navicat mysql remote connection is not a solution

Find solutions from the following areas

 

1 View mysql port 

　　show global variables like 'port'; see the port is not 3306

2 Check the user whether to allow remote login

　　use mysql;

　　select user,host from user;

　　Return results or to view the specified user is locahost%, it must be allowed to connect remotely%

　　% If not already root execute the following command as an example the user name root password 123

　　GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY '123' WITH GRANT OPTION;

　　flush privileges；

3 View 3306 port is not open  

　　1 View command

　　　　netstat -talnp

　　2 open 3306 port command

　　　　iptables -A INPUT -p tcp --dport 3306 -j ACCEPT

　　3 If the above does not work, close firewalld  

　　　　systemctl stop firewalld