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The following is the NTP configuration.
My server is a physical system, not a virtual machine.
The following ntp-4.2.2p1-15.el5.centos rpm I am using.

tinker panic 0
restrict default kod nomodify notrap nopeer noquery
restrict 127.0.0.1
server 0.pool.ntp.org
#server  127.127.1.0     # local clock
#fudge   127.127.1.0 stratum 10
driftfile /var/lib/ntp/drift
keys /etc/ntp/keys

The intention of this configuration is to have a common /etc/ntp.conf for my physical machine and for Virtual Machine.

My server act as a NTP client not as a NTP server. Is there any disadvantage for not using the undisciplined Local Clock on physical machine?

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migrated from stackoverflow.com Feb 7 '13 at 7:04

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Let me simplify my question: Is it must to have a local clock as a server in the ntp.conf when we are acting as a NTP client? what is the disadvantage if we don't configure the local clock config? –  Sampath Chunduri Feb 6 '13 at 3:54
    
You should have more than one server. –  Martin Schröder Feb 7 '13 at 15:10

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