'\" t
.\"     Title: \fBmysql_config_editor\fR
.\"    Author: [FIXME: author] [see http://docbook.sf.net/el/author]
.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/>
.\"      Date: 11/21/2014
.\"    Manual: MySQL Database System
.\"    Source: MySQL 5.6
.\"  Language: English
.\"
.TH "\FBMYSQL_CONFIG_EDIT" "1" "11/21/2014" "MySQL 5\&.6" "MySQL Database System"
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.\" mysql_config_editor
.\" .mylogin.cnf file
.SH "NAME"
mysql_config_editor \- configure authentication information for connecting to MySQL server
.SH "SYNOPSIS"
.HP \w'\fBmysql_config_editor\ \fR\fB\fIoptions\ command\fR\fR\ 'u
\fBmysql_config_editor \fR\fB\fIoptions command\fR\fR
.SH "DESCRIPTION"
.PP
The
\fBmysql_config_editor\fR
utility (available as of MySQL 5\&.6\&.6) enables you to store authentication credentials in an encrypted login file named
\&.mylogin\&.cnf\&. The file location is the
%APPDATA%\eMySQL
directory on Windows and the current user\*(Aqs home directory on non\-Windows systems\&. The file can be read later by MySQL client programs to obtain authentication credentials for connecting to MySQL Server\&.
.PP
To specify an alternate file name, set the
MYSQL_TEST_LOGIN_FILE
environment variable\&. This variable is used by the
\fBmysql\-test\-run\&.pl\fR
testing utility, but also is recognized by
mysql_config_editor
and by MySQL clients such as
\fBmysql\fR,
\fBmysqladmin\fR, and so forth\&.
.PP
\fBmysql_config_editor\fR
encrypts the
\&.mylogin\&.cnf
file so it cannot be read as clear text, and its contents when decrypted by client programs are used only in memory\&. In this way, passwords can be stored in a file in non\-cleartext format and used later without ever needing to be exposed on the command line or in an environment variable\&.
\fBmysql_config_editor\fR
provides a
print
command that enables the user to display the file contents, but even in this case, password values are masked so as never to appear in a way that other users can see them\&.
.PP
The encryption used by
\fBmysql_config_editor\fR
prevents passwords from appearing in
\&.mylogin\&.cnf
as clear text and provides a measure of security by preventing inadvertent password exposure\&. For example, if you display a regular unencrypted
my\&.cnf
option file on the screen, any passwords it contains are visible for anyone to see\&. With
\&.mylogin\&.cnf, that is not true\&. But the encryption used will not deter a determined attacker and you should not consider it unbreakable\&. A user who can gain system administration privileges on your machine to access your files could decrypt the
\&.mylogin\&.cnf
file with some effort\&.
.PP
The login file must be readable and writable to the current user, and inaccessible to other users\&. Otherwise,
\fBmysql_config_editor\fR
ignores it, and the file is not used by client programs, either\&. On Windows, this constraint does not apply; instead, the user must have access to the
%APPDATA%\eMySQL
directory\&.
.PP
The unencrypted format of the
\&.mylogin\&.cnf
login file consists of option groups, similar to other option files\&. Each option group in
\&.mylogin\&.cnf
is called a
\(lqlogin path,\(rq
which is a group that permits only a limited set of options:
\fBhost\fR,
\fBuser\fR, and
\fBpassword\fR\&. Think of a login path as a set of values that indicate the server host and the credentials for authenticating with the server\&. Here is an example:
.sp
.if n \{\
.RS 4
.\}
.nf
[myloginpath]
user = myname
password = mypass
host = 127\&.0\&.0\&.1
.fi
.if n \{\
.RE
.\}
.PP
When you invoke a client program to connect to the server,
\&.mylogin\&.cnf
is used in conjunction with other option files\&. Its precedence is higher than other option files, but less than options specified explicitly on the client command line\&. For information about the order in which option files are used, see
Section\ \&4.2.6, \(lqUsing Option Files\(rq\&.
.PP
Invoke
mysql_config_editor
like this:
.sp
.if n \{\
.RS 4
.\}
.nf
shell> \fBmysql_config_editor [\fR\fB\fIprogram_options\fR\fR\fB] \fR\fB\fIcommand\fR\fR\fB [\fR\fB\fIcommand_options\fR\fR\fB]\fR
.fi
.if n \{\
.RE
.\}
.PP
\fIprogram_options\fR
consists of general
\fBmysql_config_editor\fR
options\&.
command
indicates what command to perform, and
\fIcommand_options\fR
indicates any additional options needed by the command\&.
.PP
The command indicates what action to perform on the
\&.mylogin\&.cnf
login file\&. For example,
set
writes a login path to the file,
remove
removes a login path, and
print
displays login path contents\&. Any options given provide information to the command, such as the login path name and the values to use in the login path\&.
