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How can I tell ntpq to output servers other than stratum 2?

Currently ntpq -p prints this. But what I need is at least one stratum 1 server in the output.

I've read here and here. I've also tried adding a stratum 1 server to the /etc/ntp.conf file, but that did not change the output. Any suggestions are appreciated.

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  • Is there a particular reason you need to sync to a stratum 1 server? NTP is designed to stay within a few milliseconds of "true" time, even after that time filters through numerous strata. The S1 servers tend to be heavily loaded, so it's often more polite to query S2 or S3 servers (e.g. the NTP pool) if you can. Commented Nov 20, 2015 at 18:32

1 Answer 1

Reset to default
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If you're actually sync'ing to a stratum one server, it'll happily print it out:

anthony@Watt:~$ ntpq -p remote refid st t when poll reach delay offset jitter ============================================================================== -xen1.rack911.co 66.228.59.187 3 u 737 1024 377 81.085 -2.838 1.015 +clock.xmission. .GPS. 1 u 512 1024 377 76.454 -6.912 10.883 +time-c.nist.gov .ACTS. 1 u 169 1024 377 9.470 1.294 29.911 *clock1.alb1.ino .CDMA. 1 u 980 1024 377 29.739 -4.838 11.728

Make sure to restart ntp after modifying its configuration file. I don't even see level1e.cs.unc.edu in your output at all. (BTW: The server list above is from using the NTP Pool, it's not hand-configured.)

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  • Thank you so much, I'd just forgotten to restart the service, so /etc/init.d/ntp restart worked. Commented Apr 4, 2015 at 6:34

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