mysql domain lookup !

postavil MySQL-server-4.0.18-0kogda iz php conectiusi kak root@127.0.0.1 vse ok !nu a kogda root@localhost to vidaiot error :Warning: mysql_connect(): Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2) in /home/host/http/www/mysql.php on line 34can't connect !etovo file'a "tmp/mysql.sock" u menea v papke /tmp netu !