.PP
The position of the command name within the set of program arguments is significant\&. For example, these command lines have the same arguments, but produce different results:
.sp
.if n \{\
.RS 4
.\}
.nf
mysql_config_editor \-\-help set
mysql_config_editor set \-\-help
.fi
.if n \{\
.RE
.\}
.PP
The first command line displays general
\fBmysql_config_editor\fR
help, and ignores the
set
command\&. The second command line displays help for the
set
command\&.
.PP
Suppose that you want to establish two login paths named
local
and
remote
for connecting to the local MySQL server and a server on the host
remote\&.example\&.com\&. You want to authenticate to the local server with a user name and password of
localuser
and
localpass, and to the remote server with a user name and password of
remoteuser
and
remotepass\&. To set up the login paths in the
\&.mylogin\&.cnf
file, use the following
set
commands\&. Enter each command on a single line, then enter the appropriate password when prompted\&.
.sp
.if n \{\
.RS 4
.\}
.nf
shell> \fBmysql_config_editor set \-\-login\-path=local
         \-\-host=localhost \-\-user=localuser \-\-password\fR
Enter password: \fIenter password "localpass" here\fR
shell> \fBmysql_config_editor set \-\-login\-path=remote
         \-\-host=remote\&.example\&.com \-\-user=remoteuser \-\-password\fR
Enter password: \fIenter password "remotepass" here\fR
.fi
.if n \{\
.RE
.\}
.PP
To see what
\fBmysql_config_editor\fR
wrote to the
\&.mylogin\&.cnf
file, use the
print
command:
.sp
.if n \{\
.RS 4
.\}
.nf
shell> \fBmysql_config_editor print \-\-all\fR
[local]
user = localuser
password = *****
host = localhost
[remote]
user = remoteuser
password = *****
host = remote\&.example\&.com
.fi
.if n \{\
.RE
.\}
.PP
The
print
command displays each login path as a set of lines beginning with a group header indicating the login path name in square brackets, followed by the option values for the login path\&. Password values are masked and do not appear as clear text\&.
.PP
As shown by the preceding examples, the
\&.mylogin\&.cnf
file can contain multiple login paths\&. In this way,
\fBmysql_config_editor\fR
makes it easy to set up multiple
\(lqpersonalities\(rq
for connecting to different MySQL servers\&. Any of these can be selected by name later using the
\fB\-\-login\-path\fR
option when you invoke a client program\&. For example, to connect to the local server, use this command:
.sp
.if n \{\
.RS 4
.\}
.nf
shell> \fBmysql \-\-login\-path=local\fR
.fi
.if n \{\
.RE
.\}
.PP
To connect to the remote server, use this command:
.sp
.if n \{\
.RS 4
.\}
.nf
shell> \fBmysql \-\-login\-path=remote\fR
.fi
.if n \{\
.RE
.\}
.PP
When you use the
set
command with
\fBmysql_config_editor\fR
to create a login path, you need not specify all three possible option values (host name, user name, and password)\&. Only those values given are written to the path\&. Any missing values required later can be specified when you invoke a client path to connect to the MySQL server, either in other option files or on the command line\&. Also, any options specified on the command line override those in option files, including the
\&.mylogin\&.cnf
file\&. For example, if the credentials in the
remote
login path also apply for the host
remote2\&.example\&.com, you can connect to the server on that host like this:
.sp
.if n \{\
.RS 4
.\}
.nf
shell> \fBmysql \-\-login\-path=remote \-\-host=remote2\&.example\&.com\fR
.fi
.if n \{\
.RE
.\}
.PP
The
\&.mylogin\&.cnf
file, if it exists, is read in all cases, even when the
\fB\-\-no\-defaults\fR
option is used\&. This permits passwords to be specified in a safer way than on the command line even if
\fB\-\-no\-defaults\fR
is present\&.
mysql_config_editor Commands.PP
This section describes the permitted
\fBmysql_config_editor\fR
commands, and the interpretation of options that have a command\-specific meaning\&. In addition,
\fBmysql_config_editor\fR
takes other options that can be used with any command, such as
\fB\-\-verbose\fR
to produce more information as
\fBmysql_config_editor\fR
executes\&. This option may be helpful in diagnosing problems if an operation does not have the effect you expect\&. For a list of supported options, see
\fBmysql_config_editor\fR Options\&.
