[ntp:questions] ntp.conf true and prefer option for server command
suhas manjunath
suhasmanjunath32 at gmail.com
Mon Jan 16 07:15:10 UTC 2017
Hi,
I was trying to configure ntp servers in my ntp.conf file. Below is the
snippet of conf file.
restrict -4 IP1 kod nomodify notrap nopeer noquery
server -4 IP1 prefer true iburst minpoll 4 maxpoll 6
restrict -4 IP2 kod nomodify notrap nopeer noquery
server -4 IP2 iburst minpoll 4 maxpoll 6
restrict -4 IP3 kod nomodify notrap nopeer noquery
server -4 IP3 iburst minpoll 4 maxpoll 6
As per my understanding if prefer true option is used with IP1, it'll
escape/survive select and cluster algorithm, and will always be selected as
preferred server but it is not working it is taking IP3 as a preferred
server. Could anyone please explain it why?
Also to add more info: if I delete IP2 and IP3 forwarder then it will take
IP1 has preferred forwarder.
Output of ntpq –pn:
# ntpq -pn
remote refid st t when poll reach delay offset
jitter
==============================================================================
IP1 IP4 5 u 1 64 377 0.337
-14.852 0.913
+IP2 LOCAL(0) 7 u 55 64 377 0.290 0.224 1.286
*IP3 IP5 4 u 65 64 377 159.282
-13.244 1.914
127.127.1.2 .LOCL. 10 u 1969 16 0 0.000 0.000 0.000
Thanks,
Suhas T M
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