Solution to 2003 when connecting to navicat:
(1) Check which ports are open netstat -anp
127.0.0.1:3306 -- means that the mysql database can only be accessed locally;
(2) We put 127.0.0.1: 3306 is changed to 0.0.0.0:3306, so that all users can remotely access the mysql database;
Open/etc/mysql/mysql.cnf Findbind- address= 127.0.0.1 Change it to bind-address= 0.0.0.0
(mysql5.7.24 version, the configuration file directory is: /etc/mysql/ mysql.conf.d/mysqld.cnf)
Restart takes effect;
Command:service mysql restart
(3) After executing the second step and testing to connect to mysql, an error will still be reported: "1130 is not allowed to connect to this MySql server". This is because permissions are not enabled.
Execute under the linux server:
1.mysql -u root -pPress Enter, enter the password and press Enter, log in;
2. Authorize remote user login
1. Authorize all root users:
GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY 'root user Password' WITH GRANT OPTION;
2. Authorize the root user of the specified IP:
GRANT ALL PRIVILEGES ON *.* TO root@'specified IP address' IDENTIFIED BY 'root user password' WITH GRANT OPTION;
3. You can also authorize the specified table, which is not so troublesome. Anyway, you can use it locally.
3. Reload the authorization table: FLUSH PRIVILEGES;
4.exit ExitMysql
(4) Test the connection and the connection is successful.
Recommended tutorial: "navicat tutorial"
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