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ShadyCraig 05-24-2010 07:37 AM

NTP config - how to prevent clients using my server?
Hello all,

I'm presently writing software to keep my system time from drifting, it uses an external clock device.

To verify it's accuracy I'm running ntpd as a server, and have another server monior the first as a client. This allows me to compare the offset with other 'valid' time servers.

The problem is that the monitoring client keeps synchronising with my development server. How can I configure either the dev. server or the client so that it's time won't be selected as a good time source?

The ntp.conf on the dev. server looks like:

server    # local clock
fudge    stratum 10

disable auth

driftfile /tmp/drift
broadcastdelay  0.008


ShadyCraig 05-24-2010 07:55 AM


After looking in the docs for the nth time I've found it, right after posting.

Add noselect to the server command on the client:


server noselect

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