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I have a Desk system in which I am trying to connect to a database that is on the server. But every time I try to connect the following error:
java.sql.Sqlexception: null, message from server: "Host 'nco-inf-04.cop.com.br' is not allowed to connect to this Mysql server"
How I release permission to all users who will have the system installed?
Connection class:
public class Conexao {
    private static final String USUARIO = "root";
    private static final String SENHA = "";
    private static final String URL = "jdbc:mysql://10.70.111.24:3306/db_prestadores";
    private static final String DRIVER = "com.mysql.jdbc.Driver";
    // Conectar ao banco
    public static Connection abrir() throws Exception {
        // Registrar o driver
        Class.forName(DRIVER);
        // Capturar a conexão
        Connection conn = DriverManager.getConnection(URL, USUARIO, SENHA);
        // Retorna a conexao aberta
        return conn;
    }
}
Workbench:


Having this database located on a server, it has already happened to me once, some firewall or connection rule does not allow my entry. Take a look at your rules.
– Ketlin