On 2019-06-20, Chris <xxx.syseng....@gfsys.co.uk> wrote: > Have a couple of surplus gps based ntp servers that have been > used for time sync in the lab for few years. They are on a UPS > with several hours backup and seems like a good idea to use > them to contribute to the ntp global network. > > Don't want to expose them directly to the net, so plan to > isolate them, either via a Solaris zone or > FreeBSD jail. This will have 2 network interfaces, ntp subnet > facing and the other to internet via the firewall. The ntp > side will run ntp client, internet side runs ntp server. > Will either isolation solution have direct access to the computer CPU? The GPS clock will need the ability to directly adjust the frequency of the CPU to achieve expected results for a Stratum 1 server.
> Question is, will such an intermediate machine degrade the > time served, or will it still be reported as a stratum 1 > source. Seems a waste otherwise. > > ntpq -p currently reports: > > remote refid st t when poll reach delay offset disp >============================================================= > *chronos .GPS. 1 u 23 64 377 0.18 -0.018 0.03 > +nts100 .GPS. 1 u 21 64 377 0.46 -0.071 0.08 > That looks like a good billboard and should make a good S1 time server if you can resolve your concerns about making it available as an internet host. Tom -- Public Keys: PGP KeyID = 0x5F22FDC1 GnuPG KeyID = 0x620836CF _______________________________________________ questions mailing list questions@lists.ntp.org http://lists.ntp.org/listinfo/questions
