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Mysql：skip-name-reslove

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  • skip_name_resolve

    PropertyValue
    Command-Line Format --skip-name-resolve[={OFF|ON}]
    System Variable skip_name_resolve
    Scope Global
    Dynamic No
    set_var Hint Applies No
    Type Boolean
    Default Value OFF

    Whether to resolve host names when checking client connections. If this variable is OFF, mysqld resolves host names when checking client connections. If it is ON, mysqld uses only IP numbers; in this case, all Host column values in the grant tables must be IP addresses. See section?8.12.4.2, “dns lookup optimization and the host cache”.

    Depending on the network configuration of your system and the Host values for your accounts, clients may need to connect using an explicit --host option, such as --host=127.0.0.1 or --host=::1.

    An attempt to connect to the host 127.0.0.1 normally resolves to the localhost account. However, this fails if the server is run with skip_name_resolve enabled. If you plan to do that, make sure an account exists that can accept a connection. For example, to be able to connect as root using --host=127.0.0.1 or --host=::1, create these accounts:

    CREATE USER 'root'@'127.0.0.1' IDENTIFIED BY 'root-password';
CREATE USER 'root'@'::1' IDENTIFIED BY 'root-password';

 

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