.PP
\fBmysql_config_editor\fR
supports these commands:
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
help
.sp
Display a help message and exit\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
print [\fIoptions\fR]
.sp
Print the contents of
\&.mylogin\&.cnf
in unencrypted form\&. Passwords are displayed as
*****\&.
.sp
The
print
command takes these options:
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
\fB\-\-all\fR
.sp
Print all login paths\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
\fB\-\-login\-path=\fR\fB\fIname\fR\fR
.sp
Print the named login path\&.
.RE
.sp
If no login path is specified, the default path name is
client\&. If both
\fB\-\-all\fR
and
\fB\-\-login\-path\fR
are given,
\fB\-\-all\fR
takes precedence\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
remove [\fIoptions\fR]
.sp
Remove a login path from the
\&.mylogin\&.cnf
file\&.
.sp
The
remove
command takes these options:
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
\fB\-\-host\fR
.sp
Remove the host name from the login path\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
\fB\-\-login\-path=\fR\fB\fIname\fR\fR
.sp
The login path to remove\&. If this option is not given, the default path name is
client\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
\fB\-\-password\fR
.sp
Remove the password from the login path\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
\fB\-\-port\fR
.sp
Remove the TCP/IP port number from the login path\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
\fB\-\-socket\fR
.sp
Remove the Unix socket file name from the login path\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
\fB\-\-user\fR
.sp
Remove the user name from the login path\&.
.RE
.sp
The
\fB\-\-host\fR,
\fB\-\-user\fR, and
\fB\-\-password\fR
options are supported for the
remove
command as of MySQL 5\&.6\&.9\&. The
\fB\-\-port\fR
and
\fB\-\-socket\fR
options are supported for the
remove
command as of MySQL 5\&.6\&.11
.sp
The
remove
command removes from the login path only such values as are specified with the
\fB\-\-host\fR,
\fB\-\-password\fR,
\fB\-\-port\fR,
\fB\-\-socket\fR, and
\fB\-\-user\fR
options\&. If none of them is given,
remove
removes the entire login path\&. For example, this command removes only the
\fBuser\fR
value from the
client
login path rather than the entire
client
login path:
.sp
.if n \{\
.RS 4
.\}
.nf
mysql_config_editor remove \-\-login\-path=client \-\-user
.fi
.if n \{\
.RE
.\}
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
reset
.sp
Empty the contents of the
\&.mylogin\&.cnf
file\&. The file is created if it does not exist\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
set [\fIoptions\fR]
.sp
Write a login path to the
\&.mylogin\&.cnf
file\&.
.sp
The
set
command takes these options:
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
\fB\-\-host=\fR\fB\fIhost_name\fR\fR
.sp
The host name to write to the login path\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
\fB\-\-login\-path=\fR\fB\fIname\fR\fR
.sp
The login path to create\&. If this option is not given, the default path name is
client\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
\fB\-\-password\fR
.sp
Prompt for a password to write to the login path\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
\fB\-\-port=\fR\fB\fIport_num\fR\fR
.sp
The TCP/IP port number to write to the login path\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
\fB\-\-socket=\fR\fB\fIfile_name\fR\fR
.sp
The Unix socket file to write to the login path\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
\fB\-\-user=\fR\fB\fIuser_name\fR\fR
.sp
The user name to write to the login path\&.
.RE
.sp
The
\fB\-\-port\fR
and
\fB\-\-socket\fR
options are supported for the
set
command as of MySQL 5\&.6\&.11
.sp
The
set
command writes to the login path only such values as are specified with the
\fB\-\-host\fR,
\fB\-\-password\fR,
\fB\-\-port\fR,
\fB\-\-socket\fR, and
\fB\-\-user\fR
options\&. If none of those options are given,
\fBmysql_config_editor\fR
writes the login path as an empty group\&.
.sp
To specify an empty password, use the
set
command with the
\fB\-\-password\fR
option, then press Enter at the password prompt\&. The resulting login path written to
\&.mylogin\&.cnf
will include a line like this:
.sp
.if n \{\
.RS 4
.\}
.nf
password =
.fi
.if n \{\
.RE
.\}
.sp
If the login path already exists in
\&.mylogin\&.cnf, the
set
command replaces it\&. To ensure that this is what the user wants,
\fBmysql_config_editor\fR
prints a warning and prompts for confirmation\&. To suppress the warning and prompt, use the
\fB\-\-skip\-warn\fR
option\&.
.RE
mysql_config_editor Options.PP
\fBmysql_config_editor\fR
supports the following options\&.
