安装mysql出现the password do not match怎么解决

如果在安装 MySQL 过程中出现了 "the password do not match"，通常是因为您在输入 MySQL 根用户的密码时，输入了错误的密码。

如果您无法记住 MySQL 根用户的密码，可以重置它。以下是重置 MySQL 根用户密码的步骤：

1. 停止 MySQL 服务。

2. 打开终端并使用以下命令启动 MySQL 不加载 grant tables：

   sudo mysqld_safe --skip-grant-tables --skip-networking &

3. 在终端中使用以下命令连接到 MySQL 服务器：

   mysql -uroot

4. 在 MySQL 终端中，使用以下命令更新 MySQL 根用户的密码：

   UPDATE mysql.user SET authentication_string=PASSWORD('new_password') WHERE User='root';

（将 "new_password" 替换为您想要设置的新密码）

5. 使用以下命令刷新 MySQL 权限：

   FLUSH PRIVILEGES;

6. 退出 MySQL 终端并停止 MySQL 服务。

7. 重新启动 MySQL 服务并使用新密码登录。

希望这可以帮助您解决问题。

相关问题

<?php if( isset( $_GET[ 'Change' ] ) ) { // Checks to see where the request came from if( eregi( $_SERVER[ 'SERVER_NAME' ], $_SERVER[ 'HTTP_REFERER' ] ) ) { // Get input $pass_new = $_GET[ 'password_new' ]; $pass_conf = $_GET[ 'password_conf' ]; // Do the passwords match? if( $pass_new == $pass_conf ) { // They do! $pass_new = mysql_real_escape_string( $pass_new ); $pass_new = md5( $pass_new ); // Update the database $insert = "UPDATE `users` SET password = '$pass_new' WHERE user = '" . dvwaCurrentUser() . "';"; $result = mysql_query( $insert ) or die( '<pre>' . mysql_error() . '</pre>' ); // Feedback for the user $html .= "<pre>Password Changed.</pre>"; } else { // Issue with passwords matching $html .= "<pre>Passwords did not match.</pre>"; } } else { // Didn't come from a trusted source $html .= "<pre>That request didn't look correct.</pre>"; } mysql_close(); } ?>分析存在的漏洞是什么？针对这段代码，需要采取哪些措施来防范该漏洞？

这段代码存在以下漏洞：

1. 使用了被废弃的 eregi 函数，可能会导致正则表达式注入漏洞。
2. 没有对输入进行任何验证或过滤，可能会导致 SQL 注入漏洞。
3. 没有对密码进行任何加密，只是简单地使用了 md5 散列，不足以保障密码的安全性。

为了防范这些漏洞，可以采取以下措施：

1. 使用 preg_match 函数替代 eregi 函数，并使用正则表达式进行输入验证。
2. 使用参数化查询或预处理语句来防止 SQL 注入漏洞。
3. 使用更安全的密码散列算法，如 bcrypt 或 PBKDF2，并添加盐值以增加密码的安全性。

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.