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14 .\" Copyright 2013 DEY Storage Systems, Inc.
15 .\" Copyright (c) 2014 Gary Mills
16 .\" Copyright 2015 Nexenta Systems, Inc. All rights reserved.
17 .TH ZLOGIN 1 "Mar 17, 2015"
19 zlogin \- enter a zone
23 \fBzlogin\fR [\fB-dCEQ\fR] [\fB-e\fR \fIc\fR] [\fB-l\fR \fIusername\fR] \fIzonename\fR
28 \fBzlogin\fR [\fB-nEQS\fR] [\fB-e\fR \fIc\fR] [\fB-l\fR \fIusername\fR] \fIzonename\fR \fIutility\fR
35 The \fBzlogin\fR utility is used by the administrator to enter an operating
36 system zone. Only a superuser operating in the global system zone can use this
40 \fBzlogin\fR operates in one of three modes:
44 \fBInteractive Mode\fR
47 If no utility argument is given and the stdin file descriptor for the
48 \fBzlogin\fR process is a tty device, \fBzlogin\fR operates in \fBinteractive
49 mode\fR. In this mode, \fBzlogin\fR creates a new pseudo terminal for use
50 within the login session. Programs requiring a tty device, for example,
51 \fBvi\fR(1), work properly in this mode. In this mode, \fBzlogin\fR invokes
52 \fBlogin\fR(1) to provide a suitable login session.
58 \fBNon-Interactive Mode\fR
61 If a utility is specified, \fBzlogin\fR operates in \fBnon-interactive mode\fR.
62 This mode can be useful for script authors since stdin, stdout, and stderr are
63 preserved and the exit status of \fIutility\fR is returned upon termination. In
64 this mode, \fBzlogin\fR invokes \fBsu\fR(1M) in order to set up the user's
65 environment and to provide a login environment.
67 The specified command is passed as a string and interpreted by a shell running
68 in the non-global zone. See \fBrsh\fR(1).
77 If the \fB-C\fR option is specified, the user is connected to the zone console
78 device and \fBzlogin\fR operates in \fBconsole mode\fR. The zone console is
79 available once the zone is in the installed state. Connections to the console
80 are persistent across reboot of the zone.
86 The following options are supported:
93 Connects to the zone console.
102 Disconnect from the console when the zone halts. This option may only be used
103 if the \fB-C\fR option is specified.
109 \fB\fB-e\fR \fIc\fR\fR
112 Specifies a different escape character, \fIc\fR, for the key sequence used to
113 access extended functions and to disconnect from the login. The default escape
114 character is the tilde (\fB~\fR).
123 Disables the ability to access extended functions or to disconnect from the
124 login by using the escape sequence character.
130 \fB\fB-l\fR \fIusername\fR\fR
133 Specifies a different \fIusername\fR for the zone login. If you do not use this
134 option, the zone username used is "root". This option is invalid if the
135 \fB-C\fR option is specified.
144 Redirect the input of \fBzlogin\fR to \fB/dev/null\fR.
145 This option is useful when the command running in the local zone
146 and the shell which invokes \fBzlogin\fR both read from standard input.
155 Specifies quiet mode operation. In quiet mode, extra messages indicating the
156 the function of \fBzlogin\fR will not be displayed, giving the possibility
157 to present the appearance that the command is running locally rather than
167 "Safe" login mode. \fBzlogin\fR does minimal processing and does not invoke
168 \fBlogin\fR(1) or \fBsu\fR(1M). The \fB-S\fR option can not be used if a
169 username is specified through the \fB-l\fR option, and cannot be used with
170 console logins. This mode should only be used to recover a damaged zone when
171 other forms of login have become impossible.
174 .SS "Escape Sequences"
177 Lines that you type that start with the tilde character (\fB~\fR) are "escape
178 sequences". The escape character can be changed using the \fB-e\fR option.
185 Disconnects from the zone. This is not the same as a logout, because the local
186 host breaks the connection with no warning to the zone's end.
192 Once a process has been placed in a zone other than the global zone, the
193 process cannot change zone again, nor can any of its children.
197 The following operands are supported:
204 The name of the zone to be entered.
213 The utility to be run in the specified zone.
219 \fB\fIargument...\fR\fR
222 Arguments passed to the utility.
228 In interactive and non-interactive modes, the \fBzlogin\fR utility exits when
229 the command or shell in the non-global zone exits. In non-interactive mode, the
230 exit status of the remote program is returned as the exit status of
231 \fBzlogin\fR. In interactive mode and console login mode, the exit status is
232 not returned. \fBzlogin\fR returns a \fB0\fR exit status as long as no
233 connection-related error occurred.
236 In all modes, in the event that a connection to the zone cannot be established,
237 the connection fails unexpectedly, or the user is lacking sufficient privilege
238 to perform the requested operation, \fBzlogin\fR exits with status \fB1\fR.
241 To summarize, the following exit values are returned:
257 Permission denied, or failure to enter the zone.
266 Return code from utility, or from \fBsu\fR(1M) if operating in non-interactive
273 See \fBattributes\fR(5) for descriptions of the following attributes:
281 ATTRIBUTE TYPE ATTRIBUTE VALUE
283 Interface Stability Evolving
289 \fBlogin\fR(1), \fBrsh\fR(1), \fBvi\fR(1), \fBsu\fR(1M), \fBzoneadm\fR(1M),
290 \fBzonecfg\fR(1M), \fBattributes\fR(5), \fBzones\fR(5)
294 \fBzlogin\fR fails if its open files or any portion of its address space
295 corresponds to an NFS file. This includes the executable itself or the shared