How to remote mysql

In today's Internet era, remote access to databases has become a common need, especially for users who need to process data on mobile devices. For MySQL, remote access can be achieved in many ways. This article will introduce you how to remotely connect to MySQL and provide several implementation methods.

1. Modify the MySQL configuration file

To connect to MySQL remotely, you first need to make the necessary settings on the MySQL server. Specifically, you need to change the MySQL configuration file and enable the option to allow remote access. The following are the steps:

1. Open the MySQL configuration file, located at "/etc/mysql/mysql.conf.d/mysqld.cnf".
2. Look for the bind_address option and comment it out or change it to 0.0.0.0 so that MySQL will allow remote access from any address.
3. Save and restart the MySQL service.

After completing the above steps, you can use local tools (such as MySQL Workbench) or remote tools (such as Navicat) to connect to the MySQL server.

2. Use SSH tunnel to connect to MySQL

SSH tunnel is a technology that establishes a secure encrypted tunnel between the local and remote servers. Using this technology, we can achieve remote access to MySQL through port forwarding without exposing the real IP and port of the MySQL server.

The following are the detailed steps:

1. Connect to the host of the MySQL server and use the following command to open the SSH tunnel:

ssh -fNgL 3307:127.0 .0.1:3306 user@remote_host

Among them, the -L parameter determines to map the local port 3306 of the MySQL server to the port 3307 of the host. user is the user name connected to the remote host, and remote_host is the IP address or domain name of the remote host.

2. In MySQL Workbench (or other MySQL clients), change the host address to 127.0.0.1, the port to 3307, and enter the username and password in the normal way to complete the connection.

3. Use web interface management tools

If you don’t want to use third-party applications or SSH tunnels, then you can consider using some MySQL management tools based on web interfaces, such as phpMyAdmin Or Adminer. These tools make it easy to connect to the MySQL server and manage it directly on the web interface.

The following are the steps to connect to MySQL using phpMyAdmin:

1. Install phpMyAdmin on the web server (can be installed through a package manager such as apt-get or yum).
2. Open phpMyAdmin, enter the IP address and login credentials of the MySQL server, and click Login.
3. Perform database and table operations as needed, such as creation, modification, and deletion.

4. Summary

Remote connection to MySQL may involve network security issues. Therefore, before allowing remote access, appropriate security settings must be made for MySQL to prevent illegal access. . Also, take care to ensure that the server you connect to is not a target for hackers. No matter which connection method is used, detailed configuration and testing are required to ensure a smooth and reliable connection.

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