Host is not allowed to connect to this MySQL server

解决方法：

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[root@GYQ-Prod-Zabbix ~]# mysql -u root -p Enter password: Welcome to the MariaDB monitor.  Commands end with ; or \g. Your MariaDB connection id is 3911752 Server version: 5.5.60-MariaDB MariaDB Server   Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others.   Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.   MariaDB [(none)]> GRANT ALL PRIVILEGES ON *.* TO 'zabbix'@'%' IDENTIFIED BY 'zabbix' WITH GRANT OPTION; Query OK, 0 rows affected (0.02 sec)   MariaDB [(none)]> FLUSH   PRIVILEGES; Query OK, 0 rows affected (0.04 sec)