数据库授权magedu用户，允许192.168.1.0/24网段可以连接mysql

 

MariaDB [hellodb]> create user 'magedu'@'192.168.1.%' ;
Query OK, 0 rows affected (0.011 sec)
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MariaDB [hellodb]> grant all privileges on hellodb.* to 'magedu'@'192.168.1.%' ;
Query OK, 0 rows affected (0.001 sec)
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因没有设置密码，连接时空密码
[root@localhost ~]# mysql -umagedu -p
Enter password:
Welcome to the MariaDB monitor.  Commands end with ; or \g.
Your MariaDB connection id is 18
Server version: 10.4.21-MariaDB MariaDB Server
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Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others.
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Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
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MariaDB [(none)]>
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