Annotation of src/usr.bin/rlogin/rlogin.1, Revision 1.1.1.1
1.1 deraadt 1: .\" $NetBSD: rlogin.1,v 1.4 1995/08/18 15:07:35 pk Exp $
2: .\"
3: .\" Copyright (c) 1983, 1990, 1993
4: .\" The Regents of the University of California. 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
23: .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24: .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25: .\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26: .\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27: .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28: .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29: .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30: .\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31: .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32: .\" SUCH DAMAGE.
33: .\"
34: .\" @(#)rlogin.1 8.1 (Berkeley) 6/6/93
35: .\"
36: .Dd June 6, 1993
37: .Dt RLOGIN 1
38: .Os BSD 4.2
39: .Sh NAME
40: .Nm rlogin
41: .Nd remote login
42: .Sh SYNOPSIS
43: .Ar rlogin
44: .Op Fl 8EKLdx
45: .Op Fl e Ar char
46: .Op Fl k Ar realm
47: .Op Fl l Ar username
48: .Ar host
49: .Sh DESCRIPTION
50: .Nm Rlogin
51: starts a terminal session on a remote host
52: .Ar host .
53: .Pp
54: .Nm Rlogin
55: first attempts to use the Kerberos authorization mechanism, described below.
56: If the remote host does not supporting Kerberos the standard Berkeley
57: .Pa rhosts
58: authorization mechanism is used.
59: The options are as follows:
60: .Bl -tag -width flag
61: .It Fl 8
62: The
63: .Fl 8
64: option allows an eight-bit input data path at all times; otherwise
65: parity bits are stripped except when the remote side's stop and start
66: characters are other than
67: ^S/^Q .
68: .It Fl E
69: The
70: .Fl E
71: option stops any character from being recognized as an escape character.
72: When used with the
73: .Fl 8
74: option, this provides a completely transparent connection.
75: .It Fl K
76: The
77: .Fl K
78: option turns off all Kerberos authentication.
79: .It Fl L
80: The
81: .Fl L
82: option allows the rlogin session to be run in ``litout'' (see
83: .Xr tty 4 )
84: mode.
85: .It Fl d
86: The
87: .Fl d
88: option turns on socket debugging (see
89: .Xr setsockopt 2 )
90: on the TCP sockets used for communication with the remote host.
91: .It Fl e
92: The
93: .Fl e
94: option allows user specification of the escape character, which is
95: ``~'' by default.
96: This specification may be as a literal character, or as an octal
97: value in the form \ennn.
98: .It Fl k
99: The
100: .Fl k
101: option requests rlogin to obtain tickets for the remote host
102: in realm
103: .Ar realm
104: instead of the remote host's realm as determined by
105: .Xr krb_realmofhost 3 .
106: .It Fl x
107: The
108: .Fl x
109: option turns on
110: .Tn DES
111: encryption for all data passed via the
112: rlogin session.
113: This may impact response time and
114: .Tn CPU
115: utilization, but provides
116: increased security.
117: .El
118: .Pp
119: A line of the form ``<escape char>.'' disconnects from the remote host.
120: Similarly, the line ``<escape char>^Z'' will suspend the
121: .Nm rlogin
122: session, and ``<escape char><delayed-suspend char>'' suspends the
123: send portion of the rlogin, but allows output from the remote system.
124: By default, the tilde (``~'') character is the escape character, and
125: normally control-Y (``^Y'') is the delayed-suspend character.
126: .Pp
127: All echoing takes place at the remote site, so that (except for delays)
128: the
129: .Nm rlogin
130: is transparent.
131: Flow control via ^S/^Q and flushing of input and output on interrupts
132: are handled properly.
133: .Sh KERBEROS AUTHENTICATION
134: Each user may have a private authorization list in the file
135: .Pa .klogin
136: in their home directory.
137: Each line in this file should contain a Kerberos principal name of the
138: form
139: .Ar principal.instance@realm .
140: If the originating user is authenticated to one of the principals named
141: in
142: .Pa .klogin ,
143: access is granted to the account.
144: The principal
145: .Ar accountname.@localrealm
146: is granted access if
147: there is no
148: .Pa .klogin
149: file.
150: Otherwise a login and password will be prompted for on the remote machine
151: as in
152: .Xr login 1 .
153: To avoid certain security problems, the
154: .Pa .klogin
155: file must be owned by
156: the remote user.
157: .Pp
158: If Kerberos authentication fails, a warning message is printed and the
159: standard Berkeley
160: .Nm rlogin
161: is used instead.
162: .Sh ENVIRONMENT
163: The following environment variable is utilized by
164: .Nm rlogin :
165: .Bl -tag -width TERM
166: .It Ev TERM
167: Determines the user's terminal type.
168: .El
169: .Sh SEE ALSO
170: .Xr rsh 1 ,
171: .Xr kerberos 3 ,
172: .Xr krb_sendauth 3 ,
173: .Xr krb_realmofhost 3
174: .Sh HISTORY
175: The
176: .Nm rlogin
177: command appeared in
178: .Bx 4.2 .
179: .Sh BUGS
180: .Nm Rlogin
181: will be replaced by
182: .Xr telnet 1
183: in the near future.
184: .Pp
185: More of the environment should be propagated.
![[BACK]](/icons/back.gif){kind=icon}
Return to rlogin.1 CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [local] / src / usr.bin / rlogin