How to solve MySQL connection error 1130?

How to deal with MySQL connection error 1130?

MySQL is a very commonly used relational database management system, but during use, you sometimes encounter various problems. One of them is MySQL connection error 1130. When this error occurs, we will not be able to connect to the MySQL database and perform database operations. So, how should we deal with this problem? This article will detail several common solutions.

First of all, we need to understand the cause of MySQL connection error 1130. This error is usually caused by the database server rejecting our connection request. This may be due to one of the following reasons:

1. Wrong host address: When we connect to MySQL, we need to make sure we are using the correct host address. Sometimes we may enter the host address incorrectly, causing the connection to fail.
2. Username error: When connecting to MySQL, we need to enter the correct username and password. If the username is wrong, the server will not be able to identify us, causing the connection to fail.
3. Permission problem: MySQL has set strict access control. If we do not have sufficient permissions to connect to the database, connection error 1130 will be triggered.

Next, let’s see how to solve this problem step by step.

Step 1: Check the host address

First, we need to make sure we are using the correct host address. If we are not sure what the host address is, we can find out by executing the following command in the terminal or command prompt:

ping 主机名

This command will return the IP address of the host. Make sure the IP address we use when connecting to MySQL is correct.

Step 2: Check the username and password

After confirming the host address, we need to check whether the username and password we use are correct. The username and password can be verified by logging into the MySQL server and executing the following command:

mysql -u 用户名 -p

The system will ask us to enter the password. After entering the password, if the login is successful, it means that the username and password are correct. If the login fails, it may be that the username or password we entered is incorrect and we need to check it carefully and try again.

Step 3: Check user permissions

If the above two steps do not solve the problem, then the connection error 1130 may be caused by permission issues. We can check and adjust user permissions by following the steps below.

1. Log in to the MySQL server.
2. Execute the following command to view the current user permissions:

SHOW GRANTS FOR 用户名;

3. Check the returned results to ensure that we have sufficient permissions to connect to the database. If the permissions are insufficient, we can try to re-grant the user the correct permissions.

GRANT ALL PRIVILEGES ON *.* TO '用户名'@'localhost' IDENTIFIED BY '密码' WITH GRANT OPTION;

In the above command, we replaced "username" with the username we want to grant permissions to and "password" with the user's password. After the execution is completed, try to connect to MySQL again to see if the connection error 1130 problem can be successfully solved.

In addition to the above methods, there are some other solutions, such as:

1. Check the firewall settings: Sometimes the firewall settings may block MySQL connections. We can check the firewall settings and make sure MySQL connections are allowed.
2. Check if the MySQL service is running: If the MySQL service is not started, we will not be able to connect to the database. We can check the status of the MySQL service through the service manager or the command line and start it.

To sum up, dealing with MySQL connection error 1130 requires us to gradually eliminate possible causes and take appropriate measures to solve the problem. First, we should check if the host address, username and password are correct. If you still can't connect, it may be due to permissions issues or other reasons. We can check user permissions, adjust firewall settings, make sure the MySQL service is running, etc. to solve the problem. I hope the above method will help solve the MySQL connection error 1130 problem.

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