windows 访问 CentOS 的防火墙及其 网关开放

1.防火墙开放端口

firewall-cmd --zone=public --add-port=8848/tcp --permanent

 

firewall-cmd --list-ports

 

 

 

 

开放centOS 网关，远程连接

grant all privileges on *.* to 'root'@'192.168.128.1' identified by 'root' with grant option;

 

 

开放docker容器网关，使得运行的docker连接linux数据库mysql

grant all privileges on *.* to 'root'@'172.17.0.1' identified by 'root' with grant option;

 

开放所有端口远程连接mysql

 grant all privileges on *.* to 'root'@'%' identified by 'root' with grant option;

 

mysql赋权操作：

GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY '123456' WITH GRANT OPTION;

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flush privileges;
GRANT：赋权命令
ALL PRIVILEGES：当前用户的所有权限
ON：介词
*.*：当前用户对所有数据库和表的相应操作权限
TO：介词
‘root’@’%’：权限赋给root用户，所有ip都能连接
IDENTIFIED BY ‘123456’：连接时输入密码，密码为123456
WITH GRANT OPTION：允许级联赋权

20200901:
将GRANT语句通过代码块包起来