Performs password guessing against Microsoft SQL Server (ms-sql). SYNTAX: userdb: The filename of an alternate username database. passdb: The filename of an alternate password database. mssql.timeout: How long to wait for SQL responses. This is a number followed by 'ms' for milliseconds, 's' for seconds, 'm' for minutes, or 'h' for hours. Default: '30s'. unpwdb.timelimit: The maximum amount of time that any iterator will run before stopping. The value is in seconds by default and you can follow it with 'ms', 's', 'm', or 'h' for milliseconds, seconds, minutes, or hours. For example, 'unpwdb.timelimit=30m' or 'unpwdb.timelimit=.5h' for 30 minutes. The default depends on the timing template level (see the module description). Use the value '0' to disable the time limit. unpwdb.userlimit: The maximum number of usernames 'usernames' will return (default unlimited). unpwdb.passlimit: The maximum number of passwords 'passwords' will return (default unlimited).