: Interrupt, quit and terminate signals are propagated to the remote
61: command;
1.6 aaron 62: .Nm
1.1 deraadt 63: normally terminates when the remote command does.
1.6 aaron 64: .Pp
1.1 deraadt 65: The options are as follows:
1.8 aaron 66: .Bl -tag -width Ds
1.1 deraadt 67: .It Fl K
1.7 aaron 68: Disable all Kerberos authentication.
1.1 deraadt 69: .It Fl d
1.7 aaron 70: Enable socket debugging (using
1.6 aaron 71: .Xr setsockopt 2 )
1.1 deraadt 72: on the
73: .Tn TCP
74: sockets used for communication with the remote host.
75: .It Fl k
1.7 aaron 76: Causes
1.6 aaron 77: .Nm
1.1 deraadt 78: to obtain tickets for the remote host in
79: .Ar realm
80: instead of the remote host's realm as determined by
1.6 aaron 81: .Xr krb_realmofhost 3 .
1.1 deraadt 82: .It Fl l
83: By default, the remote username is the same as the local username.
84: The
85: .Fl l
86: option allows the remote name to be specified.
87: Kerberos authentication is used, and authorization is determined
88: as in
1.6 aaron 89: .Xr rlogin 1 .
1.1 deraadt 90: .It Fl n
1.7 aaron 91: Redirect input from the special device
1.1 deraadt 92: .Pa /dev/null
93: (see the
94: .Sx BUGS
95: section of this manual page).
96: .El
97: .Pp
98: If no
99: .Ar command
100: is specified, you will be logged in on the remote host using
1.6 aaron 101: .Xr rlogin 1 .
1.7 aaron 102: .Pp
103: If
104: .Nm
105: is not invoked with the standard program name
106: .Pq Dq rsh ,
107: it uses this name as its
108: .Ar hostname
109: argument.
1.1 deraadt 110: .Pp
1.4 aaron 111: Shell meta-characters which are not quoted are interpreted on local machine,
112: while quoted meta-characters are interpreted on the remote machine.
1.1 deraadt 113: For example, the command
114: .Pp
115: .Dl rsh otherhost cat remotefile >> localfile
116: .Pp
117: appends the remote file
118: .Ar remotefile
119: to the local file
120: .Ar localfile ,
121: while
122: .Pp
123: .Dl rsh otherhost cat remotefile \&">>\&" other_remotefile
124: .Pp
125: appends
126: .Ar remotefile
127: to
128: .Ar other_remotefile .
129: .\" .Pp
130: .\" Many sites specify a large number of host names as commands in the
131: .\" directory /usr/hosts.
132: .\" If this directory is included in your search path, you can use the
133: .\" shorthand ``host command'' for the longer form ``rsh host command''.
134: .Sh FILES
135: .Bl -tag -width /etc/hosts -compact
136: .It Pa /etc/hosts
137: .El
138: .Sh SEE ALSO
139: .Xr rlogin 1 ,
140: .Xr kerberos 3 ,
1.4 aaron 141: .Xr krb_realmofhost 3 ,
1.1 deraadt 142: .Xr krb_sendauth 3 ,
1.3 deraadt 143: .Xr rcmd 3
1.1 deraadt 144: .Sh HISTORY
145: The
1.6 aaron 146: .Nm
1.1 deraadt 147: command appeared in
148: .Bx 4.2 .
149: .Sh BUGS
150: If you are using
1.6 aaron 151: .Xr csh 1
1.1 deraadt 152: and put a
1.6 aaron 153: .Nm
1.1 deraadt 154: in the background without redirecting its input away from the terminal,
155: it will block even if no reads are posted by the remote command.
156: If no input is desired you should redirect the input of
1.6 aaron 157: .Nm
1.1 deraadt 158: to
159: .Pa /dev/null
160: using the
161: .Fl n
162: option.
163: .Pp
164: You cannot run an interactive command
165: (like
1.6 aaron 166: .Xr rogue 6
1.1 deraadt 167: or
1.6 aaron 168: .Xr vi 1 )
1.1 deraadt 169: using
1.6 aaron 170: .Nm rsh ;
1.1 deraadt 171: use
1.6 aaron 172: .Xr rlogin 1
1.1 deraadt 173: instead.
174: .Pp
175: Stop signals stop the local
1.6 aaron 176: .Nm
1.1 deraadt 177: process only; this is arguably wrong, but currently hard to fix for reasons
178: too complicated to explain here.
1.9 hin 179: .Pp
180: .Nm
1.10 ! hin 181: does not currently support encryption of the datastream when Kerberos
1.9 hin 182: authentication is used.
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