Solve the problem of Navicat connecting to the database

One 、 Check whether the port is 3306

dos Window input command ：mysql -uroot -p

Then the input ：show global variables like 'port';

Two 、 Whether to add the port number to the firewall

2.1 Inbound rules -- Double click new rule

 2.2 Enter the port number ：3306

 

 

 

  3、 ... and 、 appear 1130 error

  resolvent ：

3.1  open dos Command window , Sign in ：mysql -uroot -p

3.2  Input use mysql ;

3.3  see mysql User information of the service （ user name , Accessible ip） Input ：select user, host from user;

3.4 user  representative mysql Service accessible users ,host Run on behalf of the user in the specified ip Visit （localhost, Indicating the machine ） modify root Users are allowed to access... On the task machine update user set host='%' where user='root';

3.5  Then change the remote connection settings command ：GRANT ALL PRIVILEGES ON . TO ‘root’@’%’ IDENTIFIED BY ‘root’ WITH GRANT OPTION;

3.6  Refresh user rights , send root The newly set permissions can take effect flush   privileges;

 3.7 Successful connection