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NTP Server issue

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Operating Systems Linux Red Hat NTP Server issue
# 8  
Old 09-22-2013
I mean the NTP server 192.168.238.140 is misconfigured. Check its ntp.conf!
# 9  
Old 09-22-2013
Quote:
Originally Posted by MadeInGermany
I mean the NTP server 192.168.238.140 is misconfigured. Check its ntp.conf!

What should I change in the ntp.conf of the NTP server to make it work?!

Again, this is my ntp.conf file's contain:

Code:
restrict 192.168.238.0 mask 255.255.255.0 nomodify notrap
server 127.127.0.1

# 10  
Old 09-22-2013
That looks okay.
Add an unrestricted access from localhost
Code:
restrict 127.0.0.1

restart ntpd, and after a minute check with
Code:
ntpq -np

# 11  
Old 09-22-2013
Now I got this when I implemented ntpq -np:
Code:
No association ID's returned

And I added already
Code:
restrict 127.0.0.1

When I try from other linux client #ntpdate 192.168.238.140 its return with
Code:
20 Sep 11:59:07 ntpdate[5015]: no server suitable for synchronization found

!!

---------- Post updated at 05:51 AM ---------- Previous update was at 05:28 AM ----------

And when I change the:
restrict 127.127.0.1

to

restrict 127.0.0.1

It gives me the following when I execute ntpq -np:

Code:
[root@host1 ~]# ntpq -np
     remote           refid      st t when poll reach   delay   offset  jitter
==============================================================================
 127.0.0.1       .INIT.          16 l    -   64    0    0.000    0.000   0.000


I'm sort of lost now!
# 12  
Old 09-22-2013
Any ntp messages in /var/log/messages?
Is this a virtual system (instance on vmware, xen, virtual box)? Then the HW clock is problematic.
# 13  
Old 09-23-2013
Yes sir! The NTP server is running on VMware! and the other clients is on VMware too. Is that the reason behind this issue? and if its, what is the solution for such cases.
# 14  
Old 09-23-2013
Yes I think this is your problem.
Unfortunately I don't know if there is possibility to have a VMware guest act as an NTP server.
Google for: ntp server on vmware guest
The safest metod is to use another server with real hardware.
The VMware ESX server itself can act as an NTP server.
Google for: ntp server on vmware ESX
This User Gave Thanks to MadeInGermany For This Post:
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