Hi,
it's been a long time but I'm currently cleaning up ntp bugs.
Actually there has been a fix for while isnce 2010, but later it broke and in
Xenial it got finally removed.
Please follow the argument at bug 575458
Copied here as reference:
Fundamentally we have two things at odds with each other. There are two sources
for NTP servers: 1) ntp.conf; and 2) any DHCP response. Clearly there are use
cases where the DHCP response should be used over an ntp.conf default, and
there are also use cases where the DHCP response should be ignored and
ntp.conf's default (or changed) settings used instead.
The only sane thing to do is to pick a default that will work for the
majority of users, and instruct users for whom this does not work on
what to do instead.
If you have configured your system to use DHCP, I think it is reasonable
to expect your system to honor NTP settings received back from DHCP.
IMHO, this should by default overrule any setting in ntp.conf, and so
Debian's current path is sane, and Ubuntu should follow.
Therefore I am dropping Ubuntu's delta on this point for Xenial.
If you have a special case where you are using DHCP but do not want
DHCP's NTP server response to override local settings, then you should
configure the DHCP client you are using to ignore any NTP part of the
DHCP response to get the behaviour you need. I'd appreciate if someone
could comment with exact steps on how to achieve this.
As the other bug I will set this to Won't Fix to reflect that
** Changed in: ntp (Ubuntu)
Status: Triaged => Won't Fix
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https://bugs.launchpad.net/bugs/374896
Title:
Servers specified in ntp.conf are not carried into ntp.conf.dhcp
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