Detailed explanation of MySQL remote connection method in Linux server

The msyql database is installed on the Linux server. It can be accessed when accessed locally, but when I want to access it remotely, I cannot access it. After querying the information, I found that by default, MySQL under Linux only has local access after the installation is completed. permissions, there is no remote access permission. You need to set access permissions for the specified user to remotely access the database.

Preface

Learn MySQL to reorganize previous non-MK records

Description

If it is not enabled, an error will be reported when connecting to the database: 2003-can't connect to MYSQL

Method/step

•First step

Connect to the Linux system remotely and ensure that the MySQL database has been installed on the Linux system. Log in to the database.

mysql -u$user -p $pwd

##•Step 2

Create a user for remote connection

GRANT ALL PRIVILEGES ON *.* TO '$username'@'%' IDENTIFIED BY '$password' WITH GRANT OPTION;

$username represents the user name, % means that all computers can connect, you can also set an IP address to run the connection, $password means the password

•Step 3

Execute flush privileges; command immediately Valid

FLUSH PRIVILEGES;

•Step 4

Query the user of the database

SELECT DISTINCT CONCAT('User: ''',user,'''@''',host,''';') AS query FROM mysql.user;

• Step 5

Then open

vim /etc/mysql/my.cnf

set bind-address = 127.0.0.1

Set to

bind-address = 0.0.0.0 (device address)

Restart

/etc/init.d/mysql restart

•View MYsql global port (default is 3306)

#View port number

show global variables like 'port';

The configuration has been completed so far

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