Hello, the dns problem was solved. all that happened was that 'named' failed on all dns servers and had to be restarted on each. Any pointers on why "named" stopped on all servers ? The log doesn't mention anything strange... Thanks, Tony Tony Gogoi - : send the line "unsubscribe linux-admin" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html