•You can set a password for root accounts.

•You can remove root accounts that are accessible from outside the local host.

•You can remove anonymous-user accounts.

•You can remove the test database (which by default can be accessed by all users, even anonymous users), and privileges that permit anyone to access databases with names that start with test_.

shell> mysql_secure_installation

shell> mysql_secure_installation --host=::1 --port=3307

•--help, -?

Display a help message and exit.

•--defaults-extra-file=file_name

Read this option file after the global option file but (on Unix) before the user option file. If the file does not exist or is otherwise inaccessible, an error occurs. file_name is interpreted relative to the current directory if given as a relative path name rather than a full path name.

For additional information about this and other option-file options, see Section 4.2.7, “Command-Line Options that Affect Option-File Handling”.

•--defaults-file=file_name

Use only the given option file. If the file does not exist or is otherwise inaccessible, an error occurs. file_name is interpreted relative to the current directory if given as a relative path name rather than a full path name.

For additional information about this and other option-file options, see Section 4.2.7, “Command-Line Options that Affect Option-File Handling”.

•--defaults-group-suffix=str

Read not only the usual option groups, but also groups with the usual names and a suffix of str. For example, mysql_secure_installation normally reads the [client] and [mysql_secure_installation] groups. If the --defaults-group-suffix=_other option is given, mysql_secure_installation also reads the [client_other] and [mysql_secure_installation_other] groups.

For additional information about this and other option-file options, see Section 4.2.7, “Command-Line Options that Affect Option-File Handling”.

•--host=host_name, -h host_name

Connect to the MySQL server on the given host.

•--no-defaults

Do not read any option files. If program startup fails due to reading unknown options from an option file, --no-defaults can be used to prevent them from being read.

The exception is that the .mylogin.cnf file, if it exists, is read in all cases. This permits passwords to be specified in a safer way than on the command line even when --no-defaults is used. (.mylogin.cnf is created by the mysql_config_editor utility. See mysql_config_editor(1).)

For additional information about this and other option-file options, see Section 4.2.7, “Command-Line Options that Affect Option-File Handling”.

•--password=password, -p password

This option is accepted but ignored. Whether or not this option is used, mysql_secure_installation always prompts the user for a password.

•--port=port_num, -P port_num

The TCP/IP port number to use for the connection.

•--print-defaults

Print the program name and all options that it gets from option files.

For additional information about this and other option-file options, see Section 4.2.7, “Command-Line Options that Affect Option-File Handling”.

•--protocol={TCP|SOCKET|PIPE|MEMORY}

The connection protocol to use for connecting to the server. It is useful when the other connection parameters normally would cause a protocol to be used other than the one you want. For details on the permissible values, see Section 4.2.2, “Connecting to the MySQL Server”.

•--socket=path, -S path

For connections to localhost, the Unix socket file to use, or, on Windows, the name of the named pipe to use.

•--ssl*

Options that begin with --ssl specify whether to connect to the server using SSL and indicate where to find SSL keys and certificates. See Section 6.3.2, “Command Options for Encrypted Connections”.

•--tls-version=protocol_list

The protocols the client permits for encrypted connections. The value is a list of one or more comma-separated protocol names. The protocols that can be named for this option depend on the SSL library used to compile MySQL. For details, see Section 6.3.6, “Encrypted Connection Protocols and Ciphers”.

This option was added in MySQL 5.7.10.

•--use-default

Execute noninteractively. This option can be used for unattended installation operations.

•--user=user_name, -u user_name

The MySQL user name to use when connecting to the server.