安装mysql出现the password do not match怎么解决
时间: 2023-12-10 19:05:48 浏览: 451
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
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.
<?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(); } ?> 查看下面的代码,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 `eregi()` 函数来检查请求来源是否合法,但该函数已经在 PHP 7.0 中被废弃。应该使用 `preg_match()` 函数或其他替代函数来实现该功能。
2. 没有对输入的新密码和确认密码进行有效性检查和过滤,可能导致 SQL 注入攻击。
3. 使用了 `mysql_real_escape_string()` 函数来过滤字符串,但该函数已经在 PHP 7.0 中被废弃。应该使用 `mysqli_real_escape_string()` 或 PDO 的预处理语句来过滤字符串。
4. 该代码使用了过时的 `mysql_` 函数来操作数据库,容易受到 SQL 注入等攻击。
为了防范该漏洞,应该采取以下措施:
1. 使用更安全的函数来检查请求来源,如 `preg_match()` 函数。
2. 对用户输入的新密码和确认密码进行有效性检查和过滤,如去除空格,限制长度等。同时,使用 PDO 或 mysqli 的预处理语句来防止 SQL 注入攻击。
3. 使用 `mysqli_real_escape_string()` 或 PDO 的预处理语句来过滤字符串。
4. 不要使用过时的 `mysql_` 函数来操作数据库,改用 PDO 或 mysqli 函数。