Solve the problem that the remote host cannot connect to the MySQL database

Problem description

Installed on this machine mysql After the service side , There is no problem with the client access of this machine , however , Due to the need of the project , Today, it is used on another host navicat visit mysql On the server side , An error is as follows ：
Through the command mysql -h192.168.3.22 -uroot -p The visit also reported such errors .

Cause analysis

mysql By default, only local clients are allowed to access , Which does not allow remote client access , If you want to turn on , Need modification mysql/user In the table Host List from localhost by %.

Solution

modify mysql On the server mysql library /user In the table Host Column , take localhost Change it to % that will do . As shown in the figure below .

such , Access through the remote host again mysql The server can be successfully connected .