On 01/02/15 14:08, Stephen John Smoogen wrote:

The ntp server needs to be able to talk to some server on the network to get time. The Fedora boxes might just be 'lucky' in keeping time if they have no access either.

ntpq -p on each of the hosts will see how they are keeping time.

Well it looks like SL-7 does not use ntp, it uses "chrony" instead and it apparently was not running, at least I had to systemctl restart chronyd|and then |systemctl enable chronyd to start it running. Then it began to show signs of life. Before that all the values reported were zero!

[root@box48 bobg]# chronyc sources
210 Number of sources = 4
MS Name/IP address         Stratum Poll Reach LastRx Last sample
===============================================================================
^+ clock.xmission.com 1 6 17 38 -522us[+2286us] +/- 312ms ^+ 422224.s.dedikuoti.lt 2 6 17 38 -20ms[ -17ms] +/- 403ms ^+ bindcat.fhsu.edu 2 6 17 38 +2636us[+5444us] +/- 369ms ^* lithium.constant.com 2 6 17 38 +4799us[+7607us] +/- 381ms

Only the servers are blocked from the internet since I figured they didn't require a connection but now the question of time synchronization arises. In fact my internet connection is derived from a satellite connection which has a system delay on the order of 800 ms. I would think that would offset me from the rest of the world by nearly one second if it matters ...

Interesting thought,

Bob
||

--
http://www.qrz.com/db/W2BOD
box10  Fedora-21/64bit Linux/XFCE

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