[ntp:questions] NTP and VMware
Kennedy, Paul
P.Kennedy at fugro.com.au
Tue Aug 14 05:40:35 UTC 2012
Hi Ali,
when you state ' do not synchronize their times with the server', what
do you mean?
if you run 'ntpq -p' on the client side, you should see something like
this....
remote refid st t when poll reach delay offset
jitter
========================================================================
======
SHM(3) .XPPS. 0 l - 8 0 0.000 0.000
0.000
SHM(2) .XZDA. 0 l - 8 0 0.000 0.000
0.000
+172.23.21.221 .PPSE. 1 u 7 8 377 0.260 1.631
0.532
*172.23.21.9 .GPS. 1 u 8 8 377 0.443 1.386
0.448
172.23.21.244 .STEP. 16 u 4d 8 0 0.000 0.000
0.000
TD-GITCENTRAL 172.23.21.9 2 u 4 8 377 0.163 0.196
1.284
172.23.21.243 .PPSI. 1 u 7 8 377 0.198 1.976
0.864
The important part here (for now) is the reach to the server. if 377,
you have a good connection between the client and the server. Once
connection is proven, we can deal with the clock selection process.
regards
-----Original Message-----
From: questions-bounces+p.kennedy=fugro.com.au at lists.ntp.org
[mailto:questions-bounces+p.kennedy=fugro.com.au at lists.ntp.org] On
Behalf Of Ali Nikzad
Sent: Tuesday, 14 August 2012 12:35 PM
To: questions at lists.ntp.org
Subject: [ntp:questions] NTP and VMware
Hi,
I have a cluster which its computers are not connected to Internet. One
Linux based and five ESXi based servers which host virtual machines in a
vSphere cluster. I need time synchronization between the hosts. Since
ESXi supports NTP, I configured the Linux based node to serve as the NTP
server and the ESXi nodes as NTP clients.
I configured the server's ntp.conf as follows:
#192.168.2.10
driftfile /etc/ntp.drift
server 127.127.1.0
fudge 127.127.1.0 stratum 10
tos cohort 1 orphan 11
restrict source nomodify
restrict 192.168.2.0 mask 255.255.255.0 nomodify notrap
and the clients' ntp.conf file:
#192.168.2.X
driftfile /etc/ntp.drift
server 192.168.2.10
tos cohort 1 orphan 11
restrict source nomodify
restrict default kod nomodify notrap nopeer restrict 127.0.0.1
The problem is clients do not synchronize their times with the server.
What can be the cause of the problem?
Thank you,
Ali
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