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysql_config_editor: help option
.\" help option: mysql_config_editor
\fB\-\-help\fR,
\fB\-?\fR
.sp
Display a help message and exit\&. If preceded by a command name such as
set
or
remove, displays information about that command\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysql_config_editor: all option
.\" all option: mysql_config_editor
\fB\-\-all\fR
.sp
For the
print
command, print all login paths in the login file\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysql_config_editor: debug option
.\" debug option: mysql_config_editor
\fB\-\-debug[=\fR\fB\fIdebug_options\fR\fR\fB]\fR,
\fB\-# \fR\fB\fIdebug_options\fR\fR
.sp
Write a debugging log\&. A typical
\fIdebug_options\fR
string is
d:t:o,\fIfile_name\fR\&. The default is
d:t:o\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysql_config_editor: host option
.\" host option: mysql_config_editor
\fB\-\-host=\fR\fB\fIhost_name\fR\fR,
\fB\-h \fR\fB\fIhost_name\fR\fR
.sp
For the
set
command, the host name to write to the login path\&. For the
remove
command, removes the host name from the login path\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysql_config_editor: login-path option
.\" login-path option: mysql_config_editor
\fB\-\-login\-path=\fR\fB\fIname\fR\fR,
\fB\-G \fR\fB\fIname\fR\fR
.sp
For the
print,
remove, and
set
commands, the login path to use in the
\&.mylogin\&.cnf
login file\&.
.sp
Client programs also support the
\fB\-\-login\-path\fR
option, to enable users to specify which login path to use for connecting to a MySQL server\&. For client programs,
\fB\-\-login\-path\fR
must be the first option given, which is not true for
\fBmysql_config_editor\fR\&. See
Section\ \&4.2.7, \(lqCommand-Line Options that Affect Option-File Handling\(rq\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysql_config_editor: password option
.\" password option: mysql_config_editor
\fB\-\-password\fR,
\fB\-p\fR
.sp
For the
set
command, cause
\fBmysql_config_editor\fR
to prompt for a password and write the value entered by the user to the login path\&. After
\fBmysql_config_editor\fR
starts and displays the prompt, the user should type the password and press Enter\&. To prevent other users from seeing the password,
\fBmysql_config_editor\fR
does not echo it\&.
.sp
This option does not permit a password value following the option name\&. That is, with
\fBmysql_config_editor\fR, you never enter a password on the command line where it might be seen by other users\&. This differs from most other MySQL programs, which permit the password to be given on the command line as
\fB\-\-password=\fR\fB\fIpass_val\fR\fR
or
\fB\-p\fR\fB\fIpass_val\fR\fR\&. (That practice is insecure and should be avoided, however\&.)
.sp
For the
remove
command, removes the password from the login path\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysql_config_editor: port option
.\" port option: mysql_config_editor
\fB\-\-port=\fR\fB\fIport_num\fR\fR,
\fB\-P \fR\fB\fIport_num\fR\fR
.sp
For the
set
command, the TCP/IP port number to write to the login path\&. For the
remove
command, removes the port number from the login path\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysql_config_editor: socket option
.\" socket option: mysql_config_editor
\fB\-\-socket=\fR\fB\fIfile_name\fR\fR,
\fB\-S \fR\fB\fIfile_name\fR\fR
.sp
For the
set
command, the Unix socket file name to write to the login path\&. For the
remove
command, removes the socket file from the login path\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysql_config_editor: user option
.\" user option: mysql_config_editor
\fB\-\-user=\fR\fB\fIuser_name\fR\fR,
\fB\-u \fR\fB\fIuser_name\fR\fR
.sp
For the
set
command, the user name to write to the login path\&. For the
remove
command, removes the user name from the login path\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysql_config_editor: verbose option
.\" verbose option: mysql_config_editor
\fB\-\-verbose\fR,
\fB\-v\fR
.sp
Verbose mode\&. Print more information about what the program does\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysql_config_editor: version option
.\" version option: mysql_config_editor
\fB\-\-version\fR,
\fB\-V\fR
.sp
Display version information and exit\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysql_config_editor: warn option
.\" warn option: mysql_config_editor
\fB\-\-warn\fR,
\fB\-w\fR
.sp
For the
set
command, warn and prompt the user for confirmation if the command attempts to overwrite an existing login path\&. This option is enabled by default; use
\fB\-\-skip\-warn\fR
to disable it\&.
.RE
.SH "COPYRIGHT"
.br
.PP
Copyright \(co 1997, 2014, Oracle and/or its affiliates. All rights reserved.
.PP
This documentation is free software; you can redistribute it and/or modify it only under the terms of the GNU General Public License as published by the Free Software Foundation; version 2 of the License.
.PP
This documentation is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
.PP
You should have received a copy of the GNU General Public License along with the program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or see http://www.gnu.org/licenses/.
.sp
.SH "SEE ALSO"
For more information, please refer to the MySQL Reference Manual,
which may already be installed locally and which is also available
online at http://dev.mysql.com/doc/.
.SH AUTHOR
Oracle Corporation (http://dev.mysql.com/).