SHOW VARIABLES 
WHERE Variable_name IN (
  'max_connections',
  'table_open_cache',
  'innodb_buffer_pool_size',
  'innodb_redo_log_capacity',
  'innodb_flush_log_at_trx_commit',
  'sync_binlog',
  'log_bin_trust_function_creators',
  'authentication_policy',
  'skip_name_resolve'
);