5.1.1 mysqlauditadmin — Allows users to perform maintenance action on the audit log

This utility allow you to maintain the audit log, allowing you to monitor the audit log file growth and control its rotation. Rotation refers to the action of replacing the current audit log file by a new one for continuous use, renaming (with a timestamp extension) and copying the previously used audit log file to a defined location.

This utility allows you to view and modify a subset of audit log control variables, display the audit log file status, perform on-demand rotation of the log file, and copy files to other locations. These features enable you to easily monitor the audit log file growth and control its rotation (automatically based on the defined file size threshold, or manually by a on-demand command).

The available actions include the following:

  1. copy

    This command copies the audit log specified by --audit-log-name to the destination path specified by --copy-to. The --remote-login option can be used to copy log files from a remote location. Note: the destination path must be locally accessible by the current user.

  2. policy

    The policy command is used to change the audit logging policy. The accepted values are the following, which are set using the --value option.

    Note

    The --server option is also required to execute this command.

    • ALL: log all events

    • NONE: log nothing

    • LOGINS: only log login events

    • QUERIES: only log query events

    • DEFAULT: sets the default log policy

  3. rotate_on_size

    This command sets the file size threshold for automatic rotation of the audit log (the audit_log_rotate_on_size variable). The value is set using the --value option, and must be in the range (0, 4294967295). This command also requires the --server option to be specified. Note: if the variable is set with a value that is not a multiple of 4096, then it is truncated to the nearest multiple.

  4. rotate

    This command is used to perform an on-demand audit log rotation, and only requires the --server option to be passed. Note: this command has no effect if the audit log file size is smaller than 4096, which is the minimum value allowed that is greater than 0 for the audit_log_rotate_on_size variable variable).

OPTIONS

mysqlauditadmin accepts the following command-line options:

NOTES

This utility is available as of MySQL Utilities 1.2.0.

This utility can only be applied to servers with the audit log plugin enabled. And the audit log plugin is available as of MySQL Server versions 5.5.28 and 5.6.10.

This utility requires Python version 2.6 or higher, but does not support Python 3.

The path to the MySQL client tools should be included in the PATH environment variable in order to use the authentication mechanism with login-paths. This will allow the utility to use the my_print_defaults tools, which is required to read the login-path values from the login configuration file (.mylogin.cnf). This feature exists as of MySQL Server 5.6.6, see mysql_config_editor — MySQL Configuration Utility.

LIMITATIONS

The --remote-login option is not supported on Microsoft Windows platforms. For Microsoft Windows, use UNC paths and perform a local copy operation, omitting the --remote-login option.

EXAMPLES

To display the audit log system variables, run the following command:


$ mysqlauditadmin --show-options --server=root@localhost:3310

  #
  # Audit Log Variables and Options
  #
  +---------------------------+---------------+
  | Variable_name             | Value         |
  +---------------------------+---------------+
  | audit_log_buffer_size     | 1048576       |
  | audit_log_file            | audit.log     |
  | audit_log_flush           | OFF           |
  | audit_log_policy          | ALL           |
  | audit_log_rotate_on_size  | 0             |
  | audit_log_strategy        | ASYNCHRONOUS  |
  +---------------------------+---------------+

To perform a (manual) rotation of the audit log file, use the following command:


shell> mysqlauditadmin --server=root@localhost:3310 rotate

#
# Executing ROTATE command.
#

To display the audit log file statistics, run the following command:


shell> mysqlauditadmin --file-stats --audit-log-name=../SERVER/data/audit.log

  +------------------------------+--------+---------------------------+---------------------------+
  | File                         | Size   | Created                   | Last Modified             |
  +------------------------------+--------+---------------------------+---------------------------+
  | audit.log                    | 3258   | Wed Sep 26 11:07:43 2012  | Wed Sep 26 11:07:43 2012  |
  | audit.log.13486539046497235  | 47317  | Wed Sep 26 11:05:04 2012  | Wed Sep 26 11:05:04 2012  |
  +------------------------------+--------+---------------------------+---------------------------+

To change the audit log policy to log only query events, and show the system variables before and after the execution of the policy command, use the following command:


shell> mysqlauditadmin --show-options --server=root@localhost:3310 policy \ 
    --value=QUERIES

  #
  # Showing options before command.
  #
  # Audit Log Variables and Options
  #
  +---------------------------+---------------+
  | Variable_name             | Value         |
  +---------------------------+---------------+
  | audit_log_buffer_size     | 1048576       |
  | audit_log_file            | audit.log     |
  | audit_log_flush           | OFF           |
  | audit_log_policy          | ALL           |
  | audit_log_rotate_on_size  | 0             |
  | audit_log_strategy        | ASYNCHRONOUS  |
  +---------------------------+---------------+
  
  #
  # Executing POLICY command.
  #
  
  #
  # Showing options after command.
  #
  # Audit Log Variables and Options
  #
  +---------------------------+---------------+
  | Variable_name             | Value         |
  +---------------------------+---------------+
  | audit_log_buffer_size     | 1048576       |
  | audit_log_file            | audit.log     |
  | audit_log_flush           | OFF           |
  | audit_log_policy          | QUERIES       |
  | audit_log_rotate_on_size  | 0             |
  | audit_log_strategy        | ASYNCHRONOUS  |
  +---------------------------+---------------+

To change the audit log automatic file rotation size to 32535, and show the system variables before and after the execution of the rotate_on_size command, use the following command. (Notice that the value set is actually 28672 because the specified rotate_on_size value is truncated to a multiple of 4096):


shell> mysqlauditadmin --show-options --server=root@localhost:3310 rotate_on_size \
     --value=32535

  #
  # Showing options before command.
  #
  # Audit Log Variables and Options
  #
  +---------------------------+---------------+
  | Variable_name             | Value         |
  +---------------------------+---------------+
  | audit_log_buffer_size     | 1048576       |
  | audit_log_file            | audit.log     |
  | audit_log_flush           | OFF           |
  | audit_log_policy          | ALL           |
  | audit_log_rotate_on_size  | 0             |
  | audit_log_strategy        | ASYNCHRONOUS  |
  +---------------------------+---------------+
  
  #
  # Executing ROTATE_ON_SIZE command.
  #
  
  #
  # Showing options after command.
  #
  # Audit Log Variables and Options
  #
  +---------------------------+---------------+
  | Variable_name             | Value         |
  +---------------------------+---------------+
  | audit_log_buffer_size     | 1048576       |
  | audit_log_file            | audit.log     |
  | audit_log_flush           | OFF           |
  | audit_log_policy          | ALL           |
  | audit_log_rotate_on_size  | 28672         |
  | audit_log_strategy        | ASYNCHRONOUS  |
  +---------------------------+---------------+ 

To perform a copy of a audit log file to another location, use the following command:


shell> mysqlauditadmin --audit-log-name=../SERVER/data/audit.log.13486539046497235 \
     copy --copy-to=/BACKUP/Audit_Logs

To copy a audit log file from a remote server/location to the current location (user password will be prompted), use the following command:


shell> mysqlauditadmin --audit-log-name=audit.log.13486539046497235 \
     copy --remote-login=user:host --copy-to=.

PERMISSIONS REQUIRED

The user must have permissions to read the audit log on disk and write the file to the remove location.