mysqladmin: [Warning] Using a password on the command line interface can be insecure.

mysqladmin是MySQL数据库管理工具的一部分，它提供了一组命令行接口，用于执行各种管理任务。通过mysqladmin，您可以执行诸如创建、删除和修改数据库、用户管理、服务器状态监控等操作。

然而，在使用mysqladmin时，需要注意一个警告信息：“[Warning] Using a password on the command line interface can be insecure.”这是因为在命令行界面上直接输入密码可能存在安全风险。因为密码会以明文形式显示在命令行历史记录中，其他人可能会访问到这些记录并获取到密码信息。

为了避免这个安全风险，建议您使用其他方式来提供密码，例如使用配置文件或者环境变量。这样可以确保密码不会被明文显示在命令行中。

相关问题

mysql: [Warning] Using a password on the command line interface can be insecure. Value 297#!

这个警告是由于在命令行中使用密码可能会导致安全问题而引起的。如果您使用的是zabbix自带的mysql模板，则可以通过修改模板来解决此问题。您需要将模板中的mysql监控项更改为使用zabbix自带的mysql监控脚本，而不是使用mysqladmin命令。这样，您就可以避免在命令行中使用密码，从而避免出现警告信息。

如果您不想更改模板，也可以通过在命令行中使用--password选项来避免出现警告信息。例如，您可以使用以下命令来获取mysql的Uptime值：

./zabbix_get -s xx.xx.xx.xx -p 10050 -k mysql.status[Uptime] --password=yourpassword

请注意，这种方法可能会导致密码泄露的风险，因此不建议在生产环境中使用。

--相关问题--:
1. 如何在zabbix中监控MySQL？
2. 如何在命令行中安全地使用密码？
3. 如何避免在使用mysqladmin

mysql: [Warning] Using a password on the command line interface can be insecure. ERROR 1049 (42000): Unknown database 'parking_guidance'

The warning message you're seeing is a standard security concern when using MySQL through a command-line interface, such as `mysql` or `mysqladmin`. It's advising that providing a password directly on the command line can be less secure because anyone monitoring your terminal session could potentially see it. For better protection, it's recommended to use tools like `mysql_secure_installation` or configuration files with hashed passwords.

The error message `ERROR 1049 (42000): Unknown database 'parking_guidance'` indicates that MySQL cannot find the database you are trying to access. Here's what you can do to resolve this issue:

1. **Check if the database exists:** Use the `SHOW DATABASES;` command to ensure that the 'parking_guidance' database is indeed not present in your current setup.

2. **Create the database:** If it doesn't exist, run the following command to create it:

   CREATE DATABASE parking_guidance;

3. **Grant privileges:** If you have not already done so, you'll need to grant privileges to your user account to access this new database. For example:

   GRANT ALL PRIVILEGES ON parking_guidance.* TO 'your_username'@'localhost' IDENTIFIED BY 'your_password';

Replace 'your_username' and 'your_password' with your actual MySQL credentials.

4. **Switch to the new database:** After granting privileges, use `USE parking_guidance;` to switch to the newly created database.

5. **Confirm connection:** Double-check that you can connect to the 'parking_guidance' database without any errors by running a simple query.

If you've already created the database and granted privileges, check for typos in the database name or user credentials. Make sure they match exactly as you specified them.