I am still having problems getting 40 redhat machines to use ntp and synchronise with our Windows 2003 Cluster. I have tried a couple of things suggested by people but have had no luck in fixing the issue. It seems that when I put either the IP of the cluster, the name of the cluster or the fully qualified name of the cluster in the config files the ntp service communicates with the Windows cluster straight away and all the machines are synchronised OK. The problem comes when i leave them afterwards for an hour or a day or even a week and look back at the time on the machines and they are all different. I read on the net that the communication used with ntp is UDP over port 123 and was wondering if i have some kind of polling issue after the initial start-up of ntp. Does anyone know more detail on how the ntp part works. i.e How often does is poll the cluster server for the time or is there a way of checking the communication on that port is working. Any help on this would be much appreciated. Regards Andrew Bridgeman ********************************************************************** This transmission is confidential and must not be used or disclosed by anyone other than the intended recipient. Neither Corus Group Limited nor any of its subsidiaries can accept any responsibility for any use or misuse of the transmission by anyone. For address and company registration details of certain entities within the Corus group of companies, please visit http://www.corusgroup.com/entities ********************************************************************** -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list