laravel new blog

php artisan serve

php artisan migrate

IlluminateDatabaseQueryException  : SQLSTATE[HY000] [2002] Connection refused (SQL: select * from information_schema.tables where table_schema = blog and table_name = migrations)

  at /home/morilon/php_proj/blog/vendor/laravel/framework/src/Illuminate/Database/Connection.php:664
    660|         // If an exception occurs when attempting to run a query, we'll format the error
    661|         // message to include the bindings with SQL, which will make this exception a
    662|         // lot more helpful to the developer instead of just the database's errors.
    663|         catch (Exception $e) {
  > 664|             throw new QueryException(
    665|                 $query, $this->prepareBindings($bindings), $e
    666|             );
    667|         }
    668|

  Exception trace:

  1   PDOException::("SQLSTATE[HY000] [2002] Connection refused")
      /home/morilon/php_proj/blog/vendor/laravel/framework/src/Illuminate/Database/Connectors/Connector.php:68

  2   PDO::__construct("mysql:host=127.0.0.1;port=3306;dbname=blog", "root", "", [])
      /home/morilon/php_proj/blog/vendor/laravel/framework/src/Illuminate/Database/Connectors/Connector.php:68

  Please use the argument -v to see more details.