Information about the NTP issue continued. I have run a few commands to try and find out why ntp is not working correctly and the output of these commands are below. Could someone tell me anything that jumps out at them as the potential issue i currently have. P.s I have set it up so we have two servers to look at incase one is not available. It seems to be polling OK but just does not change the time on the ntp client for some reason. Command = ntptrace -r 5 -d -v IP DoTransmit(IP) DoTransmit to IP ReceiveBuf(IP, IP) server IP, port 123 stratum 2, precision -6, leap 00 refid server1_name delay 0.00029, dispersion 0.00000 offset -0.010315 rootdelay 0.03125, rootdispersion 10.99594, synch dist 11.01157 reference time: ca655261.636499dd Thu, Aug 9 2007 9:44:17.388 originate timestamp: ca65541f.5343d541 Thu, Aug 9 2007 9:51:43.325 transmit timestamp: ca65541f.55de0503 Thu, Aug 9 2007 9:51:43.335 DoTransmit(IP) DoTransmit to IP ReceiveBuf(IP, IP) server IP, port 123 stratum 1, precision -6, leap 00 refid 'LOCL' delay 0.00011, dispersion 0.00000 offset -0.007780 rootdelay 0.00000, rootdispersion 10.93810, synch dist 10.93810 reference time: ca641cc8.fbef9db2 Wed, Aug 8 2007 11:43:20.984 originate timestamp: ca65541f.54000000 Thu, Aug 9 2007 9:51:43.328 transmit timestamp: ca65541f.55f9f01b Thu, Aug 9 2007 9:51:43.335 Command ntpq -p remote refid st t when poll reach delay offset jitter ============================================================================== Server1_name .LOCL. 1 u 3 64 377 0.199 -12.229 0.008 Server2_name Server1_name 2 u 1 64 377 0.246 -15.424 0.421 Regards Andrew Bridgeman ----- Forwarded by Andrew Bridgeman/UK/Corus on 09/08/2007 09:49 ----- |+-----------+----------------------------------------------| || Andrew | | || Bridgema| To: redhat-list@xxxxxxxxxx | || n | cc: | || | Subject: NTP issue Continued| || 08/08/20| | || 07 09:46| | || | | |+-----------+----------------------------------------------| 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
