Warning: mysql_connect(): Unknown MySQL Server Host 'dbal.chaiyo-aa.com' (0) in /export/sro/lib/sys_dblib.php on line 13

Can't connect to dbal.chaiyo-aa.com as sro

MySQL Error: Unknown MySQL Server Host 'dbal.chaiyo-aa.com' (0)
Notice: Undefined variable: CFG in /export/sro/lib/sys_dblib.php on